NSO Level 1- Science Olympiad (SOF) Class 8: Questions 993 - 997 of 1076

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Question number: 993

» Some Natural Phenomena

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Question

It is not safe to use a landline phone during lightning. The reason is

Choices

Choice (4) Response

a.

You may receive a deadly electric shock

b.

You may receive a deadly electric shock and You may face a deafening sound blast

c.

You won’t hear the sound properly

d.

You may face a deafening sound blast

Question number: 994

» Some Natural Phenomena

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MCQ▾

Question

It is not safe to use a landline phone during a thunderstorm when you are outdoors. The reason is

Choices

Choice (4) Response

a.

It can cause deafness and Any object with metallic components increases the chances of electric shock

b.

It can cause deafness.

c.

Any object with metallic components increases the chances of electric shock

d.

You won’t hear the sound properly

Question number: 995

» Chemical Effects of Electric Current

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Question

Mother told Ravi not to touch electric switch with wet hands. The reason is

Choices

Choice (4) Response

a.

Moisture may cause electric shock.

b.

Water is a good conductor of electricity.

c.

Water is a good conductor of electricity and Moisture may cause electric shock.

d.

None of the above

Question number: 996

» Some Natural Phenomena

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MCQ▾

Question

The logarithmic scale which shows the magnitude of earthquake is called

Choices

Choice (4) Response

a.

Weighing scale

b.

Seismic scale

c.

Iron scale

d.

Richter scale

Question number: 997

» Some Natural Phenomena

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MCQ▾

Question

Raju was doing an experiment to learn about electric charges. He took two balloons, two used ball pen refills, a piece of wool and a piece of polythene. He rubbed both the balloons with wool and brought the balloons together. He observed that the balloons moved away from each other. Then he rubbed both the refills with the piece of polythene and brought near to each other. Again he observed that they moved away from each other. From this experiment he concluded that

Choices

Choice (4) Response

a.

Like charges repel

b.

Unlike charges repel

c.

Unlike charges attract

d.

Like charges attract

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