CONDUCTION,CONVECTION AND RADIATION

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when faster-moving particles collide with slower-moving ones, transferring energy.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves or rays, such as light or heat, without the need for a medium.

Front

Give an example of conduction.

Back

An example of conduction is a metal spoon getting hot when placed in a hot bowl of soup.

Front

Give an example of convection.

Back

An example of convection is warm air rising near the ceiling of a room, causing cooler air to move down.

Front

Give an example of radiation.

Back

An example of radiation is feeling warmth from the sun on your skin.

Front

What is the original source of most energy used on Earth?

Back

The original source of most energy that people use is energy that reaches Earth by radiation from the sun.

Front

How does heat transfer in a campfire?

Back

Heat from a campfire transfers to your hands primarily through radiation.

Front

What happens to air when it is heated?

Back

When air is heated, it becomes less dense and rises, creating convection currents.

Front

What is the role of particles in conduction?

Back

In conduction, particles collide and transfer energy from the hotter area to the cooler area.