Practice Quiz

HESI A2 Practice Test - Question List

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96. Which of the following can carry light waves but not sound waves?
  1. air
  2. steel
  3. water
  4. vacuum
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97. 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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98. A pitcher throws a 0.15 kg baseball at 40 m/s towards the catcher. What is the momentum of the baseball while moving at 40 m/s?
  1. 0.025 kg • m/s
  2. 3.8 kg • m/s
  3. 6.0 kg • m/s
  4. 270 kg • m/s
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99. An astronaut drops a 1.0 kg object and a 5.0 kg object on the Moon. Both objects fall a total distance of 2.0 m vertically. Which of the following best describes the objects after they have fallen a distance of 1.0 m?
  1. They have each lost kinetic energy.
  2. They have each gained the same amount of potential energy.
  3. They have each lost the same amount of potential energy.
  4. They have each gained one-half of their maximum kinetic energy.
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100. Which of the following changes occurs as a solid is heated?
  1. The kinetic energy of the solid decreases.
  2. The average density of the solid increases.
  3. The specific heat capacity of the solid decreases.
  4. The average molecular speed in the solid increases.
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