Intro to Thermal Energy

Front

What happens to a substance when thermal energy is removed from it?

Back

The substance may freeze.

Front

What does temperature measure in a substance?

Back

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

Front

What effect does removing thermal energy have on the vibration of atoms?

Back

Removing thermal energy causes the atoms to vibrate slower.

Front

Why do atoms have kinetic energy?

Back

Atoms have kinetic energy because they are always vibrating.

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

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 is the total energy of all particles, while temperature measures the average energy of those particles.

Front

What happens to the motion of particles in a substance as it heats up?

Back

As a substance heats up, the motion of its particles increases.

Front

What is the relationship between thermal energy and state changes in matter?

Back

Thermal energy can cause changes in the state of matter, such as melting or freezing.