NSO Level 1- Science Olympiad (SOF) Class 9: Questions 1017 - 1021 of 1123

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Question number: 1017

» Physics » Force & Laws of Motion

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MCQ▾

Question

If two unequal forces act on an object in opposite directions simultaneously. The result on it would be

Choices

Choice (4) Response

a.

Moves in the direction of greater force

b.

Moves in the direction of the smaller force

c.

Breaks in to two pieces

d.

Does not move

Question number: 1018

» Physics » Sound

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MCQ▾

Question

Which of these is not an application of ultrasound?

Choices

Choice (4) Response

a.

It is used to clean spiral tubes

b.

It is used in echocardiography

c.

It is used to detect cracks and flaws in metal blocks

d.

It is used in radars

Question number: 1019

» Physics » Sound

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MCQ▾

Question

In the old age people lost their hearing ability. Which device can be useful for them to support them hearing?

Choices

Choice (4) Response

a.

Gramophone

b.

Saxophone

c.

Microphone

d.

Megaphone

Question number: 1020

» Physics » Force & Laws of Motion

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MCQ▾

Question

The luggage kept on the left of a moving bus falls towards the back end of the bus. This indicates that

Choices

Choice (4) Response

a.

The driver accelerated the bus

b.

The driver applied sudden break

c.

The bus took a U-turn

d.

All of the above

Question number: 1021

» Physics » Force & Laws of Motion

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MCQ▾

Question

According to third law of motion, action and reaction are

Choices

Choice (4) Response

a.

Always act on different bodies in the same direction

b.

Always act on the same body in the same direction

c.

Always act on different bodies in the opposite directions

d.

Question does not provide sufficient data or is vague

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