Practice Quiz

Praxis II Physics Content Knowledge Exam Prep - Question List

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11. Which of the following is a main factor that affects the speed of a wave?
  1. the pitch of sound
  2. the loudness of sound
  3. the amplitude of the wave
  4. the properties of the medium
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12. A 600 g basketball, a 57 g tennis ball, a 46 g golf ball, and a 2.7 g table tennis ball are moving with the same velocity. Which ball has the greatest momentum?
  1. golf ball
  2. basketball
  3. tennis ball
  4. table tennis ball
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13. 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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14. Two identical beakers each contain 250 mL of water. The temperature of the water is 85°C in one beaker and 15°C in the other beaker. A drop of red food coloring is placed in each beaker at the same time. During the irst minute, which of the following is most likely to happen?
  1. The food coloring will spread out faster in the 85°C water than in the 15°C water.
  2. The food coloring will form a layer at the top of each beaker since it does not mix with water
  3. The food coloring will spread only halfway through the water in each beaker due to convection currents.
  4. The food coloring will settle faster at the bottom of the beaker containing 85°C water than at the bottom of the beaker containing 15°C water.
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15. Two oppositely charged objects are separated by a small distance. The objects are then moved three times farther apart from each other. Which of the following statements best describes what happens to the electrical force between the objects?
  1. The force of attraction increases.
  2. The force of attraction decreases.
  3. The force of attraction becomes zero.
  4. The force of attraction stays the same.
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