Physics-Work and Energy (NSTSE Class 6): Questions 16 - 22 of 69

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Question number: 16

» Physics » Work and Energy

MCQ▾

Question

When a rocket takes off from the ground:

Choices

Choice (4) Response

a.

Kinetic energy and potential energy increases

b.

Kinetic energy and potential energy remain constant

c.

Potential energy increases and kinetic energy decreases

d.

Potential energy decreases and kinetic energy increases

Question number: 17

» Physics » Work and Energy

MCQ▾

Question

A photovoltaic cell converts solar energy to ________.

Choices

Choice (4) Response

a.

Muscular energy

b.

Electrical energy

c.

Light energy

d.

Chemical energy

Question number: 18

» Physics » Work and Energy

MCQ▾

Question

Which of the following energy can be got by the food?

Choices

Choice (4) Response

a.

Mechanical energy

b.

Muscular energy

c.

Heat energy

d.

Magnetic energy

Question number: 19

» Physics » Work and Energy

MCQ▾

Question

Which of the following does have potential energy?

Choices

Choice (4) Response

a.

Falling fruit from the tree

b.

Water in flowing river

c.

Water in a bottle

d.

Blowing air from balloon

Question number: 20

» Physics » Work and Energy

MCQ▾

Question

________ is main source of all type of energy on the Earth.

Choices

Choice (4) Response

a.

Moon

b.

Petroleum

c.

Sun

d.

Coal

Question number: 21

» Physics » Work and Energy

MCQ▾

Question

The form of energy stored in petroleum is ________.

Choices

Choice (4) Response

a.

Chemical energy

b.

Mechanical energy

c.

Heat energy

d.

Magnetic energy

Question number: 22

» Physics » Work and Energy

MCQ▾

Question

Solar cells use ________to produce electricity.

Choices

Choice (4) Response

a.

Heat energy of coal or petroleum

b.

Water stored by a dam

c.

Wind energy

d.

Solar energy

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