More Classes

5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject

Physics 9th Class English Medium Unit 6 Online Test MCQs With Answers

Question # 1

If f = 40 N is applied and bus is move 1m than work is :

Choose an answer

40 J

60 J

80 J

No work

Skip

Question # 2

The S.I unit of power is:

Choose an answer

Newton

Watt

Joule

Coulomb

Skip

Question # 3

If mass of a body becomes half that its energy K.E will be reduce to:

Choose an answer

Zero

Half

Double

4 Times

Skip

Question # 4

Mass-Energy equation was given by:

Choose an answer

Newton

Einstein

Joule

Pascal

Skip

Question # 5

Energy cannot be destroyed however it can be converted into some other forms. This is known as:

Choose an answer

Law of heat exchange

Law of conservation of energy

Law of conservation of momentum

None of these

Skip

Question # 6

A temperature rise in the environment disturbs life called:

Choose an answer

Air pollution

Land pollution

Noice pollution

Thermal pollution

Skip

Question # 7

If mass of body is 10 kg travelling with speed of light, how much energy is generated?

Choose an answer

E = 9 × 1017 J

E = 9 × 1015 J

E = 9 × 1018 J

E = 9 × 1016 J

Skip

Question # 8

The rate of doing work is called :

Choose an answer

Power

Work

Efficiency

None of above

Skip

Question # 9

When a body is lifted through height h, the work done on it appears in the form of its

Choose an answer

Kinetic energy

Potential eneger

Elastic potential energy

Geothermal energy

Skip

Question # 10

The energy of a body during the motion is called:

Choose an answer

Potential energy

Kinetic energy

Elastic P.E.

Heat energy

Skip

Question # 11

The work done in lifting a brick of mass 2 kg through a height of 5 m above the ground will be:

Choose an answer

2.5 J

12.5 J

50 J

100 J

Skip

Question # 12

Which one of the following converts light energy into electrical energy?

Choose an answer

Electric Bulb

Electric generator

Photocell

Electric cell

Skip

Question # 13

An ideal system gives output:

Choose an answer

50%

60%

80%

100%

Skip

Back