Thursday, January 31, 2013

Thurs.  January 31, 2013

Physical Science A (    Thursday)

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?

Work and Power Quiz

Discuss machines, mechanical advantage, and efficiency.

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.

HW:The simple machine explanation will be collected tomorrow. 
   
Physical Science B

Test Today!  Please have your computers out and log into examview.  Make sure that you have a sheet of paper to write your answers down on.  If you would like a paper copy, please ask.

When you have finished please work on the vocabulary for the ecology unit.  We will be switching from using the physical science text to using the biology text. 

Secondly:
    -Read and take notes of Chapter 3. 
    -Focus on      a.  What is Ecology?
            b.  What are the levels of organization within the biosphere?
               c.  What are the different ways that living things obtain energy?
            d.  How does energy flow through an ecosystem?
            e.  How do nutrients and chemical cycle through an ecosystem?

HW:  Read the chapter, take notes on chapter 3, finish the vocabulary.
Wed. January 30, 2013

Physical Science A
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. 

Physical Science B

Bellwork:
    1.  Let's go over the review sheet and discuss any problem questions that you may have had.

    2.  Read and discuss article.



Practice test.

When everyone has finished the practice test, we will go over the answers and touch on a few key points.

HW:  Study for the test.  Test is tomorrow. 
Tuesday, January 29, 2013

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 wed. over work and power.

Physical Science B
Welcome back after a long weekend!

Bellwork:
    1.  How are the different products separated from petroleum.  What is this process called?

    2.  Currently, how much of our energy is produced using solar energy?  What are some other terms used to     describe solar energy?

    3.  What does the term biomass refer to?

Check and work in groups to compare and check the answers for the homework.  Within each group discuss the answers to what you had found with the homework.  If a person in your group is struggling with the material, take the time to explain and help.  Also, call me over to help too.  By the end of the day, we should have both assignments checked and gone over.  We will hit on key points of each of the renewable resources and I will hand out the review sheet.

Finish renewable resources. 

HW: Review sheet.  We will have a practice test tomorrow and a test on thursday.

Monday, January 21, 2013

Wed., January 23, 2013

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.

Physical Science B
Bellwork:
    1.  What are some of the benefits of using biodiesel over petroleum based diesel?



Objectives:
    1.  Understand the difference between renewable vs. Nonrenewable resources.

    2.  List and describe examples of renewable and nonrenewable resources.

Check and go over the book problems

Discuss Nonrenewable resources.

Work on resources vocabulary sheet.

Finish up you projects.  They are due tomorrow.


HW: Projects are due tomorrow.  Be ready to present!  It is not time to work on the projects when others are presenting.  If you are not done, then consider it late. 
Monday, January 21, 2013

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.  What is the acceleration of an object that takes off from a stop sign and accelerates to a velocity fo 45     m/s in a time of 9 seconds?

    4.  What force is required to accelerate a 400 kg object at a rate of 10 m/s2?

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.

Go over the answers for the practice test.

When finished, study for the test.

Test Tomorrow!

Physical Science B

Bellwork:
    1.  What are the benefits for Amercan's switching their dependence upon foreign oil, to a product that may     be produced domestically?  What are a few possible drawbacks?

    2.  List as many possible renewable resources that you can think of.  When you are finished, compare your     list with your partners.

Let's take a look at your BioDiesel. 

Discuss what we did.

Finish our discussion of alternative fuel sources for automobiles.

Please read chapter 9, sections 2 and 3.  Do the questions on pages 263 and 270.


HW: Finish the book problems. Wrap-up you projects.  At this point you should have a majority of you project done.  Remember that you are handing in your projects and presenting on Wed.!