Transcript Energy and Energy Transfer PowerPoint

Energy and Energy
Transfer
ENERGY?
Energy is what gives us the ability to do stuff, to
make things move, to make things happen!
ENERGY?
Energy is what gives us the ability to do stuff, to
make things move, to make things happen!
ENERGY?
Energy is what gives us the ability to do stuff, to
make things move, to make things happen!
Is energy being used when you are
laying around on the couch with
Cheetoh fingers, while watching
Adventure Time?
A. Yes
B. No
ENERGY FORMS
ENERGY COMES IN SEVERAL DIFFERENT
TYPES. THERE’S TWO BASIC WAYS THAT
YOU CAN CLASSIFY THEM.
POTENTIAL ENERGY
ENERGY IS STORED
FOR LATER USE
KINETIC ENERGY
ENERGY IS MOVING
THE KINETIC ENERGY OF MOLECULES
THERMAL ENERGY MOVES IN 3 WAYS
1. CONDUCTION
2. CONVECTION
3. RADIATION
THERMAL ENERGY MOVES FROM HOTTER AREAS TO COOLER AREAS.
MAGIC TRICK
KINETIC ENERGY THAT MOVES THROUGH AN OBJECT AS A VIBRATION.
SOUNDS MADE IN OUR THROATS OR IN SPEAKERS CAUSE AIR IN THE
ROOM TO VIBRATE, WHICH VIBRATES OUR EARS.
SOUND ENERGY HAS TO MOVE THROUGH A MEDIUM!
http://www.youtube.com/watch?v=9KHvD6MOCRo&safe=active
http://www.youtube.com/watch?v=NutjtUkHo5o&safe=active
ENERGY CAUSED BY THE MOVEMENT OF ELECTRONS FROM ONE AREA
TO ANOTHER.
MOST COMMONLY USED TO POWER APPLIANCES AND ELECTRONICS;
ALSO INCLUDES LIGHTNING AND STATIC DISCHARGES.
LIGHT ENERGY IS THE MOVEMENT OF
PHOTONS, or PARTICLES OF LIGHT.
LIGHT ENERGY MOVES IN A WAVE-LIKE
MOTION AS IN TRAVELS. CHANGING THE
WAVE’S LENGTH CHANGES THE TYPE OF
LIGHT.
The Science of Rainbows
TRANSMITTED THROUGH SPACE IN THE
FORM OF WAVES
DOES NOT NEED A MEDIUM TO TRAVEL
THROUGH
LIGHT ENERGY IS A FORM OF
ELECTROMAGNETIC ENERGY
POTENTIAL
ENERGY
THE POTENTIAL ENERGY STORED IN CHEMICAL BONDS.
THINK OF IT AS A FUEL SOURCE, LIKE GASOLINE, FOOD, OR
BATTERIES.
What type of energy is stored in your
cell phone batteries?
A.
B.
C.
D.
Thermal Energy
Chemical Energy
Electrical Energy
Kinetic Energy
ENERGY CHANGES!
ENERGY CHANGES!
ENERGY CHANGES FROM ONE TYPE OF ENERGY TO ANOTHER.
*NOTE* SOMETIMES THIS IS CALLED A CONVERSION
IN EVERY ENERGY TRANSFER, HEAT ENERGY IS A PRODUCT TAKING
ENERGY FROM THE SYSTEM.
What is the primary energy conversion
happening in this bullet below?
A.
B.
C.
D.
Chemical Energy to Kinetic Energy
Chemical Energy to Potential Energy
Heat Energy to Kinetic Energy
Heat Energy to Potential Energy
YOU CANNOT CREATE NEW ENERGY FROM NOTHING.
YOU CANNOT DESTROY EXISTING ENERGY AND TURN IT INTO
NOTHING.
ENERGY CAN ONLY TRANSFORM FROM ONE TYPE TO ANOTHER!