Review Thermal Energy

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in a substance, which determines its temperature.

Front

What happens to the molecules in colder objects?

Back

Molecules in colder objects move slowly.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids and gases) where hot fluids rise and cold fluids sink.

Front

What is conduction?

Back

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

Front

What is radiation?

Back

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

Front

In convection, what rises and what sinks?

Back

Hot gases/liquids will rise and cold gases/liquids will sink.

Front

How does thermal energy move in a hot air balloon?

Back

Thermal energy moves from the heat source to the cooler surrounding air, causing the air to rise and inflate the balloon.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion; it increases as an object moves faster.

Front

What is an example of radiation?

Back

The sun warming a car on a hot summer day is an example of radiation.

Front

What is an example of conduction?

Back

An example of conduction is a metal spoon getting hot when placed in a hot soup.