Practice Quiz

MCAS Physics Exam Practice - Question List

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61. In an electromagnetic wave, an electric field exists perpendicular to a magnetic field, and both fields are perpendicular to the direction of travel of the wave. These characteristics indicate that an electromagnetic wave is which of the following wave types?
  1. gravitational
  2. longitudinal
  3. mechanical
  4. transverse
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62. Large amounts of current can damage a circuit. Which of the following changes in a series circuit will result in an increase in current?
  1. The voltage is halved and the resistance is halved.
  2. The voltage is halved and the resistance is doubled.
  3. The voltage is doubled and the resistance is halved.
  4. The voltage is doubled and the resistance is doubled.
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63. Based on Ohm’s law, which of the following statements explains what must happen when the voltage across a resistor is decreased?
  1. The resistance of the resistor increases.
  2. The resistance of the resistor decreases.
  3. The current through the resistor increases.
  4. The current through the resistor decreases.
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64. Which of the following is an example of a nonharmonic motion?
  1. particles colliding with one another
  2. a pendulum swaying back and forth
  3. a child bouncing up and down on a large spring
  4. waves created on the surface of a glass of water during an earthquake
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65. A ball has a mass of 0.1 kg and an initial velocity of 20 m/s. The ball is given an acceleration of 30 m/s2 for 5 s.What is the net force on the ball during acceleration?
  1. 0 N
  2. 3 N
  3. 10 N
  4. 15 N
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