NAME______DATE______HR/GP______
MAY I SEE YOUR LICENSE, PLEASE?
EXPLORATION A (Copy Data Table on YOUR paper)
For this part of the lab you will need the following equipment:
1 toy car
play-doh
ramp
1 textbook
1 Workbook
1. Model a figure like the one in the following illustration out of your play-doh, make sure the mass of the clay is no more than 10g.
FIGURE 1
3-4cm
2. Place this figure on top of your toy car. Make sure to put it on top, not inside. Do not push it down so it sticks to the car.
3. Begin by placing 1 textbook under the ramp.
4. Put the car containing the clay figure on the ramp. The rear wheels of the
car should be placed over the top edge of the ramp.
5. The workbook should be placed at the bottom of the ramp.
It should look like the figure except the brick is replaced by the workbook and should be 1cm from the end of the ramp.
FIGURE 2
You will be observing what happens when the car containing the clay figure
travels down the ramp and collides with the textbook.
6. Make sure the car is lined up with the wheel off the edge of the ramp.
7. Allow the cart to travel down the ramp without adding any force (Don’t push it, just let it roll.)
8. Repeat this activity two times (3 trials total). Observe the movement of the clay figure and the car. Record your results in Table 1. Also record the displacement of the clay figure in relationship to the car (Measure from where the figure was on the car to the closest part of the figure to the car). Record these results in table 1.
TABLE 1 (Copy Table on YOUR paper)
Trial# /
Displacement From Car
(cm) /Direction of Displacement from Car (be specific)
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3
Exploration B (Copy Data Table on YOUR Paper)
For this part of the lab you will need the following equipment:
1 toy car
play-doh
ramp
2 text books
1 Workbook
9. Model a figure like the one in the following illustration out of your play-doh, make sure the mass of the clay is no more than 10g.
FIGURE 1
3-4 cm
10. Place this figure on top of your toy car. Make sure to put it on top, not inside. Do not push it down so it sticks to the car.
11. Begin by placing 2 textbooks under the ramp.
12. Put the car containing the clay figure on the ramp. The rear wheels of the
car should be placed over the top edge of the ramp.
13. The workbook should be placed at the bottom of the ramp.
It should look like the figure except the brick is replaced by the workbook and should be 1cm from the end of the ramp.
FIGURE 2
You will be observing what happens when the car containing the clay figure
travels down the ramp and collides with the textbook.
14. Make sure the car is lined up with the wheel off the edge of the ramp.
15. Allow the cart to travel down the ramp without adding any force (Don’t push it, just let it roll.)
16. Repeat this activity two times (3 trials total). Observe the movement of the clay figure and the car. Record your results in Table 1. Also record the displacement of the clay figure in relationship to the car (Measure from where the figure was on the car to the closest part of the figure to the car). Record these results in table 2.
TABLE 2 (Copy data table on YOUR paper)
Trial# /
Displacement From Car
(cm) /Direction of Displacement from Car (Be Specific)
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3
THE IDEA (Answer questions using complete sentences.)
From Exploration A
1. What generally happened to the figure as the car’s movement was stopped
by the textbook? What caused this to happen?
______
______
2. Explain how the motion of the car and the figure are different?
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______
3. Explain how the movements of the car and the figure are the same?
______
______
4. What were 3 forces acting on the just the car in this activity?
______
5. How did the 3 forces from #4 affect the motion of the car? Be sure to explain each force separately.
______
______
______
6. Explain (complete sentences) what would happen to a passenger in a car if the car is suddenly brought to a stop during a head-on collision.
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______
After Exploration B
7. What was the Independent (manipulated) variable in this lab?
______
8. How does the ramp level affect the car’s acceleration as it travels down the ramp?
______
10. How does the car’s acceleration affect the displacement of the clay figure?
______
11. Explain how the force exerted on a wall by two identical cars of equal mass but travelling at different speeds would compare. (remember, you are talking about the force with which they hit the wall)
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From Exploration A and B.
12. State Newton’s Laws of Motion. (Look them up)
1)______
______
2)______
3)______
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13. Explain how your observations during explorations A, B are explained by
Newton’s first and second Law’s of Motion.
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