Conduction, Convection, Radiation

Front

What is conduction in terms 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

What is convection in terms of heat transfer?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases), where warmer, less dense areas rise and cooler, denser areas sink.

Front

What is radiation in terms of heat transfer?

Back

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

Front

How does conduction occur in solids?

Back

In solids, conduction occurs as vibrating particles transfer kinetic energy to neighboring particles, resulting in heat flow.

Front

What is an example of conduction in everyday life?

Back

An example of conduction is holding a metal spoon in a hot pot; the heat from the pot transfers to the spoon through direct contact.

Front

What is an example of convection in a room?

Back

An example of convection in a room is warm air rising to the ceiling while cooler air moves down to replace it, creating a circulation pattern.

Front

What is an example of radiation in everyday life?

Back

An example of radiation is feeling the warmth of the sun on your skin, which is heat transferred through electromagnetic waves.

Front

What role does density play in convection?

Back

In convection, warmer fluids become less dense and rise, while cooler fluids are denser and sink, creating a convection current.

Front

How does the sun transfer heat to the Earth?

Back

The sun transfers heat to the Earth primarily through radiation, as sunlight travels through the vacuum of space.

Front

What is the primary method of heat transfer in liquids?

Back

The primary method of heat transfer in liquids is convection, as the movement of the liquid facilitates heat distribution.