Practice Quiz

HESI A2 Practice Test - Question List

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91. 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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92. The speed of sound in a particular gas is 900 m/s. A sound wave propagating in this material has a wavelength of 15 m. What is the frequency of this sound?
  1. 30 Hz
  2. 60 Hz
  3. 6,800 Hz
  4. 13,500 Hz
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93. Which of the following statements best describes an electromagnetic wave with a long wavelength?
  1. It has a low frequency and can travel in a vacuum.
  2. It has a high frequency and can travel in a vacuum.
  3. It has a low frequency and can only travel in a medium.
  4. It has a high frequency and can only travel in a medium.
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94. 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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95. Which of the following waves travels fastest?
  1. water waves in oceans
  2. seismic waves in rocks
  3. sound waves from a violin string
  4. electromagnetic waves from the Sun
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