Energy Types and Principles

What is the unit of measurement for energy?

What type of energy is involved when a force moves an object, causing it to move a certain distance?

What is the term for the unwanted or undesired output energy?

What is the law that states that energy cannot be created or destroyed, only transferred or transformed?

What type of energy is involved in the example of an electric toothbrush?

What is the term for the desired output energy?

What type of energy has types including Chemical, Elastic, Gravitational, Nuclear, and Magnetic?

What is the measure of how much input energy is converted into useful output energy?

What is the term for when energy changes from one form to another?

What is the term for when energy is passed from one object to another?

Kinetic Energy has several types: Sound, Heat, Electrical, Mechanical, Radiant, and Light
Potential Energy has several types: Chemical, Elastic, Gravitational, Nuclear, and Magnetic

Energy is measured in joules
Energy can be transformed, meaning it changes from one form to another
Energy can be transferred, meaning it is passed from one object to another
The law of conservation of energy states that energy cannot be created or destroyed, only transferred or transformed

Useful energy is the desired output energy
Wasted energy is the unwanted or undesired output energy
Energy efficiency is the measure of how much input energy is converted into useful output energy
Example: electric toothbrush - input energy is electrical, output energy is kinetic, wasted energy is heat and sound