Thermal Energy Transfer

Front

What happens to water when it freezes?

Back

Water expands when it freezes.

Front

What is the primary source of energy for most of the energy we use?

Back

The primary source of energy is radiation from the sun.

Front

What is conduction?

Back

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

Front

What is an example of conduction in everyday life?

Back

Ironing a shirt is an example of conduction.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves.

Front

How does roasting marshmallows work?

Back

Heat from the fire is radiated into the marshmallow.

Front

What happens to popcorn kernels when heated?

Back

The kernels expand when heated.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids and gases).

Front

What is an example of convection?

Back

Boiling water is an example of convection.

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object due to their motion.