NSO Level 1- Science Olympiad (SOF) Class 8: Questions 799 - 804 of 1076

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Question number: 799

» Force and Pressure

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MCQ▾

Question

Every object in the universe attracts every other object with a force. This force is called

Choices

Choice (4) Response

a.

Universal gravitation

b.

Magnetic force

c.

Earths gravitation

d.

Frictional force

Question number: 800

» Force and Pressure

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MCQ▾

Question

Identify the type of force applied in these case:

The force applied by an obstacle on the path of a moving body is called

Choices

Choice (4) Response

a.

Gravitation

b.

Contact force

c.

Friction

d.

Question does not provide sufficient data or is vague

Question number: 801

» Force and Pressure

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MCQ▾

Question

In the given figures, the effect of force is

Image shown the effect of force fig 1

Image Shown the Effect of Force Fig 1

The effect of force is shown in figure 1

Image shown the effect of force fig 2

Image Shown the Effect of Force Fig 2

The effect of force is shown in figure 2

Choices

Choice (4) Response

a.

Change direction

b.

Change shape

c.

Start motion

d.

Change speed

Question number: 802

» Force and Pressure

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MCQ▾

Question

Force acting per unit area is called

Choices

Choice (4) Response

a.

Gravity

b.

Pressure

c.

Weight

d.

Question does not provide sufficient data or is vague

Question number: 803

» Force and Pressure

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MCQ▾

Question

The force required to lift a stone of mass from the ground would be

Choices

Choice (4) Response

a.

196 Newton

b.

19.6 Newton

c.

1960 Newton

d.

1.96 Newton

Question number: 804

» Friction

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MCQ▾

Question

Porters make use of trolleys to carry heavy luggage in a railway stations than carrying on their head. The reason is

Choices

Choice (4) Response

a.

Thrust decreases with area

b.

Wheels help to reduce friction

c.

Thrust acting will be less on a trolley than head

d.

All a. , b. and c. are correct

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