Quiz
9702 AS Level Physics U14 Waves - Waves Basics Quiz
Perguntas do quiz (10)
1A sound wave moves with a speed of 320 m/s through air.
The variation with time of the displacement of an air particle due to this wave is shown in the graph.
Which statement about the sound wave is correct?
- AA The frequency of the wave is 500 Hz.
- BB The graph shows that sound is a transverse wave.
- CC The intensity of the wave will be doubled if its amplitude is increased to 0.4 mm.
- DD The wavelength of the sound wave is 1.28 m.
2A wave of frequency 15 Hz travels at 24 m/s through a medium.
What is the phase difference between two points 2 m apart?- AA There is no phase difference.
- BB They are out of phase by a quarter of a cycle.
- CC They are out of phase by half a cycle.
- DD They are out of phase by 0.8 of a cycle.
3A wave of amplitude a has an intensity of 3.0 W.m^2.
What is the intensity of a wave of the same frequency that has an amplitude 2a?- AA 4.2 W/m^2
- BB 6.0 W/m^2
- CC 9.0 W/m^2
- DD 12 W/m^2
4The graph shows the variation with time of displacement for two different waves X and Y.
Wave X has frequency f and amplitude A.
What is the frequency and what is the amplitude of wave Y?
- Af = 1/2 f, amplitude = 1/2 A
- Bf = 1/2 f, amplitude = 2 A
- Cf = 2f, amplitude = 1/2 A
- Df= 2f, amplitude = 2 A
5A loudspeaker emits a sound wave into a tube initially full of water.
A tap at the bottom of the tube is opened so that water slowly leaves the tube. For some lengths
of the air column in the tube, the sound heard is much louder.
The first loud sound is heard when the air column in the tube has length x.
The next time that a loud sound is heard is when the air column in the tube has length y.
What is the wavelength of the sound wave from the loudspeaker?
- A2x
- B4y
- C2(y – x)
- D4(y – x)
6A source of sound of frequency 1000 Hz directly approaches a stationary observer. The observer
measures the frequency of the received sound to be 1500 Hz. The speed of sound in still air is
330 m.s^–1.
What is the speed of the source of sound?- A110 m.s^–1
- B165 ms^–1
- C220 m.s^–1
- D330 ms^–1
7The graph shows how the intensity of electromagnetic radiation emitted from a distant star varies
with wavelength.
In which region of the electromagnetic spectrum is the radiation of greatest intensity?- Ainfrared
- Bvisible light
- Cultraviolet
- DX-ray
8Which statement concerning a stationary wave is correct?
- AAll the particles between two adjacent nodes oscillate in phase.
- BThe amplitude of the stationary wave is equal to the amplitude of one of the waves creating it.
- CThe wavelength of the stationary wave is equal to the separation of two adjacent nodes.
- DThere is no displacement of a particle at an antinode at any time.
9Which waves would best demonstrate diffraction through a doorway?
- Asound waves
- Bultraviolet waves
- Cvisible light waves
- DX-rays
10Two loudspeakers are placed near to each other and facing in the same direction.
A microphone connected to an oscilloscope is moved along a line some distance away from the
loudspeakers, as shown.
Which statement about the waves emitted by the loudspeakers is not a necessary condition for
the microphone to detect a fixed point along the line where there is no sound?
- AThe waves must be emitted in phase.
- BThe waves must be emitted with a similar amplitude.
- CThe waves must have the same frequency.
- DThe waves must have the same wavelength.
Informações
- Descrição
- Quiz 1 for AS Level Physics on Unit 14 Waves
- Autor
- Jeffrey Piggott
- Idioma
- English
- Visualizações
- 1.116
- Etiquetas
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