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Sound is a form of what
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Sounds are made when things do what
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Which of the following can sound pass through
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solids
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liquids
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vacuum
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gases
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The speed of sound is faster through materials that have particles that are closer together - true or false
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sound energy moves in all directions because the particles move in all directions unless something stops them - true or false
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the unit of frequency is called what
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Sound waves with a high frequency produce sounds with a
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The amplitude refers to what about a sound wave
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the loudness of a sound depends on what
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louder sounds have more or less energy
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louder sounds have bigger or smaller amplitudes
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sound waves travel through what before entering the ear
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sound waves cause the ear drum to do what
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the vibrations are passed onto the what
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sounds cause what to vibrate
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the ear drum
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the ear lobe
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the ear canal
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people who are exposed to loud noises for long periods of time are at risk of what
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to avoid loud noise damage people often wear what
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hats
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ear protection
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glasses
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a tie
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unpleasant sound is often called what
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your hearing can get bad due to which of the following
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getting old
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listening to loud music
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illness
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mums nagging
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he loudness of a sound is measured in
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decibels (dB)
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volts (V)
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amps (A)
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watts (w)
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The threshold of hearing is what
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soft materials do what
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reflect sound
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absorb sound
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what materials are used for sound proofing
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hard materials
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soft materials
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light energy can travel through space (a vacuum) but sound energy cannot - true or false
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which travels faster light or sound
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light travels at what speed
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sound travels at what speed
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about 330 meters per second
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about 3000 meters per second
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about 3 meters per second
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both light waves and sound waves can be reflected - true or false
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when sound waves are reflected we call it what