NSO Level 1- Science Olympiad (SOF) Class 8: Questions 762 - 768 of 1076

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Question number: 762

» Friction

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MCQ▾

Question

The weighing device used for measuring the force acting on an object is

Choices

Choice (4) Response

a.

Vector quantity

b.

Scalar quantity

c.

All of the above

d.

None of the above

Question number: 763

» Force and Pressure

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MCQ▾

Question

One Pascal is equal to

Choices

Choice (4) Response

a.

1 kg/m²

b.

1 kgm²

c.

1 Nm²

d.

1 N/m²

Question number: 764

» Force and Pressure

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MCQ▾

Question

The force with which earth attracts all the objects towards its centre. This force is called

Choices

Choice (4) Response

a.

Electrostatic force

b.

Friction

c.

Magnetic force

d.

Gravity

Question number: 765

» Friction

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MCQ▾

Question

Friction always acts as________the direction of motion of an object.

Choices

Choice (4) Response

a.

Perpendicular to

b.

In the same direction as

c.

At 45 degrees angle to

d.

Opposite to

Question number: 766

» Friction

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MCQ▾

Question

The force opposing movement of the swimmer in the figure is called

Image shown Fluid friction

Image Shown Fluid Friction

Image shown Fluid friction

Choices

Choice (4) Response

a.

Solid friction

b.

Liquid friction

c.

Fluid friction

d.

Question does not provide sufficient data or is vague

Question number: 767

» Force and Pressure

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MCQ▾

Question

Identify the type of force applied in these case:

A boy squeezes a plastic bottle with his hands.

Choices

Choice (4) Response

a.

Gravity

b.

Mechanical force

c.

Contact force

d.

Muscular force

Question number: 768

» Friction

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MCQ▾

Question

Sand paper is used to increase friction. The reason is

Choices

Choice (4) Response

a.

Sand paper increases the roughness of the surface

b.

Roughness increases friction

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

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