Energy Transformations

1
Energy Transformations

• Or How do we change one type of energy to
  another type?

2
What is Energy?

• Energy is the ability to do work.
• It is what makes things happen from the
  smallest electron circling the nucleus of an atom
  to the light pouring from the surface of the sun.

3
Two Forms of Energy

• Energy can be described as in one of two forms
• Kinetic energy something is moving.
• Potential energy something has energy stored
  and is ready to begin moving.

4
Types of Energy
5
Both forms of energy can occur in many types

• Thermal (or heat) energy
• Light energy
• Chemical energy
• Mechanical energy
• Electrical energy

6
The Law of Conservation of Energy

• One of the fundamental scientific laws is that
  Energy cannot be created nor destroyed.
• The amount of energy in the universe is constant.
  
• When energy changes from one form or one type to
  another--- thats when things happen!

7
Different devices can transform one type of
energy to another.
Batteries (Chemical energy)
Light Energy
8
Steam Turbine Generator (Mechanical Energy)
Coal-fired boiler (Thermal energy)
Air Conditioner (Thermal Energy)
Switchyard (Electrical Energy)
9
Sunshine (Light Energy)
Solar Panels
Hot water heater (Thermal Energy)
10
Car engine converts it to heat (thermal energy),
and then, to
Gasoline (chemical energy)
SPEED! (mechanical energy)
11
Now, its your turn!

• Work within your group to come up with several
  ways you can use materials to convert one form of
  energy to another.
• Explain how you will know an energy conversion
  has occurred.