Pregunta 1
Pregunta
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?
Respuesta
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A 0.40 m
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B 2.5 m
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C 400 m
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D 1600 m
Pregunta 2
Pregunta
The frequency of a wave is doubled. The speed of the wave does not change.
What happens to the wavelength of the wave?
Pregunta 3
Pregunta
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?
Pregunta 4
Pregunta
Which row shows the natures of light waves, sound waves and X-rays?
Pregunta 5
Pregunta
Which is a unit of wavelength?
Respuesta
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A hertz
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B metre
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C metre per second
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D second
Pregunta 6
Pregunta
The diagrams show water waves that move more slowly after passing into shallow water.
Which diagram shows what happens to the waves?
Pregunta 7
Pregunta
What is the number of wavefronts per second that pass a fixed point?
Respuesta
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A the amplitude of the wave
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B the frequency of the wave
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C the speed of the wave
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D the wavelength of the wave
Pregunta 8
Pregunta
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.
Which wave has the greater amplitude and which wave has the greater frequency?
Pregunta 9
Pregunta
The diagrams represent water waves in a tank.
Which diagram represents a wave that changes speed?
Pregunta 10
Pregunta
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?
Respuesta
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A The wave is longitudinal and the frequency can be measured from the diagram.
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B The wave is longitudinal and the wavelength can be measured from the diagram.
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C The wave is transverse and the frequency can be measured from the diagram.
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D The wave is transverse and the wavelength can be measured from the diagram.
Pregunta 11
Pregunta
The diagram shows a water wave approaching a barrier with a gap.
The wave reaches point P.
What is the name of the effect that causes the wave to reach point P?
Respuesta
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A diffraction
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B dispersion
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C reflection
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D refraction
Pregunta 12
Pregunta
The diagram represents a water wave.
Which row shows the amplitude and the wavelength of the wave?
Pregunta 13
Pregunta
Which row correctly defines a type of wave and gives a correct example?
Pregunta 14
Pregunta
A water wave moves quickly in deep water.
The wave now enters shallow water and its speed decreases.
Which row shows what happens to the frequency of the wave, and what happens to the wavelength of the wave?
Pregunta 15
Pregunta
The diagram shows a water wave passing through a gap in a harbour wall. The wavefronts curve round the wall and reach a small boat in the harbour.
What is the name of this curving effect, and how can the gap be changed so that the wavefronts do not reach the boat?
Pregunta 16
Pregunta
A small boat in a harbour is protected from waves on the sea by harbour walls.
Some waves can curve round the harbour walls and reach the boat.
What is the name of this effect?
Respuesta
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A diffraction
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B dispersion
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C reflection
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D refraction
Pregunta 17
Pregunta
The diagram shows four waves drawn to the same scale.
Which statement is correct?
Respuesta
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A The amplitude of wave P is the same as the amplitude of wave R.
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B The amplitude of wave S is double the amplitude of wave Q.
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C The wavelength of wave Q is double the wavelength of wave P.
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D The wavelength of wave S is the same as the wavelength of wave Q.
Pregunta 18
Pregunta
Which waves are longitudinal?
Pregunta 19
Pregunta
Waves travel more quickly on the surface of water when the water is deep.
A stone is dropped at point X into a pool of varying depth. The diagram shows the first wavefront on the surface of the pool.
The region between X and which labelled point is likely to be the deepest?
Pregunta 20
Pregunta
Radio waves are received at a house at the bottom of a hill.
The waves reach the house because the hill has caused them to be ........
Respuesta
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A diffracted.
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B radiated.
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C reflected.
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D refracted.