NSO Level 1- Science Olympiad (SOF) Class 8: Questions 787 - 792 of 1076

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Question number: 787

» Force and Pressure

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MCQ▾

Question

In the given figure, the effect of force is

Figure of the effect of force

Figure of the Effect of Force

The effect of force is shown in figure

Choices

Choice (4) Response

a.

Change shape

b.

Change direction

c.

Change speed

d.

Start motion

Question number: 788

» Friction

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MCQ▾

Question

If there is no friction, which of the following activities would be easier

Choices

Choice (4) Response

a.

Fixing a nail

b.

Lighting a match stick

c.

Moving a table

d.

Writing on a board

Question number: 789

» Force and Pressure

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MCQ▾

Question

It is easy to lift 240 kg heavy dumb bell on moon for a weight lifter who lifts a maximum weight of 120 kg on earth.

Choices

Choice (4) Response

a.

Gravity of moon and earth are same

b.

Gravity of earth is 6 times that of moon

c.

Gravity of moon is 6 times that of earth

d.

Gravity of earth is two times that of moon

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

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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

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