Heat Transfer

Front

What is the process of heat transfer through electromagnetic waves called?

Back

Radiation

Front

In heat transfer, heat always flows from which type of substance to which type of substance?

Back

Hotter to colder

Front

What occurs when ice cubes are placed in a glass of warm water?

Back

Heat is transferred from the warmer water to the ice cubes.

Front

Define convection in the context of heat transfer.

Back

Convection is the process where a hot liquid or air expands, becomes less dense, and rises, while cooler, denser liquid or air sinks.

Front

What natural phenomenon causes warm air over the beach to rise while cooler air from the ocean moves in?

Back

Convection.

Front

What is conduction in terms of heat transfer?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

How does the density of a fluid affect its ability to rise or sink during convection?

Back

Hot fluids are less dense and rise, while cooler fluids are more dense and sink.

Front

What is the primary driving force behind convection currents in the atmosphere?

Back

Differences in temperature and density.

Front

What is the role of the sun in the process of radiation?

Back

The sun emits radiation that transfers heat to the Earth and its atmosphere.

Front

How does the concept of thermal equilibrium relate to heat transfer?

Back

Thermal equilibrium occurs when two substances reach the same temperature, resulting in no net heat transfer between them.