11575549
Descripción
Test por Jeffrey Piggott, actualizado hace más de 1 año
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Creado por Jeffrey Piggott
hace alrededor de 7 años
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Pregunta 1
Pregunta
Sound is caused by:
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transverse waves
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longitudinal vibrations
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heat
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air
Pregunta 2
Pregunta
Elephants can make sounds of high intensity.
These sounds will be:
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quiet
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high pitched
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soft
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loud
Pregunta 3
Pregunta
The tweeting sound made by a small bird has a pitch that is:
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soft
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high
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low
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quiet
Pregunta 4
Pregunta
If a piece of metal is vibrating at 2 cycles per second, it:
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makes one complete backward and forward movement each second
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makes two complete backward and forwards movements each second.
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makes four complete backward and forwards movements each second.
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takes two seconds for it to make one complete backward and forward movement.
Pregunta 5
Pregunta
The piece of equipment that is used to show sounds as waves is called:
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an oscilloscope.
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a microphone.
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an amplitude.
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a trace.
Pregunta 6
Pregunta
Frequency:
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is the height of the waves.
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is the number of waves passing a point each second.
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is measured in metres.
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affects how loud a sound is.
Pregunta 7
Pregunta
A loud sound is produced by waves with:
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a high pitch.
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a high frequency.
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a large amplitude.
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a small amplitude
Pregunta 8
Pregunta
Which statement is not true?
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Light and sound can both be used to send information.
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Sound travels at the same speed as light.
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Light travels faster than sound.
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Some animals use light and sound to communicate.
Pregunta 9
Pregunta
Starting with the slowest, which of the following is the correct order for the speeds of sound travelling through materials?
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solid, gas, liquid
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gas, vacuum, liquid, solid
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solid, gas, vacuum
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gas, liquid, solid
Pregunta 10
Pregunta
Sound cannot travel though empty space because:
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air particles stay still.
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there are no particles to vibrate.
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particles pass on vibrations.
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electricity sends it through the air.
Pregunta 11
Pregunta
Sound and light energy travel from one place to another as waves.
When this happens we say that the energy is:
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transpired.
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transferred.
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transported.
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transcommunicated.
Pregunta 12
Pregunta
The ear changes sound energy into:
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light energy.
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electrical energy.
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noise energy.
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heat energy.
Pregunta 13
Pregunta
Which part of the ear changes sound energy into another form of energy?
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the cochlea
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the eardrum
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the auditory nerve
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the small middle ear bones
Pregunta 14
Pregunta
Which of the following statements about animals is NOT true?
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Dogs can hear whistles that we cannot hear.
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Dolphins and whales use high-pitched clicks to communicate.
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All animals have the same range of hearing.
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Bats use their hearing to hunt prey and avoid objects.
Pregunta 15
Pregunta
Which of the following statements is true?
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An echo is caused when sound waves are absorbed by a material.
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An echo is caused when sound waves are reflected.
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Materials that are good reflectors of sound are called sound insulators.
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Materials that are good at absorbing sound are called insulators.
Pregunta 16
Pregunta
Which of the following is used to measure the loudness of a sound?
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a noiseometer
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a decibelometer
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a sound meter
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a voltmeter
Pregunta 17
Pregunta
Soundproofing works when:
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windows in a room are left open.
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sounds pass easily through the walls.
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sounds are absorbed by certain materials.
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the walls in a room are painted black.
Pregunta 18
Pregunta
Look at these drawings of waves.
Which statement is true?
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Y has the highest amplitude.
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Y has the longest wavelength.
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X has the highest frequency.
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Y has the highest frequency.
Pregunta 19
Pregunta
Which statement is not true?
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Quiet sounds can harm the ears.
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The sound near to disco speakers can be louder than a road drill.
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The eardrum can be damaged by personal stereos.
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A noisy factory can permanently damage the ears.
Pregunta 20
Pregunta
Sound is less likely to get out of a room which has:
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a wooden floor.
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black walls.
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soft curtains and a carpet.
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spotlights.
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