Unit 7 Test Review

Front

What happens to the temperature of hamburger meat when it is placed in the refrigerator?

Back

Heat transfers from the air in the refrigerator to the hamburger, causing its temperature to rise.

Front

What is the process of heat transfer through fluids (liquids and gases) called?

Back

Convection.

Front

In which direction does heat transfer occur?

Back

Heat transfers from an area of high temperature to an area of low temperature.

Front

What type of heat transfer occurs when boiling water?

Back

Convection.

Front

What does it mean if an object has more thermal energy?

Back

It has more particles at a given temperature.

Front

Define conduction.

Back

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

Front

Define convection.

Back

Convection is the transfer of heat by the movement of fluids (liquids and gases).

Front

Define radiation.

Back

Radiation is the transfer of heat through electromagnetic waves.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance.

Front

What is the relationship between temperature and thermal energy?

Back

As temperature increases, the thermal energy of the substance also increases.