NSO Level 1- Science Olympiad (SOF) Class 8: Questions 774 - 779 of 1076

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Question number: 774

» Force and Pressure

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MCQ▾

Question

Force may accelerate the movement of objects. Which of the following is an example of this statement?

Choices

Choice (4)Response

a.

Hitting with hammer on an aluminium vessel

b.

Kicking a moving ball

c.

Kicking a football

d.

Catching a cricket ball

Question number: 775

» Friction

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MCQ▾

Question

Players apply talcum powder on the coins of a carom before playing. This is to

Choices

Choice (4)Response

a.

Reduce the friction

b.

Control the speed of the coin while playing

c.

All of the above

d.

Question does not provide sufficient data or is vague

Question number: 776

» Friction

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MCQ▾

Question

Find out the situations where friction is helpful to us

Choices

Choice (4)Response

a.

While running on a sloppy road

b.

While applying breaks to stop a car

c.

While using rollers to level the road

d.

All a. , b. and c. are correct

Question number: 777

» Force and Pressure

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MCQ▾

Question

A force which can produce its effect without direct contact with object is called

Choices

Choice (4)Response

a.

Contact force

b.

Non-contact force

c.

Electrostatic force

d.

Muscular force

Question number: 778

» Friction

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MCQ▾

Question

The substances used to reduce friction are known as

Choices

Choice (4)Response

a.

Breaks

b.

Paints

c.

Lubricants

d.

Oils

Question number: 779

» Friction

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MCQ▾

Question

Friction acts as a friend in this part of bicycle. Identify the part.

Choices

Choice (4)Response

a.

Chain

b.

Break

c.

Wheels

d.

Handle

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