Thermal Energy Transfer Practice

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 through touch.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids or gases). It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks, creating a circulation pattern.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves. It does not require a medium to travel through, allowing heat to be transferred through empty space.

Front

Example of conduction in everyday life?

Back

Ironing clothes is an example of conduction, where the heat from the iron is transferred directly to the fabric.

Front

Example of convection in everyday life?

Back

Boiling water is an example of convection, where hot water rises to the top and cooler water sinks to the bottom.

Front

Example of radiation in everyday life?

Back

The warmth felt from the sun is an example of radiation, as heat travels through space to reach us.

Front

What does the Law of Conservation of Energy state?

Back

The Law of Conservation of Energy states that energy cannot be created nor destroyed, only converted from one form to another.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

Front

How does temperature affect thermal energy transfer?

Back

Higher temperatures increase the kinetic energy of particles, leading to faster thermal energy transfer.

Front

What is an insulator?

Back

An insulator is a material that resists the flow of heat, preventing thermal energy transfer.