sound

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1.
1 point
A string can telephone works best when the string is........
2.
1 point
You would want to wear hearing protection if you worked as a..........
3.
1 point
Echolocation is used by dolphins and dogs.
4.
1 point
A high frequency sound will have a high pitch.
5.
1 point
The thickest string on the guitar has the highest pitch.
6.
1 point
If something is soundproof you can not hear any noise coming out.
7.
1 point
Sound travels best through solids because the molecules are so close together.
8.
1 point
Hearing damage happens when.............
9.
1 point
communicate means to..............
10.
1 point
Sound travels through the string in a tin can telephone through........
11.
1 point
Sign language is a good communication tool for deaf people.
12.
1 point
Rumbling thunder has a low pitch sound.
13.
1 point
The first part of the ear that a sound reaches is the..........
14.
1 point
Dolphins are the only animals that use echolocation.
15.
1 point
A mouse squeaking would be a low pitch sound.
16.
1 point
Sound travels fastest through........
17.
1 point
Molecules in a gas are .........
18.
1 point
Echolocation works by........
19.
1 point
People can hear sounds that are only 20 decibels.
20.
1 point
A decibel measures the weight of something.
21.
1 point
40 decibels will damage your ears.
22.
1 point
People can move their ears to focus on sounds just like dogs can.
23.
1 point
Your ear has one bone in it.
24.
1 point
People can hear higher frequency sounds than dogs.
25.
1 point
Animals use sound to...........