Amplify Thermal Energy C2 Flashcard

Front

What is absolute zero?

Back

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

Front

Why does red food coloring mix faster than blue food coloring in hot water?

Back

The red food coloring mixes faster because it is in the hot water.

Front

What happens when a 65 degree sample contacts a 35 degree sample?

Back

The 65 degree sample will get hotter with energy from the 35 degree sample until they are equal.

Front

How does kinetic energy transfer between two objects in contact?

Back

Kinetic energy transfers from fast-moving molecules to slower-moving molecules.

Front

What is equilibrium in the context of energy transfer?

Back

Equilibrium is the state when colliding systems reach the same temperature and stop transferring energy.

Front

What is thermal energy?

Back

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

Front

What is 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 and gases).

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 molecular movement?

Back

As temperature increases, molecular movement increases.