Tuesday, October 30, 2012
Physical Science A
Bellwork:
1. What do we call the regions found on a compression/longitudinal wave that would be analogous to the crest and trough of a transverse wave?
2. What happens to the wavelength of a wave as the frequency of the wave is increased?
Quiz: wave characteristics and wave classifications
Discuss surface waves and wave speed.
Demo: wave speed
HW: wave speed problems. Please finish the wave speed problems. We will go over and check them tomorrow.
Physics
Bellwork:
1. Wrap-up the impulse momentum lab. Be sure to use the data from your experiment to find the impulse in terms of Avg. Force times the change in time. Then compare that to the change in momentum using the mass of the cart time the change in velocity.
Check and Go over the homework problems, book and packet. Grab a whiteboard(if you borrow a marker, leave a shoe :)
Wrap-up the impulse lab. Discuss the results.
Discuss the Conservation of Momentum and Collisions.
Hand-out the conservation of momentum problems. Discuss and go over example. Secondly, write a one-page explanation on running shoes. How could you test the effectiveness of running shoes in terms of their ability to minimize the force exerted on the body. describe how you could test all the shoes in the classroom and how you would determine which shoe was the most effective.
Monday, October 29, 2012
Monday, October 29, 2012
Physical Science A
Bellwork:
1. Why are waves such an important topic to study in science?
2. Provide an explanation of why we know that wave carry energy?
3. Explain the ways that we can classify waves.
Collect and go over the concept review and the section one review questions.
Objectives:
1. Identify the different types of waves.
2. Identify the characteristics of a typical transverse and longitudinal wave.
Discuss wave characteristics.
HW: Read section 2, do the Q's of page 299, q's 1-4 and page 301, q's 1-7. We will have a short quiz tomorrow over the types of waves and wave characteristics.
Physics:
Bellwork:
1. For each of the following situations explain using the impulse-momentum theory:
-Crumple Zones on Cars
-Playing water balloon toss
-Hitting a Baseball
-Stunt man landing on an air bag/cushion
-Boxer moving away from punch
-Catching a baseball
HW: We will discuss and go over the homework tomorrow. Be sure to finish the problems from the book and the packet.
Lab:Impulse/Momentum Lab, In this lab you will be using the lab pro's to determine the impulse and change in momentum acting on the dynamics carts. The sensors you will be using will be the force sensor and the motion detector. There will be eight groups. Be sure to work in a group that is conducive to your learning and working style.
HW: Finish the Lab questions.
Side Notes:
-Don't forget to work on the Test Point Make-up problems, these will be due on Wed.!
-Egg Drop Project-Handout will be given today. The initial plans will be collected on Thursday. Projects will be due on Monday. We will test them on this day.
Physical Science A
Bellwork:
1. Why are waves such an important topic to study in science?
2. Provide an explanation of why we know that wave carry energy?
3. Explain the ways that we can classify waves.
Collect and go over the concept review and the section one review questions.
Objectives:
1. Identify the different types of waves.
2. Identify the characteristics of a typical transverse and longitudinal wave.
Discuss wave characteristics.
HW: Read section 2, do the Q's of page 299, q's 1-4 and page 301, q's 1-7. We will have a short quiz tomorrow over the types of waves and wave characteristics.
Physics:
Bellwork:
1. For each of the following situations explain using the impulse-momentum theory:
-Crumple Zones on Cars
-Playing water balloon toss
-Hitting a Baseball
-Stunt man landing on an air bag/cushion
-Boxer moving away from punch
-Catching a baseball
HW: We will discuss and go over the homework tomorrow. Be sure to finish the problems from the book and the packet.
Lab:Impulse/Momentum Lab, In this lab you will be using the lab pro's to determine the impulse and change in momentum acting on the dynamics carts. The sensors you will be using will be the force sensor and the motion detector. There will be eight groups. Be sure to work in a group that is conducive to your learning and working style.
HW: Finish the Lab questions.
Side Notes:
-Don't forget to work on the Test Point Make-up problems, these will be due on Wed.!
-Egg Drop Project-Handout will be given today. The initial plans will be collected on Thursday. Projects will be due on Monday. We will test them on this day.
Friday, October 26, 2012
Physical Science A
Bellwork:
1. What is a wave? How do they impact our lives?
Check Binders, please have your binders out so I can check them.
Objectives:
1. Describe what a wave is, the different classifications of waves, and the characteristic of a typical wave.
Discuss types of waves and wave characteristics.
Model wave motion with spring and slinky.
HW: Finish the vocabulary for the wave units. Concept review sheet on general wave characteristics. Lastly, please make sure you have read Chapter 10 and do the section 1 review questions on page 295.
Physics
Hand Back and Go over the test. Discuss answers. If you have a question, now is the time to ask. If you would like to earn a few points back. I have a set of problems that you may do to earn the points back. Complete the packet and get them correct and I will give you half the points that you have missed (only if they are correct).
Honor system counts! If you copy and I ask a question about the material and you can not answer it correctly, we will have to have a talk!
Discuss Momentum and Impulse.
HW: Read Chapter 9, please do the question on page 233 q's 1-5 and the page 235 q's 6-10.
We will have a lab over momentum and impulse on monday.
Physical Science A
Bellwork:
1. What is a wave? How do they impact our lives?
Check Binders, please have your binders out so I can check them.
Objectives:
1. Describe what a wave is, the different classifications of waves, and the characteristic of a typical wave.
Discuss types of waves and wave characteristics.
Model wave motion with spring and slinky.
HW: Finish the vocabulary for the wave units. Concept review sheet on general wave characteristics. Lastly, please make sure you have read Chapter 10 and do the section 1 review questions on page 295.
