Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of the particles in an object.

Front

What is a conductor?

Back

A conductor is a material that allows heat or electricity to flow through it easily. Examples include metals like copper and aluminum.

Front

What is an insulator?

Back

An insulator is a material that does not allow heat or electricity to flow through it easily. Examples include rubber, glass, and wood.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials. It occurs when heat moves from a hotter object to a cooler one.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids or gases). It occurs when warmer areas of a liquid or gas rise and cooler areas sink.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves. It does not require a medium, so it can occur in a vacuum.

Front

How does increasing thermal energy affect molecules?

Back

Increasing thermal energy causes molecules to move faster, which increases their kinetic energy.

Front

What is the role of the sun in thermal energy?

Back

The sun is a primary source of thermal energy for the Earth, providing heat and light that warms the planet.

Front

What is an example of convection in everyday life?

Back

An example of convection is the way warm air rises and cool air sinks in a room, creating a circulation of air.

Front

What happens to thermal energy when ice melts?

Back

When ice melts, thermal energy is absorbed, causing the solid ice to change into liquid water.