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 causes hot and cold water to become the same temperature when mixed?

Back

Heat (thermal) energy from the hot water is transferred to the cold water.

Front

In heat transfer, heat always flows from which substance to which substance?

Back

Heat always flows from the hotter substance to the colder substance.

Front

What is the change in temperature if a piece of aluminum foil cools from 100° to 50°?

Back

The change in temperature is 50°.

Front

What is specific heat?

Back

Specific heat is the amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.

Front

What is the symbol for specific heat?

Back

The symbol for specific heat is 'c'.

Front

Why is low specific heat desirable for a cooking skillet?

Back

Low specific heat is desirable because it allows the skillet to change temperature quickly.

Front

What is conduction in heat transfer?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is convection in heat transfer?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases).

Front

What is radiation in heat transfer?

Back

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