Physics
Hand Back and Go over the test. Discuss answers. If you have a question, now is the time to ask. If you would like to earn a few points back. I have a set of problems that you may do to earn the points back. Complete the packet and get them correct and I will give you half the points that you have missed (only if they are correct).
Honor system counts! If you copy and I ask a question about the material and you can not answer it correctly, we will have to have a talk!
Discuss Momentum and Impulse.
HW: Read Chapter 9, please do the question on page 233 q's 1-5 and the page 235 q's 6-10.
We will have a lab over momentum and impulse on monday.
Thursday, October 25, 2012
Physical Science A
Go over the test.
Test Remediation day. Answer the questions that correlate with the topics that you have missed. The remediation will be due tomorrow along with the vocabulary.
Binders will be checked today, be sure to have them out while you are working on the remediation.
HW: Finish the test remediation and also read Chapter 10 and answer the questions on page 295.
Physics
Test Day
Physical Science A
Go over the test.
Test Remediation day. Answer the questions that correlate with the topics that you have missed. The remediation will be due tomorrow along with the vocabulary.
Binders will be checked today, be sure to have them out while you are working on the remediation.
HW: Finish the test remediation and also read Chapter 10 and answer the questions on page 295.
Physics
Test Day
Wednesday, October 24, 2012
Physics
Bellwork: Grab a white board and we will do these on the boards.
1. A 32 kg box is resting on an inclined plane that has an inclined angle of 30 degrees to the horizontal.
a. Neglecting friction, find the net force pulling the box down the incline.
b. If the coefficient of friction between the box and the surface is .23, what is the net force pulling the box down the incline? The acceleration?
c. Find the normal force.
2. A 300 kg ball is at rest on a horizontal surface. What is the weight of the ball? What is the normal force?
3. Ian pushes on Dave with a constant force of 400 N, while Dave pushes with a force of 250 N. If the combined mass of the two is 220 kg, what is the net force acting on the "two person system"? What is the acceleration of the two? How far will they move in a time of 10 seconds?
Key Concepts to Study:
Forces:
-2 types: Contact Forces and Field Forces
-Unit is Newton, kg m/s2
-Forces are vectors: Add them together, use free body diagrams to identify what forces are acting in which direction.
ex. Weight=mass x gravity
Tension
Normal= weight(flat surface), always perpendicular to surface
Applied force
Friction= μ x FN
-Law's of Motion
a. First Law: Law of inertia(depends upon mass)
b. Second Law
c. Third Law
-Friction: Two types static and kinetic, static > kinetic
-Pressure
-Torque
Key Math Problems
1. Newton's Second Law: find acceleration, distance traveled, final velocity, vector addition
2. Weight
3. Friction
4. Inclined Plane
5. Tension
As you are solving:
1. If you are not sure where to start, begin with a free body diagram.
2. Determine where your forces are at, for example: Fg(weight), Normal Force, Applied Force, Friction
Physical Science A
Test over work, power, energy, and simple machines.
When you have finished, please work on the vocabulary for the chapter on waves. These will be due on friday. Also, the bind will be checked tomorrow while you are working on the test remediations.
Bellwork: Grab a white board and we will do these on the boards.
1. A 32 kg box is resting on an inclined plane that has an inclined angle of 30 degrees to the horizontal.
a. Neglecting friction, find the net force pulling the box down the incline.
b. If the coefficient of friction between the box and the surface is .23, what is the net force pulling the box down the incline? The acceleration?
c. Find the normal force.
2. A 300 kg ball is at rest on a horizontal surface. What is the weight of the ball? What is the normal force?
3. Ian pushes on Dave with a constant force of 400 N, while Dave pushes with a force of 250 N. If the combined mass of the two is 220 kg, what is the net force acting on the "two person system"? What is the acceleration of the two? How far will they move in a time of 10 seconds?
Key Concepts to Study:
Forces:
-2 types: Contact Forces and Field Forces
-Unit is Newton, kg m/s2
-Forces are vectors: Add them together, use free body diagrams to identify what forces are acting in which direction.
ex. Weight=mass x gravity
Tension
Normal= weight(flat surface), always perpendicular to surface
Applied force
Friction= μ x FN
-Law's of Motion
a. First Law: Law of inertia(depends upon mass)
b. Second Law
c. Third Law
-Friction: Two types static and kinetic, static > kinetic
-Pressure
-Torque
Key Math Problems
1. Newton's Second Law: find acceleration, distance traveled, final velocity, vector addition
2. Weight
3. Friction
4. Inclined Plane
5. Tension
As you are solving:
1. If you are not sure where to start, begin with a free body diagram.
2. Determine where your forces are at, for example: Fg(weight), Normal Force, Applied Force, Friction
Physical Science A
Test over work, power, energy, and simple machines.
When you have finished, please work on the vocabulary for the chapter on waves. These will be due on friday. Also, the bind will be checked tomorrow while you are working on the test remediations.
Tuesday, October 23, 2012
Tuesday October 23, 2012
Physics
Wrap-up the torque lab. Obtain an object to represent your unknown mass. Use the skills developed yesterday to find the mass of the object.
Review: We will work in groups to discuss the review questions. Each group will work on a question. Each group will consist of three people and will rotate around the room from question table to question table.
At the end, we will discuss the answers to the questions and will discuss any problems areas that you may have.
Be sure to study tonight. Go over all the concepts and math equations.
Physical Science A
Bellwork:
1. If I do 1600 J of work placing a box onto a shelf, how much potential energy does the box have? If the box fell off the shelf, how much kinetic energy would the box have just before it struck the ground?
