2008 AP Physics C物理C—Mechanics力學真題系列之Practice Exam選擇題免費下載

歷年AP Physics物理學系列

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2008 AP Physics C Mechanics Practice Exam Multiple Choices?Free Download

2008 AP 物理C力學模考選擇題部分免費下載

此套題僅?Section II含有簡答題，

共計時45分鐘，共35題

占總分50%

可以使用計算器

僅可使用鉛筆

考試時會提供常用公式列表

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部分真題預覽：

5）An object of mass 100 kg is initially at rest on a horizontal frictionless surface. At time t = 0, a horizontal force of 10 N is applied to the object for 1 s and then removed. Which of the following is true of the object at time t = 2 s if it is still on the surface?

1. It is at the same position it had at t = 0, since a force of 10 N is not large enough to move such a massive object.
2. It is moving with constant nonzero acceleration.
3. It is moving with decreasing acceleration.
4. It is moving at a constant speed.
5. It has come to rest some distance away from the position it had at t = 0.

10）A toy spacecraft is launched directly upward. When the toy reaches its highest point, a spring is released and the toy splits into two parts with masses of 0.02 kg and 0.08 kg, respectively. Immediately after the separation, the 0.02 kg part moves horizontally due east. Air resistance is negligible. True statements about the 0.08 kg part include which of the following?

1. It could move north immediately after the spring is released.
2. It takes longer to reach the ground than does the 0.02 kg part.
3. It strikes the ground farther from the launch point than does the 0.02 kg part.

1. None
2. I only
3. III only
4. I and II only
5. II and III only

13）A comet moves in the Sun’s gravitational field, following the path shown above. What happens to its angular momentum as it moves from point X to point Y ?

1. It increases steadily.
2. It remains constant.
3. It decreases steadily.
4. It increases as it approaches the Sun and decreases as it moves away from the Sun.
5. It decreases as it approaches the Sun and increases as it moves away from the Sun.