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WorksheetsSound absorption
Total questions: 10
Worksheet time: 5mins
How is sound produced?
By the vibration of particles
y the transfer of particles
The reflection of sound waves off of a hard surface can create _________?
An echo
A wave
Soft surfaces _______ sound waves.
Reflect
Absorb
Why is the school library covered with carpet?
So everyone can make a lot of noise
because it looks good
to help absorb sounds so it can stay noisy
to help absorb sounds to keep it quiet
What type of materials REFLECT sound?
hard materials
both hard and smooth materials
porous materials
smooth materials
6. If you walk into an empty gym and yell, why would you hear an echo?
The sound waves are bouncing off the hard smooth gym walls.
The gym walls are soft and uneven.
The sound waves are being absorbed by the hard smooth walls.
The gym walls are really clean.
Why is absorption of sound important ?
Our ears can be damaged if the intensity of sound is too high
To ensure high frequency sounds
To ensure high amplitude sounds
Choose an example which shows where sound absorbing materials would be useful.
On the top of a skyscraper
Between the walls in rooms in a house
Which types of materials are good absorbers of sound
Thin
Thick
2. Which types of materials are good reflectors of sound
Thin
Thick
Hard and flat
