Energy Conversion and Conservation - Lesson 15

Front

In what unit is energy measured?

Back

Joules

Front

What is the energy of a compound that changes as its atoms are rearranged?

Back

Chemical energy

Front

What do sound waves need to travel through?

Back

Medium such as air or wood

Front

What type of energy is the sum of kinetic and potential energy?

Back

Mechanical energy

Front

What happens to mechanical energy on a roller coaster as it goes down a hill?

Back

It transforms into sound and thermal energy

Front

What is the definition of energy?

Back

The ability to do work or cause change.

Front

What is kinetic energy?

Back

The energy of an object due to its motion.

Front

What is potential energy?

Back

The energy stored in an object due to its position or arrangement.

Front

What is thermal energy?

Back

The total kinetic energy of particles in a substance.

Front

What is the law of conservation of energy?

Back

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