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Sound Waves - SS3 Physics Past Questions and Answers - page 2

11

Quality can be described as ___

A

a measure of the complex nature of a sound wave

B

a measure of the amplitude of a sound wave

C

a measure of the frequency of a sound wave

D

a measure of the ratio of sound to the medium it travels through

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12

Where can the knowledge of the characteristics of sound be applied?

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13

Explain what is meant by the pitch of a sound wave.

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14

The factors affecting the speed of sound waves in dry air are all except ___

A

Temperature

B

Volume

C

Humidity

D

Atmospheric Pressure

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15

Sound waves travel through which of these materials the fastest?

A

Rope

B

Water

C

Steel

D

Air

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16

Which of these is the key factor that affects the speed of sound waves travelling via a medium?

A

Density

B

Pressure

C

Humidity

D

Temperature

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17

Understanding of the speed of sound is fundamental in the following fields except in ___

A

Aerospace engineering

B

Acoustics

C

Seismology

D

Marine biology

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18

The denser the medium, the ___ sound waves travel through it

A

Slower

B

Proportionally

C

Faster

D

Equally

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19

Explain why the speed of sound varies.

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20

A sound wave is observed to travel through an unconventional medium with a frequency of 89Hz and a wavelength of 6 meters, what is the velocity of the sound wave travelling through this medium?

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