NSO Level 1- Science Olympiad (SOF) Class 8: Questions 913 - 919 of 1076

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Question number: 913

» Sound

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MCQ▾

Question

Sound energy passing through unit area is known as

Choices

Choice (4) Response

a.

Frequency of sound

b.

Wavelength of sound

c.

Loudness of sound

d.

Intensity of sound

Question number: 914

» Sound

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MCQ▾

Question

A cricket produces sound by the vibration of its

Choices

Choice (4) Response

a.

File and scraper

b.

Vocal cord

c.

Tongue

d.

Teeth

Question number: 915

» Sound

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MCQ▾

Question

The distance between two consecutive crests or troughs is known as

Choices

Choice (4) Response

a.

Trough

b.

Amplitude

c.

Wavelength

d.

Crest

Question number: 916

» Sound

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MCQ▾

Question

Bats, whales and dolphins use this sound to communicate

Choices

Choice (4) Response

a.

Audible sound

b.

Ultra sound

c.

Infra sound

d.

All of the above

Question number: 917

» Sound

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MCQ▾

Question

This sound is not a cause of sound pollution

Choices

Choice (4) Response

a.

Whistling sound from a cooker

b.

Sound from factories or workshops

c.

Sound from a guitar

d.

Sound from automobiles and horns

Question number: 918

» Sound

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MCQ▾

Question

Which of the following is not a musical instrument that produces sound by striking?

Choices

Choice (4) Response

a.

Khadam

b.

Drum

c.

Manjira

d.

Flute

Question number: 919

» Sound

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MCQ▾

Question

A whistle produces a high pitch sound than a drum. The reason is

Choices

Choice (4) Response

a.

The sound of a whistle has higher frequency

b.

Pitch of a sound depends upon the frequency

c.

Pitch of a sound depends upon the amplitude

d.

Both a. and b. are correct

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