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What is Energy

Energy is the ability to cause change.
 Change in ANYTHING

There are two general types of energy
 Kinetic energy
 Potential energy
Kinetic Energy
Kinetic Energy is energy of an object
due to motion
 The amount of kinetic energy an object
has depends on its mass and speed
 As mass and speed increase so does
kinetic energy

Potential Energy

Potential Energy is the energy that an
object has due to its position, condition,
or chemical composition.
 Gravitational potential energy- a ball on a hill
 Condition- stretching a rubber band
 Chemical- depends on the chemical bonds
○ As bonds break and new bonds form between
atoms, energy can be absorbed or released
An object can have kinetic and
potential energy at the same
time.

When a punter punts the ball it is flying
through the air with kinetic energy. As it
goes up and down there is a change in
gravitational potential energy.
Shape Shifting Energy
Energy takes many different forms
 Mechanical Energy

 The sum of an objects kinetic and potential
energy.

Sound Energy
 Kinetic energy caused by the vibration of
particles in a medium

Electromagnetic Energy
 Energy transmitted through space in the form of
electromagnetic waves
 Visible light, x-rays, microwaves
Shape Shifting Energy

Electrical Energy
 Energy that results from the position or motion of charged
particles

Chemical Energy
 Potential energy due to the arrangement of atoms in a
molecule

Thermal Energy
 Kinetic energy of particles
 The faster particles move and the more particles there
are, the higher the thermal energy
 Heat is transferred from an object at a higher temperature
to an object at a lower temperature

Nuclear Energy
 Energy that comes from the breaking apart of a nucleus of
an atom
Transformers

Energy can change from one form to
another
 Often times its changes into multiple forms
 Ex. Fireworks, food
Law of Conservation of Energy

Just like mass, energy cannot be
created or destroyed