Heat Transfer Practice

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when heat moves from a hotter object to a cooler one through physical touch.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of liquids and gases. It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks.

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, meaning it can occur in a vacuum.

Front

Example of conduction in everyday life?

Back

Touching a hot stove or holding a metal spoon in a pot of hot soup.

Front

Example of convection in everyday life?

Back

Boiling water in a pot, where hot water rises to the top and cooler water sinks.

Front

Example of radiation in everyday life?

Back

Feeling the warmth of the sun on your skin or heat from a campfire.

Front

What happens when you touch a hot object?

Back

You experience conduction, where heat transfers from the hot object to your skin, potentially causing burns.

Front

How does walking on warm sand demonstrate conduction?

Back

Your feet are in direct contact with the warm sand, allowing heat to transfer from the sand to your feet.

Front

What type of heat transfer occurs in liquids and gases?

Back

Convection occurs in liquids and gases due to the flow of the fluid.

Front

What is the main difference between conduction and convection?

Back

Conduction requires direct contact between materials, while convection involves the movement of fluids.