General Properties of Waves

The diagram represents a water wave.

• A

• B

• C

• D

What is the number of wave fronts per second that pass a fixed point?

• the amplitude of the wave

• the frequency of the wave

• the speed of the wave

• the wavelength of thewave

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?

• 0.2 m
• 0.4 m
• 1.6 m
• 1.0 m

The diagrams show two water waves P and Q that are travelling at the same speed on the surface of a pond. The diagrams are to the same scale.

• A

• B

• C

• D

A water wave passes into a region where the wave travels more slowly. As it passes into the slow region, what happens to the frequency and what happens to the wavelength of the wave?

• A

• B

• C

• D

The diagrams represent water waves in a tank. Which diagram represents a wave that changes speed?

• A

• B

• C

• D

The diagrams show water waves that move more slowly after passing into shallow water. Which diagram shows what happens to the waves?

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The diagram shows a side view of a water wave at a particular time. The diagram is drawn full size. Which statement about the wave is correct?

• The wave is longitudinal and the frequency can be measured from the diagram.

• The wave is longitudinal and the wavelength can be measured from the diagram.

• The wave is transverse and the frequency can be measured from the diagram.

• The wave is transverse and the wavelength can be measured from the diagram.

The diagram shows a water wave approaching a barrier with a gap. The wave reaches point P. P What is the name of the effect that causes the wave to reach point P?

• diffraction

• dispersion

• reflection

• refraction

The diagram represents circular wave fronts coming from point S. The wave fronts strike a barrier and are reflected so that they appear to come from point S₁. Which diagram shows the reflected wave fronts?

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