Types of Heat Transfer

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 molecular collisions.

Front

What is convection?

Back

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

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

Touching a hot stove or sand transfers heat directly to your skin through conduction.

Front

Example of convection in everyday life?

Back

Heating water in a pot causes convection currents, where hot water rises and cooler water sinks.

Front

Example of radiation in everyday life?

Back

Feeling warmth from the Sun or a campfire is an example of heat transfer through radiation.

Front

What is the primary method of heat transfer in solids?

Back

Conduction is the primary method of heat transfer in solids due to direct contact between particles.

Front

What is the primary method of heat transfer in fluids?

Back

Convection is the primary method of heat transfer in fluids, as it involves the movement of the fluid itself.

Front

How does a toaster oven use convection?

Back

A toaster oven heats the air inside, creating cycles of hot air that circulate and warm the food.

Front

What happens to air when it is heated?

Back

When air is heated, it becomes less dense and rises, while cooler air sinks, creating convection currents.