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MATTER GRADE 8

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

The quantity of matter present in an object is called its:

a)

Weight

b)

Gram

c)

Mass

d)

Density

2.

At higher altitudes:

a)

Boiling point of a liquid decreases

b)

Boiling point of a liquid increases

c)

No change in boiling point

d)

melting point of solid increases

3.

In which phenomena water changes into water vapour below its boiling point?

a)

Evaporation

b)

Condensation

c)

Boiling

d)

No such phenomena exist

4.

The boiling point of water on Celsius scale and kelvin scale respectively is :

a)

373,273

b)

0,273

c)

273,373

d)

100,373

5.

when we put some crystals of potassium Permanganate in a beaker containing water, we observe that after sometime whole water has turned pink. This is due to:

a)

Boiling

b)

Melting of potassium Permanganate crystals

c)

sublimation of crystals

d)

Diffusion

6.

The change of a liquid into vapour is called :

a)

Vapourisation

b)

Solidification

c)

Sublimation

d)

None of these

7.

The state of matter which has least diffusion capacity

a)

Gas

b)

solid

c)

liquid

d)

plasma

8.

The state of matter which has maximum kinetic energy

a)

Gas

b)

Liquid

c)

solid

d)

vacumm

9.

the force of attraction between different molecules is called as

a)

cohesive force

b)

Electrostatic force

c)

Adhesive force

d)

None of these

10.

When heat energy is supplied,the kinetic energy of the molecules

a)

Decreases

b)

increases

c)

First increases and then decreases

d)

Remains same