Unit 3.1 General wave properties

Which waves are longitudinal?

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• diffraction

• reflection

• refraction

• vibration

• diffraction

• dispersion

• reflection

• refraction

Which is a unit of wavelength?

• hertz

• metre

• metre per second

• second

• A

• B

• C

• D

Sound waves of frequency 2.0 kHz travel through a substance at a speed of 800 m/s.

What is the wavelength of the waves?

• 0.40 m

• 2.5 m

• 400 m

• 1600 m

The frequency of a wave is doubled. The speed of the wave does not change.

What happens to the wavelength of the wave?

• It becomes four times as large.

• It does not change.

• It doubles.

• It halves.

In a shallow tank, a water wave moves towards a barrier with a narrow gap.

Which diagram shows the wave beyond the barrier?

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