Unit 2 Energy 2024

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm air rises and cool air sinks, creating a cycle.

Front

What happens to the temperature of an object when its atoms move faster?

Back

The temperature of the object increases as the atoms move faster.

Front

How does the density of warm air compare to cold air?

Back

Warm air is less dense than cold air, which causes it to rise.

Front

What is temperature a measure of?

Back

Temperature is a measure of the average kinetic energy of the individual particles in an object.

Front

What two factors affect kinetic energy?

Back

Kinetic energy is affected by mass and velocity.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of all the particles in an object.

Front

What is conduction?

Back

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

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as light.

Front

What is the relationship between temperature and kinetic energy?

Back

As the temperature of an object increases, the average kinetic energy of its particles also increases.

Front

What is a convection current?

Back

A convection current is a circular movement of fluid caused by the rising of warm fluid and the sinking of cooler fluid.