F=ma demo lab - Shoreline School District

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Forces and masses and accelerations, oh my.

SWHS APPY1 Name:

1. Draw a picture of the cart and all its attachments:

The cart will now be gently and smoothly pulled to and fro on the track.

2. Predict (use pencil) what the force vs. time graph will look like below:

3. Predict what the acceleration vs. time graph will look like below:

Let’s run the trial and see how you did. Correct any errors!

4. Identify a single spot on the two graphs where:

A: The cart experiences maximum force and acceleration to the right

B: The cart is not moving

C: The cart experiences maximum force and acceleration to the left

Period: t(s) t(s)

5. Predict what the force vs. acceleration graph will look like and sketch it below.

F (N) a (m/s 2 )

6. Are the net force on an object and the acceleration of an object directly proportional?

7. What are the units of the slope?

8. What is the meaning of the slope?

9. The cart will now run with an extra mass attached to it. What do you think the new F vs. a graph will look like? Sketch it on the graph from #5.

10. Make the math expression that describes the graph.

11. What is another name for this equation?

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