NSO Level 1- Science Olympiad (SOF) Class 9: Questions 984 - 989 of 1123

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Question number: 984

» Physics » Force & Laws of Motion

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MCQ▾

Question

A ball lying on the ground remains still unless and until a player kicks it. This is an example of

Choices

Choice (4)Response

a.

Newton’s Second Law of Motion

b.

Newton’s First Law of Motion

c.

Law of conservation of Momentum

d.

Newton’s Third Law of Motion

Question number: 985

» Physics » Sound

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MCQ▾

Question

A gun is fired in the air at a distance of from a person. He hears the second of the gun after what is the speed of sound.

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 986

» Physics » Sound

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MCQ▾

Question

The outer ear is called as

Choices

Choice (4)Response

a.

Stirrup

b.

Cochlea

c.

Anvil

d.

Pinna

Question number: 987

» Physics » Sound

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MCQ▾

Question

Sound waves are also known as

Choices

Choice (4)Response

a.

Supersonic waves

b.

Pressure waves

c.

Temperature waves

d.

Shock waves

Question number: 988

» Physics » Force & Laws of Motion

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MCQ▾

Question

Which of the following is the reaction, when you walk on a road?

Choices

Choice (4)Response

a.

The force that the road exerts on your feet

b.

The muscular force you exert on the road

c.

Question does not provide sufficient data or is vague

d.

None of the above

Question number: 989

» Physics » Force & Laws of Motion

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MCQ▾

Question

A constant force acts on an object of mass for a duration of . This increases the velocity of the object from to . . Magnitude of the applied force would be

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

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