10th Class Physics - Question & Answers

10th Class Physical Science - Question Bank

Define frost. When do frost form?

Frost : Frost is a solid deposition of water

vapour from humid air. It is formed when

temperature of a solid surface is below the

freezing point of water and also below the

frost point.

What is rain?

Rain : Rain is liquid water in the form of

droplets that have condensed from

atmospheric water vapour.

Define deposition.

Deposition : The process in which a

gaseous phase changes to solid phase

directly with out passing through an

intermediate liquid phase is called

deposition. It is known as resublimation.

Define latent heat.

Latent heat : The quantity of heat energy

required to change unit mass of substance

from a lower state to higher state, without

rising in temperature is called Latent heat.