1. What is Energy?

2. Energy is the ability to do work
Work is done when a force moves an
object over a distance in the
direction of the force
 W = F x d (Force x Distance)
Measured in Joules (j)

3. Potential Energy
Kinetic Energy

4. The Energy of Position;
 The energy an object has because of
its position. The ability to have
energy or stored energy
Examples:
 The wound spring in a wind-up toy
 The stretched bow of a bow and
arrow

5. Energy of Motion
◦ All moving objects even protons,
neutrons and electrons have it.
◦ The greater the mass of the moving
object, the greater the Kinetic Energy
Examples:
◦ The swinging of a hammer.
◦ A ball rolling down a hill

6. Energy of Motion
◦ All moving objects even protons,
neutrons and electrons have it.
◦ The greater the mass of the moving
object, the greater the Kinetic Energy
Examples:
◦ The swinging of a hammer.
◦ A ball rolling down a hill