Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 155 - 160 of 219

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Question number: 155

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Question

MCQ▾

In buildings, earthing is provided to protect it from:

Choices

Choice (4)Response

a.

Lightning

b.

Thunderstorm

c.

Leakage of electric current

d.

Cyclone

Question number: 156

Physics
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Question

MCQ▾

In a rotating machine, which of the following is used to decreasing the friction?

Choices

Choice (4)Response

a.

Powder

b.

Polishing

c.

Rollers

d.

Ball bearing

Question number: 157

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Question

MCQ▾

The magnitude of earthquake is measured in:

Choices

Choice (4)Response

a.

Kelvin

b.

Celsius

c.

Richter

d.

Pascal

Question number: 158

Edit

Question

MCQ▾

By which of the following electric charges can be transferred from one charged body to another?

Choices

Choice (4)Response

a.

Insulators

b.

Earthing

c.

Seismograph

d.

Conductor

Question number: 159

Edit

Question

MCQ▾

If one metal rod having positive charges is placed, near to another metal rod having same positive charge, then they will:

Choices

Choice (4)Response

a.

Either attracted or repelled

b.

Remains as it is

c.

Repelled

d.

Attracted

Question number: 160

Physics
Edit

Question

MCQ▾

When a block is sliding on a horizontal stationary table, which type of force of friction is acting between surface of table and the block?

Choices

Choice (4)Response

a.

Rolling friction

b.

Fluid friction

c.

Dynamic friction

d.

Stationary friction