NSO Level 1- Science Olympiad (SOF) Class 9: Questions 1074 - 1079 of 1123

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Question number: 1074

» Physics » Work, Energy & Power

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MCQ▾

Question

There are four bulbs and three bulbs in a house. If they are switched on continuously for per day, the electric bill to be paid every month if charged paisa per unit would be

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1075

» Physics » Work, Energy & Power

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MCQ▾

Question

Which of the following is not the unit of energy?

Choices

Choice (4) Response

a.

Joule

b.

Kilowatt-hour

c.

Kilowatt

d.

Newton metre

Question number: 1076

» Physics » Work, Energy & Power

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MCQ▾

Question

A light and heavy body have equal momenta. Which one has greater kinetic energy?

Choices

Choice (4) Response

a.

The heavy body

b.

The light body

c.

All of the above

d.

Question does not provide sufficient data or is vague

Question number: 1077

» Physics » Work, Energy & Power

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MCQ▾

Question

In which of the following cases work is done

  1. Dolly prepared for the exams by studying day and night
  2. Divya practiced cycling in the aerobic machine
  3. Sunil carried a bucket full of water to the terrace
  4. Mr. Shekhar walked 2 km

Choices

Choice (4) Response

a.

1 and 2

b.

3 and 4

c.

1 and 3

d.

2 and 3

Question number: 1078

» Physics » Work, Energy & Power

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MCQ▾

Question

In case of negative work, the angle between the force and displacement is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1079

» Physics » Work, Energy & Power

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MCQ▾

Question

In order to do work, energy is

Choices

Choice (4) Response

a.

Lost

b.

Transferred or converted

c.

Used up

d.

None of the above

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