Physics-Sound [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 1 - 9 of 31

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Question 1

Sound

Question

MCQ▾

Sound is form of:

Choices

Choice (4)Response

a.

Energy

b.

Force

c.

Velocity

d.

Momentum

Question 2

Sound

Question

MCQ▾

A source of sound is producing oscillations in . Then its frequency (in Hz) of is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question 3

Sound

Question

MCQ▾

The time taken by the an object to travel one oscillation is called?

Choices

Choice (4)Response

a.

Amplitude

b.

Time period

c.

Acceleration

d.

Frequency

Question 4

Sound

Question

MCQ▾

A source is produced oscillations in . Therefore, its frequency is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question 5

Sound

Question

MCQ▾

Which of the following does not produced noise pollution?

Choices

Choice (4)Response

a.

Bomb blast

b.

Loud speaker.

c.

Television

d.

Horn of vehicle

Question 6

Sound

Question

MCQ▾

If frequency of a sound wave is , then number of oscillations in is:

Choices

Choice (4)Response

a.

9000

b.

18000

c.

150

d.

90

Question 7

Sound

Question

MCQ▾

The unit of loudness is:

Choices

Choice (4)Response

a.

decibel

b.

Second

c.

d.

meter

Question 8

Sound

Question

MCQ▾

An object oscillates times in , therefore its frequency is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question 9

Sound

Question

MCQ▾

The voices of male and female are different, because of:

Choices

Choice (4)Response

a.

Lungs

b.

Wind pipe

c.

Larynx

d.

Vocal chords

Developed by: