A sound measured at 84dB is actually 100 times louder than a sound measured at 82dB.

Choose 1 answer

True

False

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What device do singers use on stage to make their voice heard throughout the theatre?

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microphone

megaphone

telephone

dictaphone

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When looking at sound waves, what tells us how loud a sound is?

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The distance between waves

The frequency of the wave

The amplitude of the wave

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When looking at sound waves, how do we know the pitch of a sound? 

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By looking at the height of the waves

By looking at the frequency of waves

By looking at the thickness of the line

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Answer incorrect

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