Thermal Energy Transfer

Front

What is thermal energy transfer?

Back

The process of heat moving from one object or substance to another due to a temperature difference.

Front

What are the three main methods of thermal energy transfer?

Back

Conduction, convection, and radiation.

Front

Define conduction.

Back

The transfer of heat through direct contact between materials.

Front

Define convection.

Back

The transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

Define radiation.

Back

The transfer of heat in the form of electromagnetic waves, such as infrared radiation.

Front

What happens to heat when you touch a hot stove?

Back

Heat transfers from the stove to your hand by conduction.

Front

Do metal objects heat up more slowly than plastic or wooden objects?

Back

False; metal objects generally heat up more quickly due to their higher thermal conductivity.

Front

What is an example of convection?

Back

In a lava lamp, the warm part rises and the cool part sinks.

Front

What is an example of radiation?

Back

The Sun heating the Earth.

Front

True or false: Heat moves from a cooler object to a warmer object.

Back

False; heat moves from a warmer object to a cooler object.