CFA#2 Review

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm air or liquid rises, while cooler air or liquid sinks, creating a circulation pattern.

Front

What happens to warm air in convection?

Back

Warm air rises.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through.

Front

What type of heat transfer occurs when you touch a warm mug?

Back

Conduction occurs when you touch a warm mug, as heat is transferred directly from the mug to your hand.

Front

What has the greatest kinetic energy?

Back

A car driving down a hill has the greatest kinetic energy compared to a person running or a ball rolling down a hill.

Front

What does a graph showing increasing speed indicate?

Back

A graph demonstrating increasing speed indicates that the object is accelerating.

Front

What is conduction?

Back

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

Front

What is an example of convection?

Back

An example of convection is warm air rising and cool air sinking in a room.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

What is the relationship between speed and kinetic energy?

Back

The kinetic energy of an object increases with the square of its speed.