8th Grade Unit 2 Review

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion. It is the energy that an object possesses due to its movement.

Front

What two forces are required for generators and electric motors to work?

Back

Electricity and magnetism are the two forces required for generators and electric motors to function.

Front

What types of energy are transformed by a microwave oven?

Back

A microwave oven transforms electrical energy into light energy, heat energy, and mechanical energy, but not solar energy.

Front

What is the energy conversion when burning wood for a fire?

Back

The energy conversion when burning wood is from chemical energy to thermal energy.

Front

What is the initial energy transformation in an electric motor?

Back

In an electric motor, the energy transformation begins as electrical energy and becomes mechanical energy.

Front

Define energy transformation.

Back

Energy transformation is the process of changing energy from one form to another, such as from electrical energy to thermal energy.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state, such as a rock at the top of a hill.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on an object's position.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of particles in an object.

Front

What is light energy?

Back

Light energy is a form of energy that is visible to the human eye and is produced by the vibrations of electrically charged particles.