NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1581 - 1587 of 2028

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Question 1581

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

Question 1582

Question

MCQ▾

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 1583

Question

MCQ▾

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 1584

Question

MCQ▾

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 1585

Question

MCQ▾

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 1586

Question

MCQ▾

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

Choices

Choice (4)Response

a.

Loudness

b.

Frequency

c.

Speed

d.

Amplitude

Question 1587

Question

MCQ▾

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: