Free Printable matter in our surrounding

1.

Which of the following is most suitable for summer?

a)

Cotton

b)

Nylon

c)

Polyester

d)

Silk

2.

On heating, a solid is converted to liquid. This change is called

a)

Melting

b)

Fusion

c)

Diffusion

d)

Freezing

3.

The arrangement of constituent particles is most ordered in

a)

Solid state

b)

liquid state

c)

gaseous state

d)

all of these

4.

During summer, water kept in an earthen pot becomes cool because of the phenomenon of

a)

(a) diffusion

b)

(b) transpiration

c)

(c) osmosis

d)

(d) evaporation

5.

Choose the correct statement of the following

a)

(a) conversion of solid into vapours without passing through the liquid

state is called vapourisation.

b)

(b) conversion of vapours into solid without passing through the liquid

state is called sublimation.

c)

(c) conversion of vapours into solid without passing through the liquid state is called freezing.

d)

(d) conversion of solid into liquid is called sublimation.

6.

Which condition out of the following will increase the evaporation of water?

a)

(a) Increase in temperature of water

b)

(b) Decrease in temperature of water

c)

(c) Less exposed surface area of water

d)

(d) Adding common salt to water

7.

When water at 0°C freezes to form ice at the same temperature of 0°C, then it:

a)

(a) Absorbs some heat

b)

(b) Releases some heat

c)

(c) Neither absorbs nor releases heat

d)

(d) Absorbs exactly 3.34 x 10⁵J/kg of heat

8.

Which of the following phenomena always results in the cooling effect?

a)

(a) Condensation

b)

(b) Evaporation

c)

(c) Sublimation

d)

(d) None of these

9.

Which of the following statement is not true regarding the characteristic of matter?

a)

(a) Particles of a matter are randomly moving in all directions.

b)

(b) Kinetic energy of the particles increases with a rise in temperature

c)

(c) Kinetic energy of the particles of all maters remains the same at a particular temperature.

d)

(d) Particles of matter diffuse into each other on their own.

10.

On converting 25°C, 38°C and 66°C to kelvin scale, the correct sequence of temperature will be

a)

298 K, 311 K and 339 K

b)

298 K, 300 K and 338 K

c)

273 K, 278 K and 543 K

d)

298 K, 310 K and 338 K

11.

When heat is constantly supplied by a burner to boiling water, then the temperature of water during vaporisation :

a)

(a) Rises very slowly

b)

(b) Rises rapidly until steam is produced

c)

(c) First rises and then becomes constant

d)

(d) Does not rise at all

12.

correct condition to liquify a gas into liquid is

a)

low temperature low pressure

b)

low temperature high pressure

c)

high temperature low pressure

d)

high temperature high pressure

matter in our surrounding

Total questions: 12

Worksheet time: 6mins

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