Thermal Energy Review

Front

What is convection?

Back

Convection is the transfer of thermal energy in a liquid or gas where the warmer substance rises and the cooler substance sinks, forming a current.

Front

Why does water get cold when ice is added?

Back

The heat from the water moves into the ice, causing the water to cool down.

Front

What is radiation?

Back

Radiation is the transfer of energy by electromagnetic waves.

Front

In which direction does thermal energy move?

Back

Thermal energy always moves from warmer objects to cooler objects.

Front

What happens to the temperature in cup A and cup B in a heat flow experiment with an aluminum bar?

Back

The temperature in cup A will decrease and the temperature in cup B will increase.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials.

Front

What is an example of convection?

Back

An example of convection is the way warm air rises and cool air sinks in a room, creating a current.

Front

What is the role of insulation?

Back

Insulation reduces the transfer of thermal energy between objects, helping to maintain temperature.

Front

What is the difference between conduction and convection?

Back

Conduction is heat transfer through direct contact, while convection is heat transfer through the movement of fluids.