2. How are work, potential energy, and kinetic energy related?
3. Using your understanding on the Law of Conservation of Energy, explain what happens to food energy after you consume it?
Go over the homework questions.
Practice test.
Go over the answers for the practice test.
Hand out the binder list.
HW: Test Tomorrow. Make sure you spend time studying!
Physics
Wrap-up the torque lab. Obtain an object to represent your unknown mass. Use the skills developed yesterday to find the mass of the object.
Review: We will work in groups to discuss the review questions. Each group will work on a question. Each group will consist of three people and will rotate around the room from question table to question table.
At the end, we will discuss the answers to the questions and will discuss any problems areas that you may have.
Be sure to study tonight. Go over all the concepts and math equations.
Physical Science A
Bellwork:
1. If I do 1600 J of work placing a box onto a shelf, how much potential energy does the box have? If the box fell off the shelf, how much kinetic energy would the box have just before it struck the ground?
2. How are work, potential energy, and kinetic energy related?
3. Using your understanding on the Law of Conservation of Energy, explain what happens to food energy after you consume it?
Go over the homework questions.
Practice test.
Go over the answers for the practice test.
Hand out the binder list.
HW: Test Tomorrow. Make sure you spend time studying!
Sunday, October 21, 2012
Monday October 22, 2012
Physics
Bellwork:
1. Why is that when you are walking across ice, you should try not to run?
2. If a machine were being designed to dig mines, would a leading edge that is small and tapered be better than a wide and flat surface? Explain?
Discuss torque, center of gravity, and balance.
Torque activity, determine how torque works and how to determine the mass of an unknown object using your knowledge of torque.
Physical Science A
Bellwork:
1. How does the output force compare to the input force if the mechanical advantage of a machine is less than one, equal to one, and more than one?
2. IF you put in 400 joules into a machine and get 300 joule out, what is the efficiency of the machine?
3. How much work is done by a girl who pushes a cart of bricks if she applies a force of 500 N over a distance of 10 meters in a time of 20 seconds?
Discuss simple machines and energy.
Demo: bowling ball
HW: Review Questions. Please answer the questions we will go over the answers tomorrow.
Test will be on wed. We will take the practice test tomorrow and go over any questions that you may still have.
Physics
Bellwork:
1. Why is that when you are walking across ice, you should try not to run?
2. If a machine were being designed to dig mines, would a leading edge that is small and tapered be better than a wide and flat surface? Explain?
Discuss torque, center of gravity, and balance.
Torque activity, determine how torque works and how to determine the mass of an unknown object using your knowledge of torque.
Physical Science A
Bellwork:
1. How does the output force compare to the input force if the mechanical advantage of a machine is less than one, equal to one, and more than one?
2. IF you put in 400 joules into a machine and get 300 joule out, what is the efficiency of the machine?
3. How much work is done by a girl who pushes a cart of bricks if she applies a force of 500 N over a distance of 10 meters in a time of 20 seconds?
Discuss simple machines and energy.
Demo: bowling ball
HW: Review Questions. Please answer the questions we will go over the answers tomorrow.
Test will be on wed. We will take the practice test tomorrow and go over any questions that you may still have.
Wednesday, October 17, 2012
October 17, 2012
Physical Science A
Finish the lab on Simple Machines.
When finished, please make sure that you answer all the questions after each section. If you finish prior to the end of the hour you may hand in the lab.
HW: Read Chapter 4 on energy and take notes on the chapter. We will begin discussing the material tomorrow.
Physics
Bellwork:
1. What happens to the size of the size of the following forces as the surface that they are resting upon begin to move from the horizontal surface towards an inclined surface with an angle of 75 degrees?
Force of Gravity
Normal Force
Down Force
Force of Static Friction
Force of Kinetic Friction
Finish the Friction lab. Be sure to answer all the summary questions. Also, please read pg 342 and do the questions on page 344 #'s 2,3,4 and also read page 202 and do the questions on page 203 #'s 11,12,13,14,15
Physical Science A
Finish the lab on Simple Machines.
When finished, please make sure that you answer all the questions after each section. If you finish prior to the end of the hour you may hand in the lab.
HW: Read Chapter 4 on energy and take notes on the chapter. We will begin discussing the material tomorrow.
Physics
Bellwork:
1. What happens to the size of the size of the following forces as the surface that they are resting upon begin to move from the horizontal surface towards an inclined surface with an angle of 75 degrees?
Force of Gravity
Normal Force
Down Force
Force of Static Friction
Force of Kinetic Friction
Finish the Friction lab. Be sure to answer all the summary questions. Also, please read pg 342 and do the questions on page 344 #'s 2,3,4 and also read page 202 and do the questions on page 203 #'s 11,12,13,14,15
Monday, October 15, 2012
October 16, 2012
Physical Science A
Bellwork:
1. How does the time taken to do work affect how much power is required for the work?
2. If a student pushes on a cart with a force of 800 N for 120 seconds and the cart does not move, how much work is done by the student?
Collect the simple machine explanations. If you have not finished the explanation, you will not start the lab! Please go to the desk on the side of the room and finish you explanations.
Objectives
1. Explain why all mechanical systems require an external energy source to maintain their motion.
2. Compare the work, input force, output force, mechanical advantage, and efficiency of the six simple machines (pulley, lever, wheel and axle, screw, inclined plane, wedge).
Simple Machine Lab: Gain a practical understanding of how pulleys and levers work using hands on activities. We will work on the lab for the period today and finish tomorrow. If you do not finish the lab tomorrow, you will be responsible for finishing the lab at lunch or in the morning on thursday.
