NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1580 - 1587 of 2028

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Question number: 1580

» Physics » Sound

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MCQ▾

Question

An object oscillates times in , therefore its frequency is:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1581

» Physics » Sound

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MCQ▾

Question

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

Choices

Choice (4) Response

a.

Lungs

b.

Wind pipe

c.

Larynx

d.

Vocal chords

Question number: 1582

» Physics » Force and Pressure

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MCQ▾

Question

Due to presence of which of the following, one can suck juice from straw.

Choices

Choice (4) Response

a.

Pressure of liquid

b.

Smaller cross section area of straw

c.

Atmospheric Pressure

d.

Gravitational force

Question number: 1583

» Physics » Sound

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MCQ▾

Question

The value of speed of sound is least in:

Choices

Choice (4) Response

a.

Air

b.

Water

c.

Steel

d.

All of the above

Question number: 1584

» Physics » Friction

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MCQ▾

Question

Two blocks A and B are kept in contact and both are relatively in motion. If block A is heavier then block B, then friction acts on:

Choices

Choice (4) Response

a.

Neither on block A nor block B

b.

Block B

c.

Block A and Block B

d.

Block A

Question number: 1585

» Physics » Sound

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MCQ▾

Question

If we are decreasing the stretching force on a wire in a guitar, its frequency:

Choices

Choice (4) Response

a.

becomes zero

b.

increases

c.

remains same

d.

decreases

Question number: 1586

» Physics » Sound

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MCQ▾

Question

Which characteristic of sound is useful to determine Pitch of sound?

Choices

Choice (4) Response

a.

Loudness

b.

Frequency

c.

Speed

d.

Amplitude

Question number: 1587

» Physics » Force and Pressure

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MCQ▾

Question

If a tip of drawing pen of area , exerted pressure on a drawing paper, then force applied on the surface of drawing paper is:

Choices

Choice (4) Response

a.

b.

c.

d.

Developed by: