Intro to Thermal Energy

Front

What does temperature measure in a substance?

Back

Temperature measures the average kinetic energy of the atoms in a substance.

Front

Why do atoms have kinetic energy?

Back

Atoms have kinetic energy because they are always vibrating.

Front

What happens to the temperature as the kinetic energy of molecules increases?

Back

As kinetic energy of the molecules in a substance increases, the temperature increases.

Front

What type of chemical reaction can be used to heat up other substances?

Back

A chemical reaction that releases energy can be used to heat up other substances.

Front

What happens to an object as its thermal energy increases?

Back

As its thermal energy increases, the object heats up.

Front

Define thermal energy.

Back

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

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion.

Front

How does thermal energy relate to temperature?

Back

Thermal energy is related to temperature as it reflects the total energy of particles, while temperature measures the average energy.

Front

What is the effect of heating a substance on its particles?

Back

Heating a substance increases the kinetic energy of its particles, causing them to move faster.

Front

What happens to the thermal energy of a substance when it cools down?

Back

When a substance cools down, its thermal energy decreases.