Heat Transfer: Conduction, Convection, Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through a solid material without the movement of the material itself. It occurs when two objects at different temperatures are in direct contact.

Front

What is convection?

Back

Convection is the transfer of heat through fluids (liquids and gases) caused by the movement of the fluid itself. Warm fluid rises while cold fluid sinks, creating a circulation pattern.

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, allowing heat to be transferred through empty space.

Front

Example of conduction in everyday life?

Back

Holding a metal spoon in a hot pot of soup. The heat from the soup transfers to the spoon, making it hot.

Front

Example of convection in everyday life?

Back

A lava lamp where the wax rises when heated and falls when cooled, demonstrating the movement of fluid due to temperature differences.

Front

Example of radiation in everyday life?

Back

Feeling the warmth of the sun on your skin, which is heat transferred through radiation.

Front

What role does convection play in weather systems?

Back

Convection causes warm air to rise and cold air to fall, leading to the formation of wind and weather patterns.

Front

How does a radiator heat a room?

Back

A radiator heats the air around it through convection. Warm air rises, and cooler air moves in to take its place, creating a circulation of warm air in the room.

Front

What is the main difference between conduction and convection?

Back

Conduction occurs in solids through direct contact, while convection occurs in fluids through the movement of the fluid itself.

Front

What is an example of convection in the ocean?

Back

The Gulf Stream, which is a warm ocean current that moves warm water from the equator towards the poles.