ICSE Class 8 Physics by Pavan | Practice Test to Test Your Knowledge
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ICSE Class 8 Physics

ICSE Class 8 Physics

Complete mock test including Force, Energy, Light, and Sound fundamentals. Contains numerical problems and conceptual questions.

2025-07-19
Pavan Pavan
ICSE Physics Class 8 Grade 8

Duration

30 min

Questions

30

Marking

Negative

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Questions Preview

Which of the following describes the particles in a solid?

A
They are free to move and spread out.
B
They vibrate in fixed positions.
C
They are spaced far apart and move freely.
D
They move randomly but remain in fixed positions.

In which state of matter do the particles have the least amount of kinetic energy?

A
Gas
B
Solid
C
Liquid
D
Plasma

In which state of matter do particles have the greatest freedom of movement?

A
Solid
B
Liquid
C
Gas
D
Plasma

What is the primary characteristic of the particles in a liquid?

A
They vibrate in place.
B
They are closely packed but can slide past each other.
C
They are very far apart.
D
They move in straight lines.

Which state of matter has the most compact arrangement of particles?

A
Gas
B
Solid
C
Liquid
D
Plasma

Which state of matter has the highest energy content?

A
Solid
B
Liquid
C
Gas
D
Plasma

Which state of matter has the lowest energy content?

A
Solid
B
Gas
C
Liquid
D
Plasma

What happens to the particles of a solid when it melts?

A
The particles gain energy and move faster.
B
The particles lose energy and slow down.
C
The particles stay in fixed positions.
D
The particles are tightly packed and remain stationary.

What is the process of changing a liquid into a gas called?

A
Melting
B
Boiling
C
Evaporation
D
Sublimation

What is the process called when a gas changes directly into a solid?

A
Condensation
B
Sublimation
C
Deposition
D
Freezing

What happens during evaporation?

A
Energy is absorbed, causing particles to move faster.
B
Energy is released, causing particles to slow down.
C
Energy remains constant.
D
Energy is not required.

Which of the following is an example of sublimation?

A
Ice turning into water
B
Water turning into steam
C
Dry ice turning into gas
D
Water freezing into ice

Which process is responsible for the formation of dew on grass?

A
Condensation
B
Evaporation
C
Fusion
D
Sublimation

Which of the following is an example of freezing?

A
Water changing to ice
B
Water boiling
C
Ice melting
D
Dry ice turning into a gas

Which state of matter undergoes the process of fusion?

A
Solid to liquid
B
Liquid to gas
C
Gas to liquid
D
Solid to gas

What happens when a substance undergoes melting?

A
The substance changes from a solid to a liquid by gaining energy.
B
The substance changes from a liquid to a solid by releasing energy.
C
The substance changes from a gas to a solid by releasing energy.
D
The substance changes from a gas to a liquid by absorbing energy.

Which of the following is NOT a form of vaporization?

A
Boiling
B
Evaporation
C
Melting
D
Sublimation

Which of the following statements is correct regarding the change of state?

A
Evaporation only occurs when the liquid is boiling.
B
Vaporization occurs only at the surface of the liquid.
C
Melting occurs when a liquid changes into a gas.
D
Condensation is the process where a solid turns into a gas.

What happens during condensation?

A
A gas turns into a liquid by releasing heat.
B
A liquid turns into a solid by releasing heat.
C
A solid turns into a gas by gaining heat.
D
A gas turns into a solid by gaining heat.

Which of the following is an example of condensation?

A
Water vapour on a mirror after a hot shower
B
Ice turning into water
C
Water freezing into ice
D
Water evaporating from the surface of a pond

Which process involves a solid turning directly into a gas?

A
Condensation
B
Evaporation
C
Sublimation
D
Fusion

During sublimation, a substance changes from:

A
Liquid to gas
B
Solid to liquid
C
Solid to gas
D
Gas to solid

What is deposition in terms of phase change?

A
When a gas turns into a liquid
B
When a solid turns into a gas
C
When a gas turns into a solid
D
When a liquid turns into a gas

Which of the following processes results in the formation of frost?

A
Sublimation
B
Deposition
C
Evaporation
D
Condensation

Which of the following is an example of the process of fusion?

A
Ice turning into water
B
Water turning into steam
C
Dry ice turning into gas
D
Water freezing

Which state of matter undergoes deposition?

A
Gas to liquid
B
Gas to solid
C
Liquid to solid
D
Solid to liquid

The process in which liquid changes into gas below its boiling point is called:

A
Evaporation
B
Condensation
C
Boiling
D
Sublimation

Which of the following statements is true about vaporization?

A
It only happens at the surface of the liquid.
B
It happens only when the liquid reaches its freezing point.
C
It occurs when liquid changes into a gas at all temperatures.
D
It happens when a gas changes into a liquid.

The change of state from gas to liquid is called:

A
Condensation
B
Evaporation
C
Melting
D
Sublimation

Which process is responsible for the formation of a snowflake?

A
Condensation
B
Freezing
C
Deposition
D
Sublimation