Chemistry: Review #3

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when particles collide with each other, transferring energy.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer, less dense areas of a fluid rise and cooler, denser areas sink.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves. It does not require a medium and can occur in a vacuum.

Front

What type of heat transfer occurs when you touch a hot stove?

Back

Conduction.

Front

What type of heat transfer occurs when warm air rises and cool air sinks?

Back

Convection.

Front

What type of heat transfer is used by solar panels to collect energy?

Back

Radiation.

Front

In which type of heat transfer does energy move through electromagnetic waves?

Back

Radiation.

Front

What is the sequence of energy flow from sunlight to electrical energy in solar panels?

Back

Light energy is converted to electrical energy.

Front

What happens to the particles in a substance when it is heated?

Back

The particles gain energy, move faster, and usually spread apart, causing the substance to expand.

Front

What is an example of conduction in everyday life?

Back

Touching a metal spoon that has been sitting in a hot pot of soup.