Physics
Check and Go over the prelab. Discuss the answers.
Friction Lab:
This lab will allow you to calculate the coefficients of static and kinetic friction. This lab requires extreme care if you are to calculate the results correctly.
The setup is designed to allow you to slowly increase the angle of the board. By doing this you will also increase the force pulling the block down the incline. The correlation is
increased angle = increased down force
As the angle and force then increase, there will be an angle where the block begins to move due to the increase size of the down force. It is at this exact angle where the down force is equal to the force of static friction.
Secondly, you will set the board at an angle larger than the motion angle in part a. You will then calculate the acceleration of the block as it moves down the incline. The acceleration can then be used to calculate the coefficient of kinetic friction.
Physical Science A
Bellwork:
1. How does the time taken to do work affect how much power is required for the work?
2. If a student pushes on a cart with a force of 800 N for 120 seconds and the cart does not move, how much work is done by the student?
Collect the simple machine explanations. If you have not finished the explanation, you will not start the lab! Please go to the desk on the side of the room and finish you explanations.
Objectives
1. Explain why all mechanical systems require an external energy source to maintain their motion.
2. Compare the work, input force, output force, mechanical advantage, and efficiency of the six simple machines (pulley, lever, wheel and axle, screw, inclined plane, wedge).
Simple Machine Lab: Gain a practical understanding of how pulleys and levers work using hands on activities. We will work on the lab for the period today and finish tomorrow. If you do not finish the lab tomorrow, you will be responsible for finishing the lab at lunch or in the morning on thursday.
Physics
Check and Go over the prelab. Discuss the answers.
Friction Lab:
This lab will allow you to calculate the coefficients of static and kinetic friction. This lab requires extreme care if you are to calculate the results correctly.
The setup is designed to allow you to slowly increase the angle of the board. By doing this you will also increase the force pulling the block down the incline. The correlation is
increased angle = increased down force
As the angle and force then increase, there will be an angle where the block begins to move due to the increase size of the down force. It is at this exact angle where the down force is equal to the force of static friction.
Secondly, you will set the board at an angle larger than the motion angle in part a. You will then calculate the acceleration of the block as it moves down the incline. The acceleration can then be used to calculate the coefficient of kinetic friction.
October 15, 2012
Physical Science A
Bellwork:
1. What does the mechanical advantage of a machine indicate? If the value of the mechanical advantage is less than 1, what does that indicate about the machine?
2. How does the amount of work done compare for the following situations:
a. Climbing a ladder up to a loft.
b. Walking up a plank up to the same loft.
3. IF a situation requires 1200 J of work to perform, which will require more power, if the work is done quickly or slowly?
Activity: Which requires more work? Determine which situation requires more work, the steep slope or the low slope?
Discuss machines, mechanical advantage, and efficiency.
Objectives:
1. Explain why all mechanical systems require an external energy source to maintain their motion.
2. Compare the work, input force, output force, mechanical advantage, and efficiency of the six simple machines (pulley, lever, wheel and axle, screw, inclined plane, wedge).
HW: Simple Machines: You will have to research all six types of simple machines. For each type of simple machine you should: explain how it works, the different types of each, how to increase the mechanical advantage, and how to decrease the mechanical advantage.
For this assignment I will expect a drawing of each type of machine, followed by a paragraph explanation for each type of simple machine.
The simple machine explanation will be collected tomorrow.
Also, you will have to fix the problems that you have gotten wrong on your quiz. This will be due on wed.
Physics
Bellwork:
1. If a 23 kg bird feeder is hung in the middle of a 6 meter rope that is strung between two trees. If the feeder pulls the rope down .34 meters, what is the tension in the ropes that are supporting the feeder?
2. What is the force of kinetic friction between a 80 kg box and the floor is the coefficient of friction is .4?
Go over the home work. Discuss the answer and method involved in solving the friction and statics problems.
Discuss the force of gravity and incline plane problems.
HW: Friction prelab and be sure you have read chapter 4 and also read chapter 5. Do the
questions 35, 36, 37 in chapter 4 and 2,4,6,9,13,14,17-21 in chapter 5.
Physical Science A
Bellwork:
1. What does the mechanical advantage of a machine indicate? If the value of the mechanical advantage is less than 1, what does that indicate about the machine?
2. How does the amount of work done compare for the following situations:
a. Climbing a ladder up to a loft.
b. Walking up a plank up to the same loft.
3. IF a situation requires 1200 J of work to perform, which will require more power, if the work is done quickly or slowly?
Activity: Which requires more work? Determine which situation requires more work, the steep slope or the low slope?
Discuss machines, mechanical advantage, and efficiency.
Objectives:
1. Explain why all mechanical systems require an external energy source to maintain their motion.
2. Compare the work, input force, output force, mechanical advantage, and efficiency of the six simple machines (pulley, lever, wheel and axle, screw, inclined plane, wedge).
HW: Simple Machines: You will have to research all six types of simple machines. For each type of simple machine you should: explain how it works, the different types of each, how to increase the mechanical advantage, and how to decrease the mechanical advantage.
For this assignment I will expect a drawing of each type of machine, followed by a paragraph explanation for each type of simple machine.
The simple machine explanation will be collected tomorrow.
Also, you will have to fix the problems that you have gotten wrong on your quiz. This will be due on wed.
Physics
Bellwork:
1. If a 23 kg bird feeder is hung in the middle of a 6 meter rope that is strung between two trees. If the feeder pulls the rope down .34 meters, what is the tension in the ropes that are supporting the feeder?
2. What is the force of kinetic friction between a 80 kg box and the floor is the coefficient of friction is .4?
Go over the home work. Discuss the answer and method involved in solving the friction and statics problems.
