3.2 Heat Transfer flashcards

Heat energy is not a

substance

Conductors

Materials like metals (gold, copper, aluminum, nickel) that allow heat to travel through them efficiently.

Insulators

Materials like foam and plastics that slow down the transfer of heat.

Conduction

Heat transfer between two substances in direct contact, such as roasting a marshmallow.

Thermal radiation

Heat transfer in the form of waves, like microwaves and x-rays.

Convection

Heat transfer through fluids, moving away from a hot portion of the fluid, like boiling water.

Temperature

A measure of how hot or cold a substance is.

Transmit

To send energy from one place to another.

Transfer

To move an object from one place to another.

Radiant energy

Energy, such as light, that does not need matter to travel

Heat is a form of

energy

Heat energy moves from a _____ object to a ____ object.

hot; cooler

The Earth absorbing sunlight and sending heat back into space is an example of:

thermal radiation