Heat Transfer

Front

What is the process called when warm air rises and cold air sinks, creating a current?

Back

Convection

Front

What type of heat transfer occurs when a solid object, like a pot, is heated by direct contact with a heat source?

Back

Conduction

Front

What is the term for the transfer of heat through electromagnetic waves, such as sunlight?

Back

Radiation

Front

In the context of heat transfer, what is the primary mechanism by which heat is transferred in fluids (liquids and gases)?

Back

Convection

Front

What happens to the density of warm air compared to cold air?

Back

Warm air is less dense than cold air.

Front

What is an example of conduction in everyday life?

Back

Touching a hot stove with bare hands.

Front

How does radiation differ from conduction and convection in terms of heat transfer?

Back

Radiation does not require a medium to transfer heat, while conduction and convection do.

Front

What is the role of density in convection currents?

Back

Density differences drive the movement of fluids in convection currents.

Front

What is an example of radiation in everyday life?

Back

Feeling the warmth of the sun on your skin.

Front

What is the significance of the experiment with warm red dye and cold blue dye in understanding convection?

Back

It demonstrates how temperature differences affect fluid movement.