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Science 5 · Unit 2: Sound · Cambridge Primary Science Stage 5

2.3 Changing the volume of sound

16 questions · e.g. What does 'muffle' mean?

Practice

Questions

  1. 1. What does an amplifier do?

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  2. 2. In a sound system, where does the sound come out?

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  3. 3. Which three parts make a sound system?

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  4. 4. Why is a clock louder when you listen through a cardboard tube?

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  5. 5. The clock is moved further from your ear. What happens to the sound?

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  6. 6. What does 'muffle' mean?

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  7. 7. What do workers in noisy places wear to protect their ears?

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  8. 8. What do we fit to cars and motorbikes to muffle engine noise?

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  9. 9. How do we muffle noise in buildings?

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  10. 10. What is noise pollution?

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  11. 11. Which material is likely to muffle sound best?

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  12. 12. In the muffling test, the material packed around the sound source is changed. What is this variable?

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  13. 13. In the muffling test, the sound source stays the same. What is this?

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  14. 14. Why must you stand the same distance from the box each time?

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  15. 15. How could Sofia use a sheet of card to hear sounds louder?

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  16. 16. How did the oldest music players with no electronic parts make music louder?

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