NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1619 - 1624 of 2028

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Question number: 1619

» Physics » Sound

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MCQ▾

Question

The velocity of the sound on moon is:

Choices

Choice (4) Response

a.

0

b.

c.

d.

Question number: 1620

» Physics » Force and Pressure

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MCQ▾

Question

A cylindrical container filled with water as shown in figure. are closed holes of equal diameter at different height of the container. If we open these holes, through which hole, water covers a maximum horizontal distance?

A container with holes

A Container with Holes

In figure a container with holes is shown.

Choices

Choice (4) Response

a.

S

b.

P

c.

R

d.

Q

Question number: 1621

» Physics » Force and Pressure

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MCQ▾

Question

The atmospheric pressure is measured by:

Choices

Choice (4) Response

a.

Thermometer

b.

Anemometer

c.

Barometer

d.

All of the above

Question number: 1622

» Physics » Force and Pressure

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MCQ▾

Question

Friction force is decreased by:

Choices

Choice (4) Response

a.

Using oil on the surface of contact

b.

Making surface smooth

c.

Decrease the weight of body

d.

All a. , b. and c. are correct

Question number: 1623

» Physics » Force and Pressure

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MCQ▾

Question

If the height of the water surface above the bottom of given vessels is same, then in which of the following vessel, the pressure of the water on the bottom of vessel is greatest?

Four vessels containing water

Four Vessels Containing Water

In figure four vessels containing water is shown.

Choices

Choice (4) Response

a.

Vessel – 2

b.

Same pressure at bottom for all vessels.

c.

Vessel – 3

d.

Vessel – 4

Question number: 1624

» Physics » Sound

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MCQ▾

Question

An object is travelling with speed of sound. Therefore, value of its speed is around:

Choices

Choice (4) Response

a.

b.

c.

d.

All a. , b. and c. are correct

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