Heat Transfer

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object or substance to another due to a temperature difference.

Front

What are the three main types of heat transfer?

Back

The three main types of heat transfer are conduction, convection, and radiation.

Front

Define conduction.

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

Define 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

Define radiation.

Back

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

Front

What happens to warm water in a swimming pool?

Back

Warm water rises to the surface due to convection, creating a circulation pattern.

Front

How does a toaster heat air?

Back

A toaster heats air through convection, as the hot elements warm the air around them.

Front

What type of heat transfer occurs when you touch a hot stove?

Back

Conduction occurs when you touch a hot stove, as heat transfers directly from the stove to your hand.

Front

Why does warm air rise in a room?

Back

Warm air rises in a room due to convection, as it is less dense than cooler 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, even when you are not in direct contact with it.