NSO Level 1- Science Olympiad (SOF) Class 8: Questions 953 - 955 of 1076

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Question number: 953

» Some Natural Phenomena

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Question

In winter season, a lady was sitting on a plastic chair wearing a silk sari. When she touched the handle of the steel locker, she experienced mild electric shock. The explanation of this statement would be

Choices

Choice (4)Response

a.

Plastic chair acquired electric charge by friction with silk

b.

The electric charge passed through her body to the handle and caused electric shock

c.

Silk acquired electric charge due to friction with plastic.

d.

Silk acquired electric charge due to friction with plastic and The electric charge passed through her body to the handle and caused electric shock.

Question number: 954

» Some Natural Phenomena

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Question

Reshma was trying to make an electroscope. She collected different things needed for the purpose. Instead of aluminium strip, she used plastic strips as leaves. The effect of electric charges on it would be

Choices

Choice (4)Response

a.

The strips diverge in presence of both the charges.

b.

The strips do not diverge in presence of both the charges.

c.

The strips diverge in presence of negative charge only.

d.

The strips diverge in presence of positive charge only.

Question number: 955

» Some Natural Phenomena

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MCQ▾

Question

An instrument which measures and records the force and duration of an earthquake is called

Choices

Choice (4)Response

a.

Seismograph

b.

Electro-encephalograph

c.

Electro cardiograph

d.

All of the above

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