Practice Quiz

AP Physics B Practice Exam - Question List

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111. What is the mass of an object weighing 63 N on Earth?
  1. 0.1 kg
  2. 6.3 kg
  3. 73 kg
  4. 617 kg
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112. Which of the following is least likely to result in the generation of static charge?
  1. peeling plastic wrap off a CD case
  2. combing dry hair with a plastic comb
  3. rubbing one’s shoes on a synthetic carpet
  4. drying one’s body with a towel after a shower
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113. The distance between Earth and the Moon was determined by measuring the time it took for light waves from Earth to travel to the Moon and back. Why was it not possible to use sound waves for this experiment?
  1. Sound waves must move through a substance.
  2. Sound waves would change frequency on the return to Earth.
  3. Sound waves move too slowly for the technique to be accurate.
  4. Sound waves move more slowly in Earth’s atmosphere than in space.
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114. Which of the following requires the greatest amount of heat?
  1. increasing the temperature of 1 kg of water from 0°C to 30°C
  2. increasing the temperature of 10 kg of water from 10°C to 20°C
  3. increasing the temperature of 20 kg of water from 19°C to 21°C
  4. increasing the temperature of 50 kg of water from 20°C to 21°C
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115. If heat is added to a liquid, which of the following occurs?
  1. The friction in the liquid increases.
  2. The size of the liquid molecules expands.
  3. The potential energy of the liquid changes.
  4. The molecular motion in the liquid increases.
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