Practice Quiz

AP Physics B Practice Exam - Question List

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36. Which of the following actions would increase the current through a circuit component?
  1. decreasing the power in the component
  2. increasing the resistance of the component
  3. increasing the voltage across the component
  4. placing another identical component in series in the circuit
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37. The specific heat of wood is about 1,700 J/ kg• °C. How much energy is required to heat a 12 kg piece of wood from 20°C to 30°C?
  1. 1,400 J
  2. 17,000 J
  3. 204,000 J
  4. 612,000 J
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38. Which of the following is designed to produce an electromagnetic wave?
  1. elastic cord
  2. laser pointer
  3. metal spring
  4. ripple tank
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39. Two full 2 L bottles of water are placed on a table. Bottle 1 was just removed from a refrigerator; bottle 2 is at room temperature.Which of the following statements describes the average molecular kinetic energy and the speed of the molecules in each bottle?
  1. Bottle 1 has the same average molecular kinetic energy as
    bottle 2, and the molecules have the same average speed in both bottles.
  2. Bottle 1 has a smaller average molecular kinetic energy than
    bottle 2, and the molecules have the same average speed in both bottles.
  3. Bottle 1 has a smaller average molecular kinetic energy than
    bottle 2, and the molecules have a slower average speed in bottle 1 than in bottle 2.
  4. Bottle 1 has a larger average molecular kinetic energy than
    bottle 2, and the molecules have a slower average speed in bottle 1 than in bottle 2.
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40. Which of the following statements describes a result of Earth’s gravitational pull on the Moon?
  1. The Moon has craters.
  2. The Moon orbits around Earth.
  3. The Moon lacks an atmosphere.
  4. The Moon has less gravity than Earth.
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