Sound Waves

Question 1

Sound can be regarded as a

Answer 1

Longitudinal wave

Question 2

We can demonstrate the production of sound with

Answer 2

Tuning Fork

Question 3

sounds cannot travel in

Answer 3

Vacuums

Question 4

Arrange the speed of sound in mediums in order

Answer 4

Vsolid>Vliquid>Vgas

Question 5

Sound only varies with

Answer 5

Temperature

Question 6

Echo is

Answer 6

A reflection of sound waves

Question 7

The continuous occurrence of sound is called

Answer 7

Reverberation

Question 8

Applications of echoes include

Answer 8

Determination of speed of sound,echosounding,exploration for gas and oil,Detection of submarine

Question 9

Sound is most intense at night because

Answer 9

The lower layers are colder than the upper part

Question 10

Constructive waves are formed when

Answer 10

2 waves coming together interfere

Question 11

The periodic variations in the loudness of sound is

Answer 11

Beats

Question 12

The inverse square law is

Answer 12

E=E0/d2

Question 13

The characteristics of music notes are

Answer 13

Pitch,loudness,quality

Question 14

Pitch depends on the

Answer 14

Frequency

Question 15

We can show that frequency increases with pitch with

Answer 15

Tooth siren and Circular disc

Question 16

Loudness depends on the

Answer 16

Intensity of the sound waves

Question 17

Loudness also depends on the

Answer 17

Mass of air

Question 18

Loudness depends on the

Answer 18

Intensity,Amplitude,Mass of air

Question 19

The quality or tone of a waves depends on the

Answer 19

Overtone

Question 20

Frequency depends on

Answer 20

Length of spring,Mass per unit length,tension

Question 21

The two types of hearing aids are

Answer 21

Air conduction and bone conduction

Question 22

The type of hearing aid that brings sound directly to the ear is

Answer 22

Air conduction

Question 23

The type of hearing aid that brings air directly to the auditiry nerves is

Answer 23

Bone conduction