SOL 6.2 a & e
Dec 21, 2015
SOL 6.2 a & e
ENERGY is…the ability to do WORK or cause change
WORK is…when a FORCE moves an object
a FORCE
is…a push or a pull
STATES OF ENERGY
POTENTIAL ENERGY
STORED energy that is NOT being used…
YET
KINETIC ENERGYEnergy in MOTION--Energy that IS being
usedRoller
coaster (potentia
l)
Roller coaster (kinetic)
Spring pressed
down
Spring released
Water behind
dam
Water release
d & falling
Rocket on
launch pad
Rocket blasting
off
An object will haveMORE POTENTIAL ENERGY IF….
~ It is HIGHER UP off of the ground
~ It has MORE MASS (heavier)
At which point on this track would a roller
coaster have the MOST POTENTIAL
ENERGY? __
Which ball has the MOST POTENTIAL
ENERGY?A)The less heavy ballB)The very heavy ball
An object will haveMORE KINETIC ENERGY IF….
~ It is MOVING AT A FASTER SPEED.
~ It has MORE MASS (heavier)
Which vehicle below has
MORE KINETIC ENERGY?
(A) 75 mph (B) 50 mph
Which vehicle below has
MOREKINETIC ENERGY?
(B) 75 mph(A) 75 mph
DIFFERENT FORMS OF ENERGY
Both potential & kinetic energy come in many forms.
Use each of the next six slides to complete your notes.
Write the COMPLETE DEFINITION & DRAW EACH OF THE ILLUSTRATIONS for
each form of energy.
CHEMICAL ENERGYEnergy in chemical bonds of food, fuel,
coal, batteries, etc.
battery
gasoline/oil
food
1.
wood
coal
ELECTRICAL ENERGYMoving electrical charges
(electrons)
Power lines
Power outlet Lightning
2.
Wires and plugs
ELECTROMAGNETIC ENERGY(also called radiant energy)
Light energy that travels in WAVES
sunlight
Light from a flame
3.
lightbulb light
MECHANICAL ENERGYEnergy of moving parts
Pencil sharpen
er
Mouse trap
Bicycle
4.
NUCLEAR ENERGYStored in the nucleus of an atom &
released when atoms are split or joined together
Nuclear power plant
Energy inside atoms
5.
THERMAL (HEAT) ENERGYEnergy of the moving particