5.1: Sound

Question 1

Vibrations

Answer 1

repeated back & forth about a fix point

Question 2

Sound wave

Answer 2

vibrations of particles parallel to the direction

of transfer of sound energy

Question 3

Waves

Answer 3

disturbance that travels through a medium

Question 4

Medium

Answer 4

the substance that a wave passes through

Question 5

Compression

Answer 5

region of a sound waves where particles are

pushed together

Question 6

Rarefaction

Answer 6

region of a sound waves where particles are

further apart

Question 7

Vacuum

Answer 7

a region without air

Question 8

Source

Answer 8

creates vibrations in the medium

Question 9

Detector

Answer 9

receives vibration in the medium

Question 10

How do sound waves travel?

Answer 10

An object vibrates, making the air molecules in front of it vibrate back and forth repeatedly. Then these molecules vibrate the molecules in front of them and so on, which makes sound waves form and travel.

Question 11

What are longitudinal waves?

Answer 11

Vibrations that are parallel to the direction of the wave traveled

Question 12

What are transverse waves?

Answer 12

Vibrations that are perpendicular to the direction of the wave traveled

Question 13

What is the speed of sound traveling through gas?

Answer 13

Oxygen - 343 m/s

Question 14

Why does sound travel faster through solid?

Answer 14

Because the molecules in solid are closer for vibrations to transmit faster

Question 15

Why can’t sound travel through a vacuum?

Answer 15

Because there is no particles to vibrate in a vacuum