Gr 10 Physical Sciences Ch 7: Period and frequency
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Questions and Answers

What is the period of a wave?

  • The speed of the wave
  • The number of wavelengths per second
  • The distance between two consecutive peaks
  • The time taken by the wave to move one wavelength (correct)

    • What is the unit of frequency?

  • Hertz (correct)
  • Seconds
  • Wavelengths
  • Meters

    • What is the relationship between period and frequency?

  • Inversely proportional (correct)
  • Exponentially related
  • Directly proportional
  • Constant

    • What is the formula for frequency in terms of period?

    <p>f = 1/T</p> Signup and view all the answers

    What happens to the frequency of a wave when its period increases?

    <p>It decreases</p> Signup and view all the answers

    What is the main difference between the period and frequency of a wave?

    <p>One represents the number of wavelengths while the other represents the time for one wavelength</p> Signup and view all the answers

    If the frequency of a wave is 5 Hz, what is its period?

    <p>0.2 s</p> Signup and view all the answers

    Which of the following is a characteristic of the period of a wave?

    <p>It is a measure of the time taken for one wavelength</p> Signup and view all the answers

    If the period of a wave is increasing, what is happening to its frequency?

    <p>It is decreasing</p> Signup and view all the answers

    What is the unit of the period of a wave?

    <p>Seconds (s)</p> Signup and view all the answers

    What is the effect on the frequency of a wave if its period is halved?

    <p>The frequency is doubled</p> Signup and view all the answers

    A wave has a frequency of 20 Hz. What is the time taken for 5 complete cycles of the wave to pass a given point?

    <p>0.5 s</p> Signup and view all the answers

    If the period of a wave is directly proportional to its wavelength, what can be inferred about the frequency of the wave?

    <p>It is inversely proportional to the wavelength</p> Signup and view all the answers

    A wave has a period of 0.1 s. How many complete cycles of the wave pass a given point in 2 s?

    <p>20</p> Signup and view all the answers

    What is the period of a wave if 12 complete cycles of the wave pass a given point in 3 s?

    <p>0.25 s</p> Signup and view all the answers

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