Practice Quiz

AP Physics B Practice Exam - Question List

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56. Which of the following would be an advantage of using a 42 V battery in a car instead of a 12 V battery?
  1. It would allow carmakers to use fewer circuits.
  2. It would eliminate the use of generators and alternators.
  3. It would produce the same amount of power using less current.
  4. It would produce the same amount of power using more current.
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57. A balloon is rubbed against a sweater. Which of the following occurs because of the rubbing?
  1. destruction of charged particles on the balloon
  2. release of charged particles from the air in the balloon
  3. movement of negatively charged particles from one material to the other
  4. movement of positively charged particles from one material to the other
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58. A toy cart that has a weight of 10 N moves with a constant velocity of 2 m/s to the right on a horizontal table. According to Newton’s laws of motion, which of the following statements is correct?
  1. The table exerts a force of 10 N upward on the toy cart.
  2. The toy cart exerts a force of 10 N upward on the table.
  3. The toy cart exerts a force of 2 N downward on the table.
  4. The table exerts a force of 2 N to the right on the toy cart.
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59. The speed of sound in a particular gas is 900 m/s. A sound wave propagating in this material has a wavelength of 15 m. What is the frequency of this sound?
  1. 30 Hz
  2. 60 Hz
  3. 6,800 Hz
  4. 13,500 Hz
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60. Which of the following statements best describes an electromagnetic wave with a long wavelength?
  1. It has a low frequency and can travel in a vacuum.
  2. It has a high frequency and can travel in a vacuum.
  3. It has a low frequency and can only travel in a medium.
  4. It has a high frequency and can only travel in a medium.
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