Convection, Conduction, Radiation

Front

What is the definition of conduction?

Back

Conduction is the transfer of heat through a material without the movement of the material itself, typically occurring in solids.

Front

What is the definition of convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What is the definition of radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, which can occur in a vacuum.

Front

How does the sun heat the Earth's atmosphere?

Back

The sun heats the ground, which in turn heats the air above it, causing the air to rise and create circulation.

Front

What happens to air when it is heated?

Back

Heated air becomes less dense and rises, leading to convection currents.

Front

What is an example of conduction in everyday life?

Back

Touching a hot stove and getting burned is an example of conduction.

Front

How does a hot air balloon rise?

Back

A hot air balloon rises because the air inside the balloon is heated, becoming less dense than the cooler air outside.

Front

What is the role of density in convection?

Back

In convection, warmer, less dense fluid rises while cooler, denser fluid sinks, creating a circulation pattern.

Front

What is an example of radiation in everyday life?

Back

Feeling warmth from the sun on your skin is an example of radiation.

Front

How does pavement cook an egg on a hot day?

Back

The pavement conducts heat to the egg, cooking it due to the high temperature of the pavement.