1. Science - Year 3/4A Summer 2 Quiz Answers PowerPoint
Sound
Sounds Spectacular
Session 6
Quiz Answers PowerPoint
© Original resource copyright Hamilton Trust, who give permission for it to be adapted as wished by individual users.
We refer you to our warning, at the foot of the block overview, about links to other websites.

2. Answers for the Quiz on
Sound

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

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

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

6. 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

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

8. 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

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

10. 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

11. 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

12. 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

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

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

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

16. 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

17. 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

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

19. 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

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

21. 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

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