NSO Level 1- Science Olympiad (SOF) Class 8: Questions 790 - 796 of 1076

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Question number: 790

» Force and Pressure

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MCQ▾

Question

If a boy pushes a table, the direction of force would be

Choices

Choice (4)Response

a.

Left to the boy

b.

Away from the boy

c.

Right to the boy

d.

Towards the boy

Question number: 791

» Friction

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MCQ▾

Question

Which of the following is not used as a lubricant?

Choices

Choice (4)Response

a.

Graphite

b.

Mineral oil

c.

Grease

d.

Engine oil

Question number: 792

» Friction

Edit
MCQ▾

Question

Sai’s mother applied oil on the hinges of window to avoid creaking sound. How will you justify this act?

Choices

Choice (4)Response

a.

Oiling reduces friction

b.

Oiling increases friction

c.

Oiling removes rust and smoothen the hinges

d.

Both a. and c. are correct

Question number: 793

» Force and Pressure

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MCQ▾

Question

The effect of force is experienced only by contact with each other. This force is called

Choices

Choice (4)Response

a.

Contact force

b.

Frictional force

c.

Muscular force

d.

Gravitational force

Question number: 794

» Force and Pressure

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MCQ▾

Question

The direction of gravity is

Choices

Choice (4)Response

a.

Upwards

b.

Northwards

c.

Downwards

d.

Southwards

Question number: 795

» Force and Pressure

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MCQ▾

Question

A force which can produce its effect only by making a contact with object is called

Choices

Choice (4)Response

a.

Gravity

b.

Friction

c.

Muscular force

d.

Contact force

Question number: 796

» Force and Pressure

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MCQ▾

Question

Force may change the shape of objects. Which of the following is an example of this statement?

Choices

Choice (4)Response

a.

Hitting with a spoon on a steel plate

b.

Catching a cricket ball

c.

Kicking a football

d.

Hitting with hammer on an aluminium vessel

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