Heat Flashcard 21-22

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as light or infrared radiation. It does not require a medium to travel through.

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 convection?

Back

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

Front

Example of radiation in everyday life?

Back

Heat lamps and microwaving food are common examples of radiation.

Front

What happens to air when it is heated?

Back

When air is heated, it expands and becomes less dense, causing it to rise.

Front

What is the best example of conduction?

Back

Touching a hot handle and getting burned is the best example of conduction.

Front

How does convection work in a two-story house?

Back

In a two-story house, warm air from the heating unit expands, rises to the upper floor, and circulates back down, warming the whole house.

Front

What is the transfer of heat by direct contact?

Back

The transfer of heat by direct contact is called conduction.

Front

What is an example of convection?

Back

A hot air balloon rising and falling is an example of convection.

Front

What is the primary method of heat transfer in a microwave?

Back

The primary method of heat transfer in a microwave is radiation.