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

Questions

1. 1. What is the volume of a sound?

   • how far away it is
   • how loud or quiet it is
   • how high or low it is
   • how fast it travels
   Check

2. 2. What makes a sound louder?

   • faster vibrations only
   • bigger vibrations
   • no vibrations
   • smaller vibrations
   Check

3. 3. What unit is used to measure the volume of sound?

   • the newton (N)
   • the degree (°C)
   • the decibel (dB)
   • the metre (m)
   Check

4. 4. What do we use to measure sound volume?

   • a forcemeter
   • a thermometer
   • a sound level meter
   • a loudspeaker
   Check

5. 5. How loud must a sound be to damage our ears?

   • louder than 10 dB
   • louder than 85 dB
   • louder than 30 dB
   • any sound at all
   Check

6. 6. What is pitch?

   • how loud a sound is
   • how high or low a sound is
   • how long a sound lasts
   • how far a sound goes
   Check

7. 7. What kind of vibrations make a high-pitched sound?

   • no vibrations
   • big vibrations
   • slow vibrations
   • fast vibrations
   Check

8. 8. What kind of vibrations make a low-pitched sound?

   • sideways vibrations
   • slow vibrations
   • small vibrations
   • fast vibrations
   Check

9. 9. Which sound is high-pitched?

   • a big drum
   • thunder
   • a whistle
   • a cow mooing
   Check

10. 10. Which animal uses very low-pitched sounds that humans cannot hear?

    • the bird
    • the bat
    • the mouse
    • the elephant
    Check

11. 11. Which animal uses very high-pitched sounds that humans cannot hear?

    • the lion
    • the bat
    • the elephant
    • the cow
    Check

12. 12. The singers sing more quietly. How do the vibrations change?

    • They get faster.
    • They get smaller.
    • They stop.
    • They get bigger.
    Check

13. 13. The singers sing higher notes. How do the vibrations change?

    • They get faster.
    • They get slower.
    • They get bigger.
    • They get smaller.
    Check

14. 14. Describe the vibrations of a loud, low-pitched sound.

    • small and fast
    • small and slow
    • big and fast
    • big and slow
    Check

15. 15. Zara measured a clock through materials: water 45 dB, metal 65 dB, wood 60 dB, air 40 dB. Which did sound travel through best?

    • air
    • water
    • metal
    • wood
    Check

16. 16. Marcus's group used ticks to record loudness. How could they make more accurate measurements?

    • guess
    • use a ruler
    • use more ticks
    • use a sound level meter
    Check