1. Science - Year 3/4A Summer 2
Sound
Sounds Spectacular
Session 6
Quiz PowerPoint
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2. Quiz on
Sound

3. On each slide there is a question and some possible answers
On each slide there is a question and some possible answers. Each answer has a letter. Choose the letter that is above the right answer and write it on your sheet.
Some are quite easy, others are a bit harder. If you’re not sure, give it your best guess.

4. 1. Sound is made when something …
evaporates B
vibrates C
extends

5. 2. Sound is … A
a type of material B
a type of gas C
a type of energy

6. a rapid repeated movement
3. Vibration is … A B C
an electrical wave
a rapid repeated movement
a coded message

7. 4. When an object vibrates you can hear it but …
you can never see it vibrating
you can never feel it vibrating
sometimes you can see it and feel it vibrating

8. 5. When an object vibrates, the air particles all around it …
bump into each other
freeze
Break down

9. 6. Bumping air particles spread outwards from a vibrating object
6. Bumping air particles spread outwards from a vibrating object. This is called … A B C
a sound wave
a hearing wave
an impulse

10. A B C sensors probes ears
People and animals have sound detectors. These are called … A
sensors B
probes C
ears

11. Animals with big ears hear better because …
they have bigger brains B
their ears can gather in more sound waves C
they are closer to the ground

12. 9. Sound waves (vibrations) can …
travel through gases and liquids but not solid things B
only travel through gases C
travel through solids, liquids and gases

13. 10. When sound waves enter your ear, they cause your to vibrate
Choose the correct one to go in the gap A B C
ear drum
brain
hair

14. 11. When your ear drum vibrates (inside your ear), a message is sent to …
your eyes B
your other ear C
your brain

15. 12. Sound waves travel fastest through …
solids B
liquids C
gases

16. it is completely silent
13. In space … A
sounds are deafening B
it is completely silent C
sound is distorted

17. A transmit C locate B condense
14. This is because there is no air (or any other gases) in space. Sound can only travel when there are particles to vibrate. The particles the sound.
Choose the correct word to go in the gap A
transmit C
locate B
condense

18. A barrier C container B medium
15. The particles that transmit sound can be solids, liquids or gases. All of these are a that sound can travel through. A
barrier C
container B
medium

19. 16. Sound is measured in … C A B
Decibels
Kilowatts
Newtons

20. 17. A sound will be louder if …
2 of these answers are true and 1 is false. Write down the letter of the answer that is false. A B C
you are close to the source of the sound
more energy is used to produce the sound
the vibrating object is big

21. 18. The pitch of a sound is … A C B how loud it is how clear it is
how high or low it is

22. 19. Which of these factors will not affect the pitch of a sound?
The length of the vibrating object B
The thickness of a vibrating string D
The tightness of a vibrating string E
The size of a vibrating object C
The shininess of a vibrating object

23. 20. Which of these instruments can play the lowest notesB C D