Chapter 6 Sounds

Question 1

True or false?

sound waves move out word from their source in our direction

Answer 1

True

Question 2

True or false

sound waves travel at the same speed through all kinds of matter?

Answer 2

False

Question 3

True or false

sound waves spreads out, as they move further away from the source of their vibration?

Answer 3

True

Question 4

True or false

A rapid back and forth movement is called an echo?

Answer 4

False

Question 5

Which state of matter does travel the fastest?

Answer 5

Solid

Question 6

What characteristic of sound helps us identify different peoples voices?

Answer 6

Quality

Question 7

What characteristic of sound depends on how much force is used to make an object vibrate?

Answer 7

Volume

Question 8

What characteristic of sound depends on how fast the source of sound is vibrating?

Answer 8

Pitch

Question 9

Sound is a form of _________ that you can hear?

A. Energy
B. Matter

Answer 9

Energy

Question 10

Sound is caused by a moving object that is _________?

A. Reflecting
B. Vibrating

Answer 10

Vibrating

Question 11

Large hard smooth surfaces _________ sound waves?

A. Absorb
B. Reflect

Answer 11

Reflect

Question 12

Rough soft or uneven surfaces __________ sound waves?

A. Absorb
B. Reflect

Answer 12

Absorb

Question 13

A sound wave that reflects clearly enough to be hurt again is called?

A. And echo
B. A vibration

Answer 13

Echo

Question 14

What are three ways you can make an object vibrate?

Answer 14

Blowing on it

Hitting it

Rubbing it