KS3 Unit 8l – Sound and Hearing 1© NTScience.co.uk 2005

Sound

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Q1. What form of energy transfer is

detected by the ear?

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A1. Sound

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Q2. Name a musical instrument that has a

tightly stretched membrane

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A2. A drum

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Q3. Which family of musical instruments are

struck or hit?

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A3. Percussion instruments

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Q4. Give another word for the loudness of a

sound

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A4. Volume

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Q5. What type of musical instruments are the violin, guitar, viola

and double bass?

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A5. Stringed instruments

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Q6. What is the unit of sound loudness?

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A6. Decibel

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Q7. Name a device that converts sound energy

to electrical energy.

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A7. A microphone

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Q8. Name a device that converts electrical

energy to sound energy.

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A8. Loudspeaker

buzzer

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Q9. What do we call a reflected sound?

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A9. An echo

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Q10. What determines the pitch of a sound, (how many complete

waves there are every second)?

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A10. The frequency

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Q11. What do we call the height of a wave - half the peak to peak

value?

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A11. The amplitude

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Q12. What do we call the time interval

between one wave peak and the next?

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A12. The period

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Q13. What does an object do to emit a

sound?

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A13. Vibrate

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Well Done!Now check your score