Practice Quiz

AP Physics B Practice Exam - Question List

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126. A sealed glass container holds molecules of nitrogen gas. The nitrogen molecules have increasing velocities.Which of the following will make the molecules move faster?
  1. bonding the molecules together
  2. transferring heat to the molecules
  3. expanding the volume of the container
  4. decreasing the pressure in the container
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127. The tendency of a stationary object to resist being put into motion is known as
  1. acceleration.
  2. inertia.
  3. weight.
  4. velocity.
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128. In a copper wire, a temperature increase is the result of which of the following?
  1. an increase in the size of the copper particles
  2. a decrease in the mass of the copper particles
  3. an increase in the motion of the copper particles
  4. a decrease in the distance between the copper particles
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129. A sailboat travels 35 km in 5 hr. Which of the following describes the motion of the sailboat?
  1. Its momentum is 7 km/hr.
  2. Its acceleration is 7 km/hr.
  3. Its displacement is 7 km/hr.
  4. Its average speed is 7 km/hr.
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130. Why does a plastic rod have a negative charge after being rubbed with a piece of fur?
  1. The fur gives up protons to the rod.
  2. The rod gives up electrons to the air.
  3. The fur gains protons from the rod.
  4. The rod gains electrons from the fur.
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