Practice Quiz

AP Physics B Practice Exam - Question List

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121. Which of the following can carry light waves but not sound waves?
  1. air
  2. steel
  3. water
  4. vacuum
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122. A crane lifts two 100 kg loads of building materials to the top of a building under construction. The irst load is lifted in 10 s and the second load is lifted in 13 s. Which of the following statements best compares the work and power expended by the crane lifting the two loads?
  1. The crane does more work and expends more power for the irst lift.
  2. The crane does the same work and expends the same power for each lift.
  3. The crane does the same work for each lift but expends more power for the irst lift.
  4. The crane does more work in the second lift but expends the same power for each lift.
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123. A 9 kg model airplane lies horizontally at a constant speed. If the plane suddenly dives from its altitude of 50 m and levels off at 20 m, how much potential energy does it lose in the dive?
  1. 450 J
  2. 1800 J
  3. 2700 J
  4. 9000 J
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124. Ultraviolet light has a shorter wavelength than visible light. Which of the following is another way ultraviolet light can be compared to visible light?
  1. Ultraviolet light has a lower frequency than visible light.
  2. Ultraviolet light has a higher frequency than visible light.
  3. Ultraviolet light travels faster than visible light.
  4. Ultraviolet light travels slower than visible light.
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125. To calculate the momentum of a pickup truck with a velocity of 25 m/s east, it is also necessary to know which of the following?
  1. time elapsed
  2. drive force of the motor
  3. mass of the pickup truck
  4. distance that the pickup travels
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