Question

Test or worksheet of science

Answer 1

1)

==> Particles of matter have intermolecular spaces between them.

==> Particles of matter exert intermolecular force on each other.

2)

Effect of temperature on kinetic energy:

==> When temperature increases, kinetic energy increases.

==> When temperature decreases, kinetic energy decreases.

3)

Gases are compressible because:

==> They have more spaces between thier molecules.

==> They have almost negligible intermolecular force between thier molecules.

4)

CNG = Compressed Natural Gas

LPG = Liquified Petroleum Gas

5)

==> The particles of sugar disappeard when we stirred it for a while.

==> The taste of the water changes because the sugar particles are now present in the Intermolecular spaces between the water molecules.

6)

Lighted incense stick gives smell even if we are far away from it because its molecules travels through the air and spread thought out a region due to which we smell it.

7)

a) Liquid

b) Solid

Answer 2

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1)

➦ Particles of matter have intermolecular spaces between them.

➦ Particles of matter exert intermolecular force on each other.

2)

Effect of temperature on kinetic energy:

➦When temperature increases, kinetic energy increases.

➦ When temperature decreases, kinetic energy decreases.

3)

Gases are compressible because:

➦ They have more spaces between thier molecules.

➦ They have almost negligible intermolecular force between thier molecules.

4)

CNG = Compressed Natural Gas

LPG = Liquified Petroleum Gas

5)

➦ The particles of sugar disappeard when we stirred it for a while.

➦ The taste of the water changes because the sugar particles are now present in the Intermolecular spaces between the water molecules.

6) Lighted incense stick gives smell even if we are far away from it because its molecules travels through the air and spread thought out a region due to which we smell it.

7)

• Liquid
• Solid