Discuss the force of gravity and incline plane problems.
HW: Friction prelab and be sure you have read chapter 4 and also read chapter 5. Do the
questions 35, 36, 37 in chapter 4 and 2,4,6,9,13,14,17-21 in chapter 5.
Friday, October 12, 2012
October 12, 2012
Physics
Collect the Lab.
Bellwork:
1. Consider a situation where 3 forces are acting on a point. The sum of the force is zero. The first force has a magnitude of 80 N acting in a direction of 35 degrees north of east. The second force has a magnitude of 29 degrees acting in a direction of 12 west of north. Where and how large will the third force be to maintain the zero net force equilibrium.
2. Josh of the Jungle is swinging from tree to tree using the local native vines. Each vine can hold a maximum force of 900 N. If Josh, whose mass is 85 kg, pulls the vine pack to an angle of 56 degrees, will he make it across the pit of crocodiles or will he be lunch?
Discuss friction and statics. Go over the concepts and calculations.
Hand out the friction and statics packet.
HW: Finish the packet problems. Be sure you have read chapter 4 and also read chapter 5. Do the
questions 35, 36, 37 in chapter 4 and 2,4,6,9,13,14,17-21
Physical Science A
Quiz: work and power
While you are waiting for the rest of your classmates to finish, please make sure that you have read the chapter. The section two questions are due on Monday!
We will finish the muscle up lab. Be sure to check your calculations, answer the questions at the end.
Explain the inclined plane problem. Show how to set up the track. Investigate which scenario requires more work. When finished answer the questions.
Objectives:
1. Compare work done in different situations. Give two examples of work being done and
compare the magnitude of the work in each situation.
2. Explain why work has a more precise scientific meaning than the meaning of work in everyday language.
3. Calculate the amount of work done on an object that is moved from one position to another. Use the formula W=Fd to solve for the work done by an object.
HW: Section two review questions, Answer the questions on both activities(muscle up and inclined plane).
Bonus Work: You can pick up the additional problems for work and power. Also, begin working through the chapter review at the end.
Physics
Collect the Lab.
Bellwork:
1. Consider a situation where 3 forces are acting on a point. The sum of the force is zero. The first force has a magnitude of 80 N acting in a direction of 35 degrees north of east. The second force has a magnitude of 29 degrees acting in a direction of 12 west of north. Where and how large will the third force be to maintain the zero net force equilibrium.
2. Josh of the Jungle is swinging from tree to tree using the local native vines. Each vine can hold a maximum force of 900 N. If Josh, whose mass is 85 kg, pulls the vine pack to an angle of 56 degrees, will he make it across the pit of crocodiles or will he be lunch?
Discuss friction and statics. Go over the concepts and calculations.
Hand out the friction and statics packet.
HW: Finish the packet problems. Be sure you have read chapter 4 and also read chapter 5. Do the
questions 35, 36, 37 in chapter 4 and 2,4,6,9,13,14,17-21
Physical Science A
Quiz: work and power
While you are waiting for the rest of your classmates to finish, please make sure that you have read the chapter. The section two questions are due on Monday!
We will finish the muscle up lab. Be sure to check your calculations, answer the questions at the end.
Explain the inclined plane problem. Show how to set up the track. Investigate which scenario requires more work. When finished answer the questions.
Objectives:
1. Compare work done in different situations. Give two examples of work being done and
compare the magnitude of the work in each situation.
2. Explain why work has a more precise scientific meaning than the meaning of work in everyday language.
3. Calculate the amount of work done on an object that is moved from one position to another. Use the formula W=Fd to solve for the work done by an object.
HW: Section two review questions, Answer the questions on both activities(muscle up and inclined plane).
Bonus Work: You can pick up the additional problems for work and power. Also, begin working through the chapter review at the end.
October 11, 2012
Physical Science A
Bellwork:
1. Consider a situation where a person pushes on a car with a force of 2000 N for 85 seconds. The car does not move. How much work and power does the person use?
2. In order for work to be done, what must occur?
Objectives:
1. Compare work done in different situations. Give two examples of work being done and
compare the magnitude of the work in each situation.
2. Explain why work has a more precise scientific meaning than the meaning of work in everyday language.
3. Calculate the amount of work done on an object that is moved from one position to another. Use the formula W=Fd to solve for the work done by an object.
Check and Go over the homework problems.
Muscle up Lab. Each group will perform five activities where they will calculate the work done and the power used.
HW: Finish the lab questions. Read section one and two in the book and answer the questions on page 131. Quiz tomorrow over work and power.
Physics:
Bellwork:
1. Answer the force question on the white board
Hand in and discuss the rocket explanation.
Test the predictions: 1/3 water
1/2 water
3/4 water
Check and go over the the math problems.
Pick-up a prelab and lets discuss forces and angles.
Discuss Lab method and begin lab today, we will finish lab tomorrow.
HW:2-Dimensional Forces lab(do as much of the lab that you can). Pick-up the friction and statics problems, if you would like to get started, you could work on the statics problems. We will begin those tomorrow.
Physical Science A
Bellwork:
1. Consider a situation where a person pushes on a car with a force of 2000 N for 85 seconds. The car does not move. How much work and power does the person use?
2. In order for work to be done, what must occur?
Objectives:
1. Compare work done in different situations. Give two examples of work being done and
compare the magnitude of the work in each situation.
2. Explain why work has a more precise scientific meaning than the meaning of work in everyday language.
3. Calculate the amount of work done on an object that is moved from one position to another. Use the formula W=Fd to solve for the work done by an object.
