1. Thursday- Science Question of the Day
An automobile engine converts the chemical energy in gasoline mostly into heat and -
A. nuclear energy.
B. light energy.
C. electromagnetic energy.
D. mechanical energy.  
Recognize that energy can be transformed from one type to another.

2. Going Over the Question of the Day
Testing Tips:
An automobile engine converts the chemical energy in gasoline mostly into heat and –
A. nuclear energy
B. light energy
C. electromagnetic energy
D. mechanical energy.
When thinking about energy transformations from our second unit, it is important to visualize the object and ask some important questions about it:
What is the source of energy of this object? The source of energy of an automobile is gasoline – which has chemical energy
What is the purpose of the object? The purpose of an automobile is to move!
Does any other form of energy get produced also? Remember, the most common form of energy that is produced is heat (thermal energy)!
Because the purpose of an automobile is to move, the following energy transformation takes place:
Chemical energy  thermal energy
(heat) & mechanical energy

3. 6th Grade Science TCAP: Reviewing Energy Transformations
6th Grade Science TCAP: Reviewing Energy Transformations! (from Unit 2: Energy)
Today’s Agenda:
Going over the Question of the Day (5 minutes)
Correct answer
Testing Tips
Reviewing Energy Transformations (20 minutes)
Part I: Reviewing Forms of Energy
Part II: Reviewing Energy Transformations
Energy Transformations Practice Quiz (15 minutes)

4. Key Concepts to remember about Energy Transformations
We learned about several forms of energy:
Potential Energy Light Energy
Kinetic Energy Sound Energy
Mechanical Energy Electrical Energy
Thermal Energy Nuclear Energy
There are three forms of potential energy:
Gravitational Potential Energy
Elastic Potential Energy
Chemical Potential Energy
The Law of Conservation of Energy states that energy cannot be destroyed or created.
Remember: Energy just changes from one form to another!

5. Part I: Reviewing Forms of Energy

6. Make sure you have at least 3 lines for each row in your table!
Taking Notes for Part I: Set up a table like the one below in your notebook and fill it in as we go along!
Form of Energy
Definition
Example
(1) Kinetic Energy
(2) Gravitational Potential Energy
(3) Chemical Potential Energy
(4) Elastic Potential Energy
(5) Mechanical Energy
(6) Thermal Energy
(7) Electrical Energy
(8) Sound Energy
(9) Light Energy
(10) Nuclear Energy
Make sure you have at least 3 lines for each row in your table!

7. Kinetic Energy Is the energy of motion.
Kinetic energy depends on mass and speed.
The faster something is moving, the more kinetic energy it has.
Also, the more mass a moving object has, the greater its kinetic energy.
If a motorcycle and a Hummer are both driving down Winchester going 40 mph, which has the greater kinetic energy?
The Hummer has a greater kinetic energy because it has a greater mass!

8. Gravitational Potential Energy
When you lift an object, you do work on it.
You use a force that is against the force of gravity.
Books on a shelf have gravitational potential energy.
Which has the greater gravitational potential energy: the black vase on the 6th shelf or the vase on the 3rd shelf?
The black vase has the greater gravitational potential energy  remember G.P.E. depends on height and weight!

9. Chemical Potential Energy
Before you eat that sugary drink or food, it has the potential to give you energy.
Food and drinks have chemical potential energy due to their chemical composition.
Also, batteries and gasoline have chemical potential energy.

10. Elastic Potential Energy
Energy can be stored in bowstrings, springs, and rubber bands.
You change the shape of these objects by stretching them.

11. Mechanical Energy The total energy of motion and position of an object
Example of Mechanical Energy
A spinning wheel.

12. Thermal Energy Water has thermal energy.
All of the kinetic energy due to random motion of the particles that make up an object.
The hotter something is, the more kinetic energy its particles have.
If something is cold, like ice, its particles are moving very slow, or have little kinetic energy.
Example of Thermal Energy
Water has thermal energy.

13. Electrical Energy The energy of moving electrons. A.k.a. electricity!
Example of Electrical Energy
The energy of moving electrons.
A.k.a. electricity!
Anything that is powered by electricity requires electrical energy!

14. Sound Energy
An object’s vibrations transmit sound energy through the air.
Example of Sound Energy
Anything that produces sound is giving off sound energy!

15. Light Energy Produced by vibrations of electrically charged particles.
Example of Light Energy
Anything that produces a form of light!

16. Nuclear Energy
Energy that comes from changes in the nucleus of an atom.
The sun is a natural example of nuclear energy.
Humans have also figured out a way to produce electricity using nuclear energy.

17. Part II: Energy Transformations

18. Energy just CHANGES!
 Write this down
The Law of Conservation of Energy states that energy cannot be destroyed or created.
When thinking about energy transformations from our second unit, it is important to visualize the object and ask some important questions about it:
(1) What is the source of energy of this object?
(2) What is the purpose of the object?
(3) Does any other form of energy get produced also?
 Write this down

19. Looking at Real Examples of Energy Conversions: BLOW DRYER
What is the source of energy of this object?
A blow dryer is powered by electrical energy.
What is the purpose of the object?
To dry your hair! * this is done through thermal energy (heat)
Does any other form of energy get produced also?
A blow dryer also produces sound energy and mechanical energy (the motor spins to blow air out of the blow dryer)
What energy conversions are taking place here?
_________ energy  _________ energy
_________ energy _________ energy
_________ energy  _________ energy
Electrical
Thermal
Electrical
Sound
Electrical
Mechanical

20. Looking at Real Examples of Energy Conversions: MATCH BEING LIT
What is the source of energy of this object?
Your mechanical energy (moving arm) strikes the match against the box.
Also, the chemical energy in the red tip of a match is what sparks the flame.
What is the purpose of the object?
To create fire, which gives off heat (thermal energy) and light!
Does any other form of energy get produced also?
When a match is struck, you can hear it (sound energy)
What energy conversions are taking place here?
_________ energy  _________ energy
_________ energy  _________ energy
Mechanical
Thermal
Chemical
Light
Mechanical
Sound

21. Looking at Real Examples of Energy Conversions: FAN
What is the source of energy of this object?
The source of energy for a fan is electrical energy
What is the purpose of the object?
The purpose is to cool you off – the moving blades do this!
Does any other form of energy get produced also?
A fan produces sound energy (the “bzz” of the moving blades) and thermal energy (from the motor)
What energy conversions are taking place here?
_________ energy  _________ energy
Electrical
Mechanical
Electrical
Sound
Electrical
Thermal

22. Looking at Real Examples of Energy Conversions: Create Your Own!
At the bottom of your notes today underneath your steps for identifying Energy Transformations, describe your own example of an energy conversion that we have not yet discussed.
Then, take a few minutes to share your energy conversion.
Fellow scholars: if you think that a scholar has missed or incorrectly identified an energy conversion, raise your hand to respectfully correct them and make you sure you explain!

23. Energy Transformations Practice Quiz (15 minutes)
On my Quia profile, open the “March Madness” Folder and click on “Week 1 Practice Quiz”
You will have the last portion of class to answer 10 practice questions on this topic.
The secret word for today’s practice quiz is: “change”
Once you submit your answers, make sure you review the questions you got wrong!
If you finish early with the quiz, you can view the link on my Quia for “March Madness: Week 1”