1. Science 9: Unit D – Electrical Principles
Lesson 3-1: Forms of energy
We’re going to start off learning some of the principles of electricity, and then dive into hands on activities so you can experience it instead of Crossey talking about it!

2. Mechanical, Electromagnetic, Electrical,
TYPES OF ENERGY
Mechanical, Electromagnetic, Electrical,
Chemical and Thermal

3. What is Mechanical Energy?
Energy due to a object’s motion (kinetic) or position (potential).
The bowling ball has mechanical energy.
When the ball strikes the pins, mechanical energy is transferred to the pins!

4. Examples of Mechanical Energy

5. What is Electromagnetic Energy?
Light energy
Includes energy from gamma rays, xrays, ultraviolet rays, visible light, infrared rays, microwave and radio bands

6. What is Electrical Energy?
Energy caused by the movement of electrons
Easily transported through power lines and converted into other forms of energy

7. What is Chemical Energy?
Energy that is available for release from chemical reactions.
The chemical bonds in a matchstick store energy that is transformed into thermal energy when the match is struck.

8. Examples of Chemical Energy

9. What is Thermal Energy? Heat energy
The heat energy of an object determines how active its atoms are.
A hot object is one whose atoms and molecules are excited and show rapid movement.
A cooler object's molecules and atoms will show less movement.

10. ELECTROMAGNETIC ENERGY
QUIZ TIME!
What type of energy cooks food in a microwave oven?
ELECTROMAGNETIC ENERGY
What type of energy is the spinning plate inside of a microwave oven?
MECHANICAL ENERGY

11. QUIZ TIME!
Electrical energy is transported to your house through power lines.
When you plug an electric fan to a power outlet, electrical energy is transform into what type of energy?
MECHANICAL ENERGY

12. QUIZ TIME!
What energy transformation occurs when an electric lamp is turned on?
ELECTRICAL ENERGY 
ELECTROMAGNETIC ENERGY

13. What types of energy are shown below?
Mechanical and Thermal Energy
(Don’t forget friction)

14. What type of energy is shown below?
Chemical Energy

15. What types of energy are shown below?
Electrical, Mechanical and
Electromagnetic Energy

16. What type of energy is shown below?
Chemical Energy (yummy)

17. What type of energy is shown below?
Electric Thermal Energy

18. Assignment#1
Draw a flow map showing the flow of energy transformations in a car from starting vehicle to driving. You should have 5 different types of energy.

19. Energy Transfer Sound (mechanical) Electrical Thermal Mechanical
Chemical
Electrical
Light
(Electromagnetic)

20. Check your understanding Exit card #1
In travelling across the room, the car converted A) solar energy into mechanical energy into electrical energy B) Solar energy into potential energy into electrical energy C) Solar energy into electrical energy into mechanical energy D) Solar energy into thermal energy into chemical energy
A team of scientists constructed a solar powered car for their science fair project. The car was made by hooking up the car to a motor and a solar panel. During the initial test trial, the car travelled the length of a well lit room.

21. Check your understanding Exit card #2
The energy conversions that take place from the time the plunger is pushed down to the time the explosives detonate are from
Electrical to mechanical to chemical
Mechanical to electrical to chemical
Chemical to electrical to mechanical
Mechanical to chemical to electrical