Check and Go over the homework problems.
Muscle up Lab. Each group will perform five activities where they will calculate the work done and the power used.
HW: Finish the lab questions. Read section one and two in the book and answer the questions on page 131. Quiz tomorrow over work and power.
Physics:
Bellwork:
1. Answer the force question on the white board
Hand in and discuss the rocket explanation.
Test the predictions: 1/3 water
1/2 water
3/4 water
Check and go over the the math problems.
Pick-up a prelab and lets discuss forces and angles.
Discuss Lab method and begin lab today, we will finish lab tomorrow.
HW:2-Dimensional Forces lab(do as much of the lab that you can). Pick-up the friction and statics problems, if you would like to get started, you could work on the statics problems. We will begin those tomorrow.
Wednesday, October 10, 2012
October 10, 2012
Physical Science A
Bellwork:
1. Explain what work means in science.
2. How does the meaning of work in science differ from that of work in the real world?
Objectives:
1. Compare work done in different situations. Give two examples of work being done and
compare the magnitude of the work in each situation.
2. Explain why work has a more precise scientific meaning than the meaning of work in everyday language.
3. Calculate the amount of work done on an object that is moved from one position to another. Use the formula W=Fd to solve for the work done by an object.
Hand in and check the Test Rememdiations and the Vocabulary.
Discuss Work and Power.
Go over the math problem for work and power.
HW: Work and Power Problems
Physics:
Bellwork:
1. Answer the force question on the white board
Hand in and discuss the rocket explanation.
Test the predictions: 1/3 water
1/2 water
3/4 water
Check and go over the the math problems.
Pick-up a prelab and lets discuss forces and angles.
Discuss Lab method and begin lab today, we will finish lab tomorrow.
HW:2-Dimensional Forces lab(do as much of the lab that you can). Pick-up the friction and statics problems, if you would like to get started, you could work on the statics problems. We will begin those tomorrow.
Physical Science A
Bellwork:
1. Explain what work means in science.
2. How does the meaning of work in science differ from that of work in the real world?
Objectives:
1. Compare work done in different situations. Give two examples of work being done and
compare the magnitude of the work in each situation.
2. Explain why work has a more precise scientific meaning than the meaning of work in everyday language.
3. Calculate the amount of work done on an object that is moved from one position to another. Use the formula W=Fd to solve for the work done by an object.
Hand in and check the Test Rememdiations and the Vocabulary.
Discuss Work and Power.
Go over the math problem for work and power.
HW: Work and Power Problems
Physics:
Bellwork:
1. Answer the force question on the white board
Hand in and discuss the rocket explanation.
Test the predictions: 1/3 water
1/2 water
3/4 water
Check and go over the the math problems.
Pick-up a prelab and lets discuss forces and angles.
Discuss Lab method and begin lab today, we will finish lab tomorrow.
HW:2-Dimensional Forces lab(do as much of the lab that you can). Pick-up the friction and statics problems, if you would like to get started, you could work on the statics problems. We will begin those tomorrow.
Tuesday, October 9, 2012
October 9, 2012
Physical Science A
Bellwork:
1. What is energy? How does it work? Where does it come from? How can we use it?
Test Remediation Day. Pick up you test remediation, answer only the questions that correspond with the questions that you missed on the test.
Also, get your binder in order. I will check them today.
HW: Vocabulary due tomorrow along with the test remediation. If you have not read the chapter be sure to do so and begin taking notes on the material! This will help with the note taking process and also provide you with more time to process and ask questions in class while we discuss.
Physics
Bellwork:
1. Ian and Dave pull on ropes attached to a box. Ian pulls to the left with a force of 45 N. Dave pulls in the opposite direction. If the box which has a mass of 120 kg, accelerates at a rate of .9 m/s2 towards Dave. How large was the force that Dave applied.
2. If an object has a weight of 450 N acting on it and it is at rest on a horizontal surface, what is the magnitude of the normal force acting on it?
Collect Lab/Check the book work. Go over questions of concern.
Continue discussing Newton's Third Law and Friction
Explain the fan and cart/also the rocket launch
Explain the process for the 2nd law problems, friction, and begin statics.
HW: 2nd Law Problems and Statics.
Physical Science A
Bellwork:
1. What is energy? How does it work? Where does it come from? How can we use it?
Test Remediation Day. Pick up you test remediation, answer only the questions that correspond with the questions that you missed on the test.
Also, get your binder in order. I will check them today.
HW: Vocabulary due tomorrow along with the test remediation. If you have not read the chapter be sure to do so and begin taking notes on the material! This will help with the note taking process and also provide you with more time to process and ask questions in class while we discuss.
Physics
Bellwork:
1. Ian and Dave pull on ropes attached to a box. Ian pulls to the left with a force of 45 N. Dave pulls in the opposite direction. If the box which has a mass of 120 kg, accelerates at a rate of .9 m/s2 towards Dave. How large was the force that Dave applied.
2. If an object has a weight of 450 N acting on it and it is at rest on a horizontal surface, what is the magnitude of the normal force acting on it?
Collect Lab/Check the book work. Go over questions of concern.
Continue discussing Newton's Third Law and Friction
Explain the fan and cart/also the rocket launch
Explain the process for the 2nd law problems, friction, and begin statics.
HW: 2nd Law Problems and Statics.
Sunday, October 7, 2012
Monday October 8th, 2012
Physics
Second Law Lab. Remember to check your equations with me before you start the data collection. Secondly, make sure the cart is just before the first gate when you release the cart. The goal is to have an initial velocity of zero when the first gate timer is tripped.
When done, please show the data to me. I will check the numbers and your % error.
