Sound 5

Question 1

What is the ability of sound to cause vibrations called?

Answer 1

sound energy

Question 2

What are the rapid back and forth movements that create sound?

Answer 2

vibrations

Question 3

What is a surge of sound energy that travels through matter?

Answer 3

a sound wave

Question 4

The number of times a sound source vibrates in one second is the __________.

Answer 4

frequency

Question 5

What is the distance between one point on one wave to the same point on the next wave called?

Answer 5

wavelength

Question 6

What is the process of making sound louder called?

Answer 6

amplification

Question 7

The highness or lowness of a sound is its __________.

Answer 7

pitch

Question 8

What is the height of a wave called?

Answer 8

amplitude

Question 9

What is the unit that is used to measure the loudness of sound?

Answer 9

Decibel

Question 10

Two sounds can have the same frequency and amplitude, but the sound quality can be very different depending on __________.

Answer 10

resonance

Question 11

What is the pitch of sound determined by?

Answer 11

frequency

Question 12

What is the loudness of sound determined by?

Answer 12

amplitude

Question 13

How does sound make waves?

Answer 13

by pushing through solids, liquids, and gases

Question 14

What does sound travel best through?

Answer 14

solids

Question 15

What does sound travel least well through?

Answer 15

gases

Question 16

When animals use an echolocation system based on sound waves to help them navigate and located food, this system is called __________.

Answer 16

sonar

Question 17

What are the vibrations that cause string instruments to make sounds caused by?

Answer 17

plucking or stroking

Question 18

What are the vibrations that cause percussion instruments to make sounds caused by?

Answer 18

striking or hitting

Question 19

What are the vibrations that cause brass instruments and woodwinds to make sounds caused by?

Answer 19

blowing or forcing air into the air column