Sept. 17, 2012
Physics
Bellwork:
    1.  A car is moving with a uniform velocity of 25 m/s along a straight path.  What is the distance covered
         by the car in a time of 15 minutes?
    2.  A boat is traveling up a river.  If the speed-o-meter on the boat reads 18 km/hr and the flow of the   
         river is a constant 4 km/hr, how fast does the boat appear to travel relative to the shore?  How fast will          it appear to travel if it turns around?  Draw a vector diagram for the situation.
    3.  Explain the difference between speed and velocity.

-Pick up the graph sheet.  For each column, draw the shape of the appropriate graph.  Be sure to use pencil just in case a mistake happens to make it on the paper.  Do this independently, as it will give you a good idea of where you are at with the graphing of motion. 

-Discuss the graphs. 

-Discuss the method to determine the total distance traveled using a velocity/time graph.

-Wrap-up the graphing lab.  Each group member needs to turn in a lab.  Remember that your analysis questions count!

-At 12:45 I would like to stop and go over the homework problems.  Discuss any questions you may have.

-HW:  Pick-up the prelab for the free fall lab.  This will be checked tomorrow and we will go over the answers.

*****We will have our first Test on Thursday!  Make a note in your planners and make sure you start to study!

Physical Science A
Bellwork:
    1.  Explain the difference between speed and velocity.

    2.  What is the time required for a car traveling at 25 km/hr to travel 400 km?

    3.  A rocket travels 2800 km in a time of 20 minutes.  What is the average velocity of the rocket?

    4.  A boat is traveling up a river with current of 3 km/hr, how fast will it appear to travel if the speed-o-   
         meter reads 15 km/hr?

Objectives:
    -Use a graph of distance vs. time to determine the speed of an object.
    -Describe the motion of an object given a distance vs. time graph.

Go over and check the homework.  Pick up a whiteboard!!

Motion Man activity. 

Go to the web site:
http://phet.colorado.edu/en/simulation/moving-man  

Use the website to complete the activity on graphing motion.

HW: Motion Man Activity

**We are having a test over motion on Thursday, time to study!!!!****