1. We NEED Energy! DaNel Hogan Mike Wiedenfeld Denise Humphreys

2. Science of Energy

3. What is energy? Ability to do work or cause change Produces Warmth
Produces Light
Produces Sound
Produces Movement
Produces Growth
Powers Technology

4. POTENTIAL KINETIC Classes of Energy
Energy of motion
Stored energy or energy of position
Kinetic, Electrical, Sound, Radiant, Thermal
Gravitational, Elastic, Nuclear, Chemical

5. Potential Energy
Gravitational Potential Energy – energy an object or substance has because of its position
Anything elevated

6. Elastic Energy – stored in an object by the application of force
Potential Energy
Elastic Energy – stored in an object by the application of force
Stretching, compressing or deforming something that wants to go back to its original shape

7. Nuclear Energy – energy stored in the nucleus of an atom
Potential Energy
Nuclear Energy – energy stored in the nucleus of an atom
Bonds that hold the nucleus together

8. Chemical Energy – energy stored in the bonds between atoms
Potential Energy
Chemical Energy – energy stored in the bonds between atoms
Holds molecules together

9. Kinetic Energy
Mechanical Kinetic Energy – movement of objects or substances from one place to another .

10. Electrical Energy – movement of electrons or other charged particles
Kinetic Energy
Electrical Energy – movement of electrons or other charged particles
NOT AN ELECTRON PARADE!

11. Kinetic Energy
Sound Energy – movement of energy through substances in the form of longitudinal (compression and rarefaction) waves

12. Kinetic Energy
Radiant Energy – electromagnetic energy that travels in transverse waves

13. Kinetic Energy
Thermal Energy – internal energy of a substance due to the vibration of atoms and molecules making up the substance

14. Transition: Forms to Sources
Forms - How Scientists Classify Energy
Sources - Where We Get the Energy To Make Our Lives More Comfortable, Convenient, & Enjoyable
Transition: Forms to Sources
Chemical
Chemical
Chemical
Motion
Chemical
Motion
Nuclear
Thermal
Chemical
Radiant
86.62%
8.50%
4.46%
0.23%
This worksheet which is included in both Science of Energy Guides helps students learn the difference between forms of energy and energy sources and explains how they are related.
Again explain that torms of energy are how scientists classify the different kinds of energy. Energy sources are where we get the energy we use everyday to make our lives more comfortable and convenient. An example of this is the energy we receive from the sun comes in the form of radiant energy. We call this resource (source) solar energy.
Quickly explain how this sheet is used by students. Don’t spend too much time on it.
0.16%
9.39%
90.6%
The NEED Project

15. Most of the energy consumed in the U.S. is stored in the form of
Take note…
Most of the energy consumed in the U.S. is stored in the form of !
chemical energy

16. Take note…
Biomass
provides us with the greatest amount of energy when considering renewable energy sources.

17. Take note…
Petroleum
provides us with the greatest amount of energy when considering nonrenewable energy sources.

18. provides the largest portion of imported oil to the United States.
Take note…
Canada
provides the largest portion of imported oil to the United States.

19. The top five sources of energy used in the U.S. are
Take note…
The top five sources of energy used in the U.S. are
petroleum, natural gas,
coal, uranium, and
biomass.

20. Take note…
Nonrenewable sources of energy make up over % of U.S. energy consumption. 90

21. U.S. Primary Energy Flow by Source and Sector, 2012
(Quadrillion Btu)

22. Take note…
are the two fossil fuel energy sources used to generate approximately 65% of electricity in the United States.
Coal and natural gas

23. is the state that mines the most coal. Wyoming
Take note…
is the state that mines the most coal.
(HINT: Powder River Basin)
Wyoming

24. Take note…
Hydropower
is the renewable source of energy used to generate more electricity than any other renewable source in the United States.

25. Take note…
The national average cost of a residential kWh of electricity is cents. 12

26. Energy Transfers
1 – Energy cannot be created or destroyed, only changed or transformed.
Law of Conservation of Energy
First Law of Thermodynamics
2 – Energy will always transfer from high to low.
3 – No energy transfer is 100% efficient.

27. Take note…
Electricity was not listed as a primary source of energy. It is a source – some other source of energy must be converted into electricity.
secondary

28. Just like the shake light!
Take note…
A majority of electricity is generated by
Just like the shake light!
moving coils of wire through magnetic fields.

29. Chemical
Kinetic
Name the Transfer

30. Radiant
Chemical
Name the Transfer

31. Electrical
Thermal
Name the Transfer

32. Chemical
Kinetic
Name the Transfer

33. All energy flows begin with energy if you trace them back far enough!
Take note…
All energy flows begin with energy if you trace them back far enough!
nuclear

34. Energy does work or causes Two main classes of energy: change.
In Review
Energy does work or causes
Two main classes of energy:
change.
potential and kinetic.

35. In Review Gravitational, Elastic, Nuclear, Chemical
Potential Energy – stored energy or energy of position
Kinetic Energy – energy of motion
Gravitational, Elastic, Nuclear, Chemical
Mechanical Kinetic, Electrical, Sound, Radiant, Thermal

36. In Review Energy cannot be created or destroyed, only
Energy always transfers from
Energy transfers are % efficient.
changed or transformed.
low to high.
high to low.
high to low.
never

37. Station Rules and Hints
READ the directions.
FOLLOW the directions.
READ the “What the heck?”
CLEAN up and reset before moving on.
BE CAREFUL!
Hot lights.
Fire!
Hot water
Projectiles