Finish the summary questions individually.
HW: pg 93, 95, 98,100, 101 (q's 6-21)
Physical Science A
Test Today, be sure to get computers out and start them up.
Pick up a binder checklist.
Any last minute questions.
Test over forces.
When done, please pick up the objectives and vocabulary for the next unit.
HW: Vocabulary needs to be defined. Secondly, please read and take notes on chapter 5 in the text.
Physics
Second Law Lab. Remember to check your equations with me before you start the data collection. Secondly, make sure the cart is just before the first gate when you release the cart. The goal is to have an initial velocity of zero when the first gate timer is tripped.
When done, please show the data to me. I will check the numbers and your % error.
Finish the summary questions individually.
HW: pg 93, 95, 98,100, 101 (q's 6-21)
Physical Science A
Test Today, be sure to get computers out and start them up.
Pick up a binder checklist.
Any last minute questions.
Test over forces.
When done, please pick up the objectives and vocabulary for the next unit.
HW: Vocabulary needs to be defined. Secondly, please read and take notes on chapter 5 in the text.
Friday October 5th, 2012
Physical Science A:
Bellwork
1. What is the weight of an 880 N object?
2. How much pressure is being exerted by a 400 N object that has an area of contact of .8m2?
3. Explain the motion of a rocket using Newton's Third Law.
Objectives:
-Review all the concepts discussed in class.
Go over the homework. Check and discuss.
Practice Test. Focus on good test taking skills, reading carefully, and relaxing.
When finished, study for the test.
Physics
Bellwork:
1. Draw a free body diagram of a situation where a person pulls on a box with a rope causing the box to move with a constant acceleration. Is there a net force acting on the object? If so, what is producing the net force?
Go over and check the prelab.
Discuss forces, free body diagrams, and newton's second law.
Explain the Second Law Lab.
HW: pg 93, 95, 98,100, 101 (q's 6-21)
Physical Science A:
Bellwork
1. What is the weight of an 880 N object?
2. How much pressure is being exerted by a 400 N object that has an area of contact of .8m2?
3. Explain the motion of a rocket using Newton's Third Law.
Objectives:
-Review all the concepts discussed in class.
Go over the homework. Check and discuss.
Practice Test. Focus on good test taking skills, reading carefully, and relaxing.
When finished, study for the test.
Physics
Bellwork:
1. Draw a free body diagram of a situation where a person pulls on a box with a rope causing the box to move with a constant acceleration. Is there a net force acting on the object? If so, what is producing the net force?
Go over and check the prelab.
Discuss forces, free body diagrams, and newton's second law.
Explain the Second Law Lab.
HW: pg 93, 95, 98,100, 101 (q's 6-21)
Thursday, October 4, 2012
Thursday, October 4, 2012
Physics
Go over the quiz, discuss answers, problem areas.
Check and go over the free body diagram homework.
Discuss forces, list examples of everyday forces, newton's three laws of motion.
Demonstration First Law of Motion
HW: Prelab on 2nd Law of Motion. Q's 1-5 on pg. 89.
Physical Science A
Bellwork:
1. A group of students are arguing about weight. The first student explains that weight will stay the same no matter where you are. While the second student explains that it will change but can't remember why. Which student is correct? What should student 2 have also included in his explanation?
2. What is the mass of an object that weighs 4500 N on Earth?
3. How does pressure relate to forces?
Objectives:
1. Explain Newton's Laws of Motion.
2. Explain how rockets are propelled through the air.
3. Explain how the concept of pressure is useful when explain the effects of an applied force.
Go over and check the pressure problem.
Demo glass bottle
Discuss Newton's Third Law of Motion
HW: Laws of Motion Review Sheet.
Tomorrow we will take a practice test. This will be a nice review and will provide you with a idea of where you are at with you understanding of the concepts. You will be able to keep these and use to study.
Physics
Go over the quiz, discuss answers, problem areas.
Check and go over the free body diagram homework.
Discuss forces, list examples of everyday forces, newton's three laws of motion.
Demonstration First Law of Motion
HW: Prelab on 2nd Law of Motion. Q's 1-5 on pg. 89.
Physical Science A
Bellwork:
1. A group of students are arguing about weight. The first student explains that weight will stay the same no matter where you are. While the second student explains that it will change but can't remember why. Which student is correct? What should student 2 have also included in his explanation?
2. What is the mass of an object that weighs 4500 N on Earth?
3. How does pressure relate to forces?
Objectives:
1. Explain Newton's Laws of Motion.
2. Explain how rockets are propelled through the air.
3. Explain how the concept of pressure is useful when explain the effects of an applied force.
Go over and check the pressure problem.
Demo glass bottle
Discuss Newton's Third Law of Motion
HW: Laws of Motion Review Sheet.
Tomorrow we will take a practice test. This will be a nice review and will provide you with a idea of where you are at with you understanding of the concepts. You will be able to keep these and use to study.
Wed. October 3, 2012
Physics
Go over a couple of example problems.
Quiz: Projectile Motion
When you are finished with the quiz. Please begin reading all of chapter 4 and section 5.2 of chapter 5.
While reading and taking notes is will be handy to answer the following questions:
What is a force?
What are some common examples of forces?
What happens when more than one force acts on an object?
What are the laws related to forces?
Discuss what forces are, how we describe them, and how we draw simple vector diagrams/free body diagrams to analyze a situation.
HW: Free Body Diagrams. Draw the free body diagram for the situation given. If forces are there are two forces that are in the same or opposite direction, identify the net force or if they are equal.
