Conduction, Convection, & Radiation

Front

What is conduction in the context of heat transfer?

Back

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

Front

Provide an example of conduction in everyday life.

Back

An ice cube melting in a person's hand is an example of conduction.

Front

What is convection in heat transfer?

Back

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

Front

Give an example of convection in action.

Back

Warm air rising and cool air sinking is an example of convection.

Front

What is radiation in the context of heat transfer?

Back

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

Front

Provide an example of radiation in everyday life.

Back

The heat from a lamp warming a lizard is an example of radiation.

Front

What is the general rule for heat transfer between areas of different temperatures?

Back

Heat transfers from an area of high temperature to an area of low temperature.

Front

How does solar radiation affect objects on the ground?

Back

Solar radiation heats surfaces like driveways, which can then transfer heat to objects in contact with them, such as a crayon melting.

Front

What role does density play in convection currents?

Back

In convection currents, warmer, less dense fluid rises while cooler, denser fluid sinks, creating a cycle of movement.

Front

What is the difference between conduction and convection?

Back

Conduction involves direct contact between materials, while convection involves the movement of fluids.