NSO Level 1- Science Olympiad (SOF) Class 8: Questions 805 - 809 of 1076

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Question number: 805

» Force and Pressure

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MCQ▾

Question

Weight of an object on Earth is 1/6th in moon. This is because

Choices

Choice (4) Response

a.

The gravity of earth is equal to that of moon

b.

The gravity of earth is 1/6th of that of moon

c.

The gravity of earth is 60 times that of moon

d.

The gravity of earth is 6 times that of moon

Question number: 806

» Friction

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MCQ▾

Question

Ball bearings are used in fans. The reason behind this is

Choices

Choice (4) Response

a.

Balls reduce friction

b.

Balls increase friction

c.

Balls reduce the speed

d.

Question does not provide sufficient data or is vague

Question number: 807

» Force and Pressure

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MCQ▾

Question

In the given figure, the effect of force is

Figure shown the effect of force

Figure Shown the Effect of Force

The effect of force is shown in figure

Choices

Choice (4) Response

a.

Change shape

b.

Start motion

c.

Change speed

d.

Change direction

Question number: 808

» Friction

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MCQ▾

Question

Skating on a road is more difficult than skiing on ice or surfing on waves. The reason is

Choices

Choice (4) Response

a.

A rough surface apply less friction than ice or water

b.

Ice and water apply less friction than a rough surface

c.

Fluid friction is less than sliding friction

d.

Question does not provide sufficient data or is vague

Question number: 809

» Force and Pressure

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MCQ▾

Question

Identify the type of force applied in these case:

The force responsible to change the direction or state of motion of a moving object is called

Choices

Choice (4) Response

a.

Muscular force

b.

Friction

c.

Contact force

d.

Gravity

Developed by: