Sound - ICSE STD 8 PHYSICS Questions - Vidyadip

Question types

Sound question types

65 questions across 8 question groups — pick any mix to generate a PHYSICS paper with step-by-step answer keys.

65

Questions

8

Question groups

5

Question types

MCQ

[1 Mark Question Answer]

[2 Mark Question Answer]

[3 Mark Question Answer]

[5 Mark Question Answer]

fill in the blanks.

TRUE / FALSE

Match the following.

Sample Questions

Sound questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1MCQ1 Mark

The sound that never changes in pitch, volume, speed or timbre is known as $–$

A
monologue.
B
monolingual.
C
monophony.
✓
monotone.

Answer: D.

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Q 2MCQ1 Mark

Musical sounds are caused due to $–$

✓
regular vibrations.
B
irregular vibrations.
C
damped vibrations.
D
none of these

Answer: A.

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Q 3MCQ1 Mark

Which of the following properties of sound is responsible for its loudness?

A
frequency
B
pitch
✓
amplitude
D
quality

Answer: C.

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Q 4MCQ1 Mark

A sound produced by guitar and violin with the same pitch and loudness is distinguished by its

A
frequency.
B
amplitude.
✓
timbre.
D
time period.

Answer: C.

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Q 5MCQ1 Mark

The pitch of a flute can be increased by

A
increasing the length of its vibrating air column.
✓
decreasing the length of its vibrating air column.
C
increasing the length of its vibrating string.
D
decreasing the length of its vibrating string.

Answer: B.

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Q 6[1 Mark Question Answer]1 Mark

State the unit of loudness. Mention the effect of different loudness levels on human ears.

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Q 7[1 Mark Question Answer]1 Mark

What do you understand by monotone?

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Q 8[1 Mark Question Answer]1 Mark

Name the different types of musical instruments.

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Q 9[1 Mark Question Answer]1 Mark

How is it possible to distinguish between sounds produced by different instruments tuned to the same frequency?

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Q 10[1 Mark Question Answer]1 Mark

Mention two effects produced on humans by sounds of $90\ dB$ or more.

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Q 11[2 Mark Question Answer]2 Marks

What do you understand by the terms pitch, timbre and loudness of a sound ?

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Q 12[2 Mark Question Answer]2 Marks

Define amplitude, time period and frequency with respect to a sound wave. State the relationship between time period and frequency of a wave.

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Q 13[2 Mark Question Answer]2 Marks

A monotone is unable to deliver the message imparted by the orator. Give reason.

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Q 14[2 Mark Question Answer]2 Marks

Loudness of a sound depends on its amplitude. Give reason.

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Q 15[2 Mark Question Answer]2 Marks

Why is it advised not to use earphones at loud volumes?

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Q 16[3 Mark Question Answer]3 Marks

Prove that the pitch of a wind instrument depends on the length of the vibrating air column.

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Q 17[3 Mark Question Answer]3 Marks

How can you prove experimentally that the pitch of a string instrument depends on the length of the vibrating string?

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Q 18[3 Mark Question Answer]3 Marks

State the factors affecting the loudness of sound. How do these factors affect the loudness of sound?

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Q 19[5 Mark Question Answer]5 Marks

Write two differences between loudness and pitch.

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Q 20[5 Mark Question Answer]5 Marks

Classify percussion instruments on the basis of the pitch produced by them.

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Q 21[5 Mark Question Answer]5 Marks

Differentiate between music and noise. Why is it advisable to listen to music at a moderate level?

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Q 22fill in the blanks.1 Mark

Constant exposure to sounds above $80\ dB$ can cause $.........$

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Q 23fill in the blanks.1 Mark

Sound of about $.........$ decibels or more causes many health hazards.

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Q 24fill in the blanks.1 Mark

Humans can pick up sounds in the range of to $.........$

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Q 25fill in the blanks.1 Mark

Unpleasant sound that is very loud is called $.........$

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Q 26fill in the blanks.1 Mark

Drum produces sound due to vibration of its $.........$

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Q 27TRUE / FALSE1 Mark

Percussion instruments produce sound due to the vibration of thin metal strips.

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Q 28TRUE / FALSE1 Mark

Sounds below $50\ dB$ cause noise pollution arid are harmful.

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Q 29TRUE / FALSE1 Mark

Music has a disturbing effect on health and behaviour of a person.

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Q 30TRUE / FALSE1 Mark

A flute produces sound due to vibration of air column inside it.

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Q 31TRUE / FALSE1 Mark

The pitch of a stringed instrument depends on the tension in the string.

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Q 32Match the following.5 Marks

$1.$Wind instruments	$a.$vibrating string
$2.$Stringed instruments	$b.$frequency
$3.$Percussion instruments	$c.$ vibrating air column
$4.$Pitch	$d.$ vibrating stretched membrane
$5.$Loudness	$e.$amplitude

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