Heat Transfer Flashcard

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when two objects at different temperatures touch each other, allowing heat to flow from the hotter object to the cooler one.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer, less dense fluid rises and cooler, denser 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

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It is directly proportional to the mass of the object and the square of its velocity.

Front

How does heat flow between two objects?

Back

Heat flows from the object with a higher temperature to the object with a lower temperature until thermal equilibrium is reached.

Front

What happens to air when it is heated?

Back

When air is heated, it becomes less dense and rises. This process is known as convection.

Front

What is an example of conduction in everyday life?

Back

Ironing a shirt is an example of conduction, where heat is transferred from the iron to the fabric.

Front

What is an example of convection in everyday life?

Back

A common example of convection is the way warm air rises and cool air sinks in a room, creating a circulation of air.

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 is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature, resulting in no net heat flow between them.