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grade 8 - sounds

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

anything that emits or causes sound

a)

sound

b)

source

c)

light

d)

medium

2.

where sound waves can be transferred

a)

medium

b)

source

c)

frequency

d)

detector

3.

third element that the sound waves can reach.

a)

receiver

b)

source

c)

frequency

d)

observer

4.

constant proportionally value that depends on the material

a)

modulus

b)

bulk modulus

c)

elastic modulus

d)

frequency

5.

it depends on the shape of the material

a)

bulk modulus

b)

elastic modulus

c)

modulus

d)

frequency

6.

sound travels fastest through ____, followed by______, and the slowest is ______.

a)

liquid, gas, solid

b)

solid, liquid, gas

c)

gas, solid, liquid

d)

solid, gas, waves

7.

gives the compactness of the particles as they occupy space in the structure of the substance

a)

elasticity

b)

solid

c)

density

d)

temperature

8.

allows sound to travel quickly because particles can easily compress and expand

a)

elasticity

b)

density

c)

solid

d)

temperature

9.

Austrian physicist,who studied about phenomenon in 1842

a)

Christian Doppler

b)

Anne Curie

c)

Albert Einstein

d)

Isaac Newton

10.

a disturbance that needs to travel into something

a)

light

b)

sounds

c)

source

d)

medium