Download Types of Energy and Transformations

Source of almost all the energy is the…
Sun
Wood, coal, petroleum and natural
gas come from the sun. The USA gets 90% of
its energy from fossil fuel.
Energy is the ability to do work
 Can take the shape of many different
forms.
Two Categories: Kinetic or Potential
 Kinetic Energy is energy of motion– of waves,
electrons, atoms, molecules, substances and
objects
 Potential Energy is stored energy and the
energy of position– gravitational energy.
There are several forms of potential energy
Types of Potential Energy
 stored
energy
Burning is a chemical change
Our bodies use food and give off energy
in the form of body heat.
 An adult radiates heat energy equal to
100 W light bulb.
All the energy that is transferred through
living organisms.
Mechanical Energy (potential)
Stored in objects by tension
Compressed springs and stretched
rubber bands are examples of
stored mechanical energy.
Sometimes known as elastic
energy.
Nuclear Energy (potential)
-stored in an atom’s nucleus
Fusion- the combining of nuclei
Ex. The sun or any star
Fission- the splitting of a nucleus
Like in the bombs or nuclear
reactors
Gravitational Energy (Potential)
Energy stored in an object’s height.
The higher and heavier the object, the
more gravitational energy is stored.
When you ride a bicycle down a steep hill
and pick up speed, gravitational energy is
being converted to motion energy.
Light Energy (Radiant)
- electromagnetic
light waves
Thermal Energy
how fast matter is moving
movement of thermal energy is heat
Measured by temperature
Temperature is a measure of how
much thermal energy (or heat) is in
matter
Types of Kinetic Energy
Motion Energy
energy stored in the movement of objects.
 The faster they move, the more energy is
stored.
 It takes energy to get an object moving, and
energy is released when an object slows
down.
 Wind is an example of motion energy.

Sound
Energy
-
vibrational energy
loudness
The
depends on
how much energy the sound
wave has.
Electric Energy
Static electricity- is a build up
of electrons
Current electricity is the
movement or flow of electrons
The Law of Conservation of
Energy states. . .
 Energy
cannot be created or
destroyed. It is transformed or
transferred.
Energy can be changed (or transferred)
from one form into another.
 http://www.youtube.com/watch?v=k60jGJfV8oU&feature=plcp
Click on the words below to choose the type of energy found
in the picture.
Chemical
potential
Mechanical
potential
Gravitational
potential
Chemical
potential
Mechanical
potential
Gravitational
potential
Chemical
potential
Mechanical
potential
Gravitational
potential
Chemical
potential
Mechanical
potential
Gravitational
potential
Chemical
potential
Mechanical
potential
Gravitational
potential
Energy Transformations from
Potential to Kinetic
Click on the arrows to show the type energy transformation occurring in the
pictures.
Energy in
Energy out
Chemical
Motion
Energy in
Electrical
Energy out
Light
Energy in
Gravitational
potential
Energy out
Motion
Energy in
Energy out
Electrical
Thermal
Energy in
Light
Energy out
Electrical
Energy in
Mechanical potential
Energy out
Motion