Physical Science A
Bellwork:
1. Using your knowledge of the material up to this point, write a math problem for the following concepts: Acceleration, Newton's Second Law, and Weight. When you have finished, quiz the person to the right of your seat.
2. Explain what happens to the gravitational force between two object when the size of one of the objects is tripled? What happens to the force if the distance between the objects is cut in half.
3. How does the acceleration of a bowling ball and the acceleration of a marble compare to each other if they are dropped at the same time from the same height?
Objective:
-Explain the factors used to calculate the weight of an object.
-Explain how pressure relates to applied forces and how the applied pressure is calculated.
Check and go over the weight problems
Demo:
-dixie cups, student in a bag, bed of nails, snow shoes, ice rescue
Discuss pressure
Demo:
-glass bottle/hydraulics
HW:Pressure problems worksheet
Physics
Go over a couple of example problems.
Quiz: Projectile Motion
When you are finished with the quiz. Please begin reading all of chapter 4 and section 5.2 of chapter 5.
While reading and taking notes is will be handy to answer the following questions:
What is a force?
What are some common examples of forces?
What happens when more than one force acts on an object?
What are the laws related to forces?
Discuss what forces are, how we describe them, and how we draw simple vector diagrams/free body diagrams to analyze a situation.
HW: Free Body Diagrams. Draw the free body diagram for the situation given. If forces are there are two forces that are in the same or opposite direction, identify the net force or if they are equal.
Physical Science A
Bellwork:
1. Using your knowledge of the material up to this point, write a math problem for the following concepts: Acceleration, Newton's Second Law, and Weight. When you have finished, quiz the person to the right of your seat.
2. Explain what happens to the gravitational force between two object when the size of one of the objects is tripled? What happens to the force if the distance between the objects is cut in half.
3. How does the acceleration of a bowling ball and the acceleration of a marble compare to each other if they are dropped at the same time from the same height?
Objective:
-Explain the factors used to calculate the weight of an object.
-Explain how pressure relates to applied forces and how the applied pressure is calculated.
Check and go over the weight problems
Demo:
-dixie cups, student in a bag, bed of nails, snow shoes, ice rescue
Discuss pressure
Demo:
-glass bottle/hydraulics
HW:Pressure problems worksheet
Tuesday, October 2, 2012
October 2, 2012
Physics
Bellwork:
1. A bird traveling at 25 m/s drops its recently caught prey from a height of 400m. Find the horizontal
distance the prey traveled before striking the ground. How long did the prey fall? What was its final vertical velocity before striking the ground.
2. A boy tosses a ball to his dad who is 3.5 meters away. If the ball were thrown with an initial velocity of 2.5 m/s at an angle of 24 degrees to the horizontal, will the ball land in the dads if it stays in the air for .22 seconds?
Check and go over the homework problems.
Discuss projectile motion and satellites
Study for quiz tomorrow.
Physical Science A
Bellwork:
1. State Newton's First two laws of motion.
2. Make a list of all the forces we have talked about up to this point and write out all of the formulas.
3. What is the acceleration of a 80 kg cart that has a force of 240 N acting on it?
4. What happens to the force of gravity between two objects if the distance between them increases? Decreases?
Objectives:
1. List and describe the typical force that you experience and interact with on a daily basis.
2. Draw vector diagrams (arrows with magnitudes) that Identifies the magnitude and direction of everyday forces (e.g., wind, tension in ropes, pushes and pulls, weight).
3. Explain how the weight of an object is calculated.
4. Explain how air resistance affect a falling object.
Finish the Scavenger Hunt, be sure to find the mass of the objects. We will go over the answers today in class and go through a few examples of how to solve the gravitational force problems.
Today we will discuss weight and air resistance.
??Will a larger object fall faster than a smaller object??
-Demo to analyze this concept.
HW: Weight Calculations. Determine the weight/mass of an object in a given situation. ALSO, finish the calculations for the scavenger hunt
Additional: If you are struggling with remembering the forces, formulas, and concepts, you could make flash cards on quizlet
Physics
Bellwork:
1. A bird traveling at 25 m/s drops its recently caught prey from a height of 400m. Find the horizontal
distance the prey traveled before striking the ground. How long did the prey fall? What was its final vertical velocity before striking the ground.
2. A boy tosses a ball to his dad who is 3.5 meters away. If the ball were thrown with an initial velocity of 2.5 m/s at an angle of 24 degrees to the horizontal, will the ball land in the dads if it stays in the air for .22 seconds?
Check and go over the homework problems.
Discuss projectile motion and satellites
Study for quiz tomorrow.
Physical Science A
Bellwork:
1. State Newton's First two laws of motion.
2. Make a list of all the forces we have talked about up to this point and write out all of the formulas.
3. What is the acceleration of a 80 kg cart that has a force of 240 N acting on it?
4. What happens to the force of gravity between two objects if the distance between them increases? Decreases?
Objectives:
1. List and describe the typical force that you experience and interact with on a daily basis.
2. Draw vector diagrams (arrows with magnitudes) that Identifies the magnitude and direction of everyday forces (e.g., wind, tension in ropes, pushes and pulls, weight).
3. Explain how the weight of an object is calculated.
4. Explain how air resistance affect a falling object.
Finish the Scavenger Hunt, be sure to find the mass of the objects. We will go over the answers today in class and go through a few examples of how to solve the gravitational force problems.
Today we will discuss weight and air resistance.
??Will a larger object fall faster than a smaller object??
-Demo to analyze this concept.
HW: Weight Calculations. Determine the weight/mass of an object in a given situation. ALSO, finish the calculations for the scavenger hunt
Additional: If you are struggling with remembering the forces, formulas, and concepts, you could make flash cards on quizlet
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