NSO Level 1- Science Olympiad (SOF) Class 9: Questions 1086 - 1092 of 1123

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Question number: 1086

» Physics » Work, Energy & Power

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Question

The momentum of a bullet of mass fired from a gun is . The kinetic energy of this bullet will be

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1087

» Physics » Work, Energy & Power

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Question

If the speed of an object is doubled, then its kinetic energy is

Choices

Choice (4) Response

a.

Doubled

b.

Tripled

c.

Quadrupled

d.

Halved

Question number: 1088

» Physics » Work, Energy & Power

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Question

Considering air resistance negligible, the sum of potential and kinetic energies of the free falling body would be

Choices

Choice (4) Response

a.

Zero

b.

Remains fixed

c.

Would increase

d.

Would decrease

Question number: 1089

» Physics » Work, Energy & Power

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Question

A boy lifts a block vertically . The work done by the boy is:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1090

» Physics » Work, Energy & Power

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Question

Which of the following does not possess the ability to do work because of motion?

Choices

Choice (4) Response

a.

A sparrow sitting in the nest on a tree

b.

An eagle flying in the sky

c.

A squirrel going up a tree

d.

A tortoise moving slowly on the ground

Question number: 1091

» Physics » Work, Energy & Power

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Question

The work done to stop a cricket ball of mass 500gmoving with a velocity of would be

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1092

» Physics » Work, Energy & Power

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MCQ▾

Question

The conditions to be satisfied to do work are

(1) A force should act on an object

(2) The object must be displaced

(3) The displacement should be in the direction of force

(4) The displacement should be in the opposite direction

Choices

Choice (4) Response

a.

3 and 4

b.

2 and 3

c.

1 and 3

d.

1 and 2

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