Changes in States of Matter

Front

What state of matter has no definite shape but a definite volume?

Back

Liquid

Front

What happens to the kinetic energy of particles when the thermal energy of a substance increases?

Back

The kinetic energy of the particles increases.

Front

What change of state occurs when the thermal energy of a liquid decreases?

Back

Freezing

Front

What is the difference between freezing and melting?

Back

During freezing, the kinetic energy of liquid particles decreases. During melting, the kinetic energy of solid particles increases to change to a liquid.

Front

What is the state of matter that has a definite shape and volume?

Back

Solid

Front

What is the state of matter that has no definite shape and no definite volume?

Back

Gas

Front

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

Back

The particles gain kinetic energy and move apart.

Front

What is condensation?

Back

Condensation is the process where gas turns into a liquid as it loses thermal energy.

Front

What is sublimation?

Back

Sublimation is the process where a solid changes directly into a gas without becoming a liquid.

Front

What is the role of thermal energy in changing states of matter?

Back

Thermal energy affects the kinetic energy of particles, leading to changes in state.