Thermal Energy MAKEUP FLASHCARD

Front

What happens to the molecules of an object when it gets colder?

Back

The molecules move slower.

Front

What is the average kinetic energy of the molecules in a sample?

Back

It is a measure of how fast the molecules are moving, represented by a numerical value.

Front

Can energy be created or destroyed?

Back

False. Energy cannot be created or destroyed; it can only change forms.

Front

What is the correct temperature order between two samples if Sample A is hotter than Sample B?

Back

Sample A: hotter, Sample B: colder.

Front

What happens to the molecules of an object when it gets hotter?

Back

The molecules move faster.

Front

Define thermal energy.

Back

Thermal energy is the total kinetic energy of the molecules in an object.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion.

Front

How does temperature relate to the motion of molecules?

Back

Higher temperature means faster-moving molecules, while lower temperature means slower-moving molecules.

Front

What is the relationship between thermal energy and temperature?

Back

As thermal energy increases, the temperature of an object also increases.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.