Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 110 - 116 of 191

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Question 110

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Question

MCQ▾

Which of the following is used as a filament in the bulb?

Choices

Choice (4)Response

a.

Neon

b.

Mercury

c.

Helium

d.

Tungsten

Question 111

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Question

MCQ▾

What energy conversion takes place in electric bell?

Choices

Choice (4)Response

a.

Light energy to electric energy

b.

Electric energy to sound energy

c.

Electric energy to light energy

d.

Sound energy to electric energy

Question 112

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Question

MCQ▾

Air expands on:

Choices

Choice (4)Response

a.

Freezing

b.

Heating

c.

Cooling

d.

Question does not provide sufficient data or is vague

Question 113

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Question

MCQ▾

Which of the following device does not use electromagnet?

Choices

Choice (4)Response

a.

Electric fan

b.

Electric heater

c.

Electric door bell

d.

All of the above

Question 114

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Question

MCQ▾

What are tornadoes?

Choices

Choice (4)Response

a.

Very fast moving dark cloud in the shape of a funnel

b.

Flow of moist air from ocean towards land in summer

c.

Fast moving air towards a centre.

d.

Rain associated with lightning.

Question 115

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Question

MCQ▾

The wire used in electric wiring are ________ in nature?

Choices

Choice (4)Response

a.

Conducting

b.

Resisting

c.

Insulating

d.

None of the above

Question 116

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Question

MCQ▾

When electric current flows through a conducting wire, the temperature of wire:

Choices

Choice (4)Response

a.

Increases

b.

Decreases

c.

Remains the same

d.

Question does not provide sufficient data or is vague