Heat Transfer Flashcard

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm air rises while cool air sinks, creating a circulation pattern.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. Heat moves from the hotter object to the cooler one.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through, such as how the sun warms the Earth.

Front

How does heat transfer occur when roasting marshmallows?

Back

Heat from the fire is radiated into the marshmallow.

Front

What is the primary source of energy for most processes on Earth?

Back

The primary source of energy is radiation from the sun.

Front

What type of heat transfer occurs when walking on warm sand?

Back

Conduction occurs when heat is transferred from the warm sand to your bare feet.

Front

What type of heat transfer is responsible for warming the sand by the sun?

Back

Radiation is responsible for warming the sand as the sun's rays directly heat it.

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 the temperature of a substance during conduction?

Back

During conduction, the temperature of the hotter substance decreases while the cooler substance increases until thermal equilibrium is reached.

Front

How does convection affect weather patterns?

Back

Convection currents in the atmosphere can lead to the formation of clouds and storms as warm air rises and cool air sinks.