AP Physics -Kirby
Kinematics
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You travel 200m in 2 sec. What is your average speed? ___________
You travel 400m in 4 sec. What is your average speed? ___________
You travel 200m in 1 sec. What is your average speed? ___________
You travel 200m in 0.5sec. What is your average speed? ___________
You travel 200m in 5 sec. What is your average speed? ___________
Do you know your instantaneous speed at any point during the previous 5 trips? ___________
You travel from Point A to Point B, which are 400m apart, in 10 seconds. You then return from B to
A.…..
a. In order to have an average speed of 20m/s over the entire journey, what average speed must you
have as you move from B to A. ___________
b. In order to have an average speed of 40m/s over the entire journey, what average speed must you
have as you move from B to A. ___________
c. In order to have an average speed of 60m/s over the entire journey, what average speed must you
have as you move from B to A. ___________
d. In order to have an average speed of 80m/s over the entire journey, what average speed must you
have as you move from B to A. ___________
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Displacement
(m)
4
0
-4
0
2
4
6
8
10
12
14
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8. The above graph shows the motion of a single object along a straight line…..
a. How many times does the object have a velocity of zero? ___________
b. How many times is the object stationary? ___________
c. What part of the graph can be ignored, and why? ___________
d. Find the slope of each ‘part’ of the graph. ___________
e. What is the maximum (greatest value)velocity of the object? ___________
f. What is the maximum (greatest value) speed of the object? ___________
g. What is the minimum (least value) velocity of the object? ___________
h. What is the minimum (least value)speed of the object? ___________
i. What is the average speed over the first 9 seconds? ___________
9. Draw a graph of distance (y-axis) of the above object against time (x-axis).
10. Draw a graph of velocity (y-axis) of the above object against time (x-axis).
11. Draw a graph of speed (y-axis) of the above object against time (x-axis).
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Time (s)