1. What is Energy?

2. Energy
Energy can be defined as the ability to do work and cause change
There are multiple forms of energy
Kinetic
Potential
Mechanical
Sound
Thermal
Electric
Radiant-light
nuclear

3. Work Part of energy is the ability to do work
Work is defined as the transfer of energy that occurs when a force is applied over a distance
Work depends on both force and distance
You only do work on an object if that object moves

4. Kinetic energy-energy of motion
All moving objects have kinetic energy
An object’s kinetic energy depends on its speed as well as its mass
The faster an object moves, the more kinetic energy it has
If 2 objects are moving at the same speed, the object with more mass has more kinetic energy

5. Potential energy-stored energy
Did you know that energy can be present even if objects are not moving
Potential energy is stored energy due to the interaction between objects/particles; results from the position/shape of the object
3 types of potential energy: gravitational potential, elastic potential, and chemical potential

6. Gravitational potential energy is related to an object’s mass and height; the greater the mass or the higher the object is located, the greater the gravitational potential energy
Elastic potential energy is stored in objects that are stretched or compressed, such as springs or rubber bands
Chemical potential energy is stored in the chemical bonds between atoms and released when chemical reactions occur

7. Other Forms of energy
Mechanical energy is the total energy of an object/group of objects due to large-scale motions and interactions
Sound energy is the energy that sound carries
Thermal energy is energy due to the motion of particles that make up an object; moves from warmer to cooler objects
Electric energy is what an electric current carries

8. Radiant energy is energy that electromagnetic waves carry; also called light energy
Nuclear energy is stored in the nucleus of an atom