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

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

<p>It decreases (A)</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 (C)</p> Signup and view all the answers

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

<p>0.2 s (B)</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 (A)</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 (D)</p> Signup and view all the answers

What is the unit of the period of a wave?

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

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