conduction, convection, radiation review

Front

What is conduction?

Back

Conduction is the transfer of heat through a material without the movement of the material itself, typically occurring in solids.

Front

What is convection?

Back

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

Front

What is radiation?

Back

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

Front

What is an insulator?

Back

An insulator is a material that reduces the flow of heat, preventing heat transfer.

Front

How does conduction occur in cooking?

Back

Conduction occurs when heat is transferred from a hot surface (like a frying pan) to the food (like eggs) in direct contact with it.

Front

What is an example of convection in everyday life?

Back

An example of convection is when hot water rises to the top of a pot while cooler water sinks to the bottom, creating a circular motion.

Front

How does a hot spoon help scoop ice cream?

Back

The warmth of the hot spoon is conducted to the ice cream, making it easier to scoop out.

Front

What is the primary mechanism of heat transfer in liquids?

Back

The primary mechanism of heat transfer in liquids is convection.

Front

What happens to the density of a fluid when it is heated?

Back

When a fluid is heated, its density decreases, causing it to rise.

Front

What is the role of thermal conductivity in conduction?

Back

Thermal conductivity is a measure of a material's ability to conduct heat; materials with high thermal conductivity transfer heat more efficiently.