Amplify Thermal Energy C2 Flashcard

Front

What is absolute zero?

Back

Absolute zero is the temperature at which molecules have zero molecular movement.

Front

True or False: When two objects collide, the warmer one always transfers its energy to the cooler one.

Back

True

Front

What happens when a frozen Bubba-Burger is placed on a hot grill?

Back

The grill molecules are transferring energy to the Bubba-Burger.

Front

Why does the transfer of energy between two colliding objects stop?

Back

Molecules stop transferring energy when colliding systems reach equilibrium.

Front

If a 65 degree sample makes contact with a 35 degree sample, what temperature will they reach at equilibrium?

Back

50 degrees.

Front

Define thermal energy.

Back

Thermal energy is the total kinetic energy of the particles in a substance.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact no longer transfer energy between them.

Front

Explain conduction.

Back

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

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids or gases).

Front

Define radiation in terms of thermal energy transfer.

Back

Radiation is the transfer of thermal energy through electromagnetic waves.