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You Need: Scientist’s Notebook Pen  Pencils Art Supplies
Make a list of everything you did this morning from the time you got up until the time you walked into the school.
Did you use any of these things?
What is one thing that they all have in common? They all involve energy
Energy ,[object Object],But…. What is work?
Work Using force (a push or pull) to make something move through a distance
So energy is… The ability to make something move or make something happen or the ability to do work
What are the different types of energy? List as many as you can think of in your Scientist’s Notebook.
There are only 2 types of energy: Potential Kinetic
Potential Kinetic
Potential Energy Energy that is stored.   Hasn’t been used yet. 2 Causes of Potential Energy: 1. An object’s position
[object Object],(2 Ways) Because of vertical position or height More height = more energy Caused by gravity
Potential Energy based on Position ,[object Object]
Because of vertical position or height.
More height = More energy,[object Object]
What about this?  When they both finish moving their objects to the top, which object will have more potential energy?
[object Object],(2 Ways) (Being stretched beyond its normal position) Because of vertical position or height Position can be like spring or bow and arrow More height = more energy Because of Elasticity - elastic Caused by gravity
PE because of Position Because of Elasticity - elastic
PE because of position…
PE because of position…gravity or elasticity?
[object Object],Like a battery, Gasoline or the bonds between something’s atoms Because of its atoms
Potential energy can also be because of an object’s condition.
Potential Kinetic ,[object Object]
Hasn’t been used yet.
Comes from:
An object’s position
An object’s conditionCaused by gravity Position can be like spring or bow and arrow More height = more energy Because of vertical position or height Like a battery, Gasoline or the bonds between something’s atoms Because of its atoms
Once the energy is put to use it becomes….Kinetic Energy Energy in motion Energy that’s being used
Potential energy (stored energy) gets converted to kinetic energy, (or energy of motion).
More examples….
What are some examples of potential and kinetic energy?
More about Potential and Kinetic Energy Brainpop on Potential and Kinetic Energy
Now it’s your turn: ,[object Object]
You will be making a flip book to illustrate your example.
Let’s make our book first.,[object Object]
[object Object]
Unfold the last fold you made.
Take your scissors and cut along the fold line on the top flap only.,[object Object]
[object Object]
Give me the signal to approve it.
Start your real drawing in your flip book.
It must be colored, and your words must be in ink.
Do the whole thing in pencil first, then go over it with markers, colored pencils, etc.  (In case you mess up!),[object Object]
There are 2 types of energy: Potential Kinetic Energy can exist in many forms: (Video Clip)
Forms of energy: http://www.brainpop.com/science/energy/formsofenergy/
Forms of energy Mechanical  Heat  Chemical Electrical Radiant Nuclear Sound
Make your notes  look like this: Fit 2 energy forms per page! Draw a quick picture of one example of each energy form
Mechanical Energy Energy of moving objects
Heat (or thermal) Energy ,[object Object],[object Object]
Ex: natural gas, propane, coal, biomass,[object Object]
Radiant Electromagnetic energy that travels in waves through empty space Ex: light, x-rays, radio waves, solar energy
Nuclear Energy stored in the nucleus of an atom The force that holds the neutrons and protons together is very strong.  If you break that bond, it releases LOTS of energy!!
[object Object]
Nuclear Medicine
The Bomb,[object Object]
Sound energy travels in waves.
Let’s talk more about Heat Energy or Thermal Energy Remember that it’s the energy caused by the movement of particles in an object. Turn to the next available page in your Scientist’s Notebook. At the top write HEAT Make a T-Chart
I didn’t know that… I knew that!
Let’s compare lists.
What is heat? Energy from an object’s moving particles. The faster the particles are moving, the more heat energy the matter has. Thermal Energy
Temperature is… A measure of how fast an object’s particles are moving. Measured with a thermometer So…thermometers don’t measure Heat. They measure temperature!
Heat… Always moves from warmer matter to cooler matter!   Memorize this!!!! When heat moves, It’s called…
Heat Transfer (or How Heat Travels) ,[object Object]
Convection
Radiationhttp://www.wisc-online.com/objects/index_tj.asp?objID=SCE304
Conduction ,[object Object]
Happens mostly in solids

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You Need: The Science of Energy

Notas do Editor

  1. Use laser disc after this slide. Vol. 3 Work, Energy and Machines pp. 14-17
  2. We can calculate work with a math formula. LD 18-21
  3. Laser Disc 24-25
  4. Video on picture