1. Forms of Energy
Today’s Topic:
What are the different forms of energy?

2. We will look at: The relationship between energy and work
Types of energy
How energy can change forms

3. Intro Activity: ABC Word Splash
You will be given 2 minutes to write down as many words (beginning with the letters of the alphabet) that come to mind when you think of ENERGY.
Go!
Now, you will be given 2 minutes to compare your list with the list of your lab members. Add any new words discussed.

4. Things to know before we start:
The world is full of energy
Every thing that you do or see requires or is a product of energy
Without energy, living things could not survive.

5. How does this picture relate to energy?

6. How does this picture relate to energy?

7. How does this picture relate to energy?

8. How does these pictures relate to energy?

9. Energy and Work Remember, work requires a force and a distance
Energy is the ability to do work or the ability to cause a change
Whenever work is done, energy is transformed or transferred
Ex. Whenever you stretch a slingshot back, you do work and you transfer energy from your body to the elastic band.

10. Energy and Work Energy is measured in joules.
Because energy is a measure of the ability to do work, energy and work are expressed in the same unit.
Work requires an object to change its motion; however, energy can be present in an object when nothing is happening at all.

11. Types of Energy Mechanical Energy (kinetic & potential) Heat Energy
Chemical Energy
Electromagnetic Energy
Nuclear Energy
Light Energy
Sound Energy
Electrical Energy
Magnetism

12. Mechanical Energy
Mechanical energy is the sum of kinetic and potential energy in an object that is used to do work.
In other words, it is energy in an object due to its motion or position, or both.
Clipart credits:

13. Kinetic and Potential Energy
Kinetic energy is the energy that a moving object possesses.
Ex. A hammer pushing in a nail
Potential energy is stored energy due to position.
Ex. Dynamite before it explodes

14. Clipart credits: http://www. physicsclassroom

15. Potential Energy Gravitational potential energy:
Energy that is stored by objects that are above Earth’s surface
Elastic potential energy:
Energy stored by an object that can stretch or shrink

16. Heat Energy Results from the motion of molecules
Anything that produces heat is said to have heat energy.
Ex. Heat due to friction- rubbing your hands together
Ex. A heater

17. Chemical Energy The energy required to bond atoms together.
When you break these bonds, the energy is released.
Ex. Digestion
Ex. When a car burns gasoline
Clipart credits:

18. Electromagnetic Energy
Energy that comes from space (waves)
Ex. The sun’s rays producing light, X-rays, and UV rays.
Ex. Asphalt on a hot summer day is hotter where the light shines.
Clipart credits:

19. Nuclear Energy
This energy is derived from the forces that holds atoms together (fusion).
Fusion (nuclear energy) is what gives the sun its energy.
When nuclear bonds break (fission) and atoms decay, nuclear energy is released and converted to heat, which helps to warm the earth.
Ex. Atomic bomb

20. Electrical Energy Moving electrons
Ex. Outlets, tv’s, lights, lightning
Clipart credits:

21. Sound Energy
Sound waves
Ex. Music, noise

22. Light Energy
Anything that produces light
Ex. Lightning, sparklers

23. Magnetism
The attraction or repulsion of an object due to its magnetic field.
Ex. Electromagnet, bar magnet

24. Credits