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- 1. Multiple Choice
What does muffle mean?
To make a sound louder
To make a sound softer
To make a sound higher
- 2. Multiple Choice
Why do we need to muffle some sounds?
To protect our ears
To hurt our ears
To make sounds louder
- 3. Multiple Choice
What is he wearing?
Ear silencers
Earphones
Ear defenders
- 4. Multiple Choice
A person needs ear defenders for which job?
Builder
Teacher
Taxi driver
- 5. Multiple Choice
What factor needs to change when we test how materials muffle sounds?
The sound source
The materials
The volume
- 6. Multiple Choice
Which factors cannot change when we test how different materials muffle sound? (choose THREE answers)
The volume
The materials
The sound source
The room we do the test in
- 7. Multiple Choice
we fit silencers to cars, trucks and motor cycles to muffle sounds
true
false
- 8. Multiple Choice
cotton and wool materials are not good to muffle sound
true
false
- 9. Multiple Choice
In buildings we use carpets and curtains to stop noise.
true
false
- 10. Multiple Choice
Some people work in very noisy places so they wear ear defenders.
false
true
- 11. Multiple Choice
Muffle sounds mean to make sounds quieter and less clear.
true
false
- 12. Multiple Choice
How can we make a sound louder?
We can muffle the sound
We can move away from the sound source
We can move closer to the sound source
- 13. Multiple Choice
Soft sounds are __________________ sounds.
loud
quiet
low
- 14. Multiple Choice
How can we make a sound softer?
We can muffle the sound
We can trap the sound
We can move closer to the sound source
- 15. Multiple Choice
Does the picture show something that makes a loud or soft sound?
loud
soft
- 16. Multiple Choice
Does the picture show something that makes a loud or soft sound?
loud
soft
- 17. Multiple Choice
Does the picture show something that makes a loud or soft sound?
loud
soft
- 18. Multiple Choice
Does the picture show something that makes a loud or soft sound?
loud
soft
- 19. Multiple Choice
Does the picture show something that makes a loud or soft sound?
loud
soft
- 20. Multiple ChoiceSoft surfaces _______ sound waves.ReflectAbsorb
- Answer choicesTagsAnswer choicesTags