Practice Quiz

MCAS Physics Exam Practice - Question List

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46. Which of the following would cause a change in the speed of a mechanical wave?
  1. the wave moving through a liquid
  2. the wave moving from a solid to a gas
  3. the wave being made by a larger vibration
  4. the wave being made by a smaller vibration
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47.

Which of the following is the best example of work being done on an object?

  1. holding a 50 kg barbell
  2. lifting a bag of groceries
  3. keeping a board in place
  4. pushing on a car that will not move
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48. Which of the following statements best explains why there is no change in temperature once thermal equilibrium between two objects in contact is reached?
  1. Heat can flow between two objects in contact.
  2. Heat does not flow between objects in contact at the same temperature.
  3. Heat does not flow spontaneously from a cooler object to a warmer object.
  4. Heat flows by conduction, convection, and radiation when the temperatures are the same.
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49. A large spring is stretched horizontally between two people. One person wiggles the spring up and down at one end. The up-and-down vibration then moves along the spring to the other person. Which of the following types of wave is created in the spring?
  1. pressure wave
  2. transverse wave
  3. longitudinal wave
  4. nonmechanical wave
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50. Which of the following statements best describes the visible spectrum of light as seen by the human eye?
  1. The lowest frequency appears red, and the highest frequency appears violet.
  2. The lowest frequency appears red, and the highest frequency appears yellow.
  3. The lowest frequency appears green, and the highest frequency appears violet.
  4. The lowest frequency appears green, and the highest frequency appears yellow.
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