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Properties of waves

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Question 12
a.

The diagram shows a transverse wave. A wave diagram showing a transverse wave oscillating up and down around a central horizontal equilibrium line. Arrow A is a vertical double-headed arrow representing the distance from the equilibrium line to a crest. Arrow B is a horizontal double-headed arrow representing the distance from one crest to the next adjacent crest. Arrow C is a horizontal double-headed arrow representing the distance from a crest to the adjacent trough. Arrow D is a vertical double-headed arrow representing the vertical distance from a crest to a trough. Which letter represents the wavelength of the wave?

  • A
  • B
  • C
  • D
[1]
b.

An observer in a harbor notices water waves hitting a sea wall. They count 25 wave crests hitting the wall in 20 seconds. Calculate the frequency of these waves and state the unit.

[3]
c.

Sound waves are longitudinal waves. Give another example of a longitudinal wave.

[1]
d.

Describe the differences between transverse and longitudinal waves in terms of the direction of oscillation and the direction of energy transfer.

[2]

Properties of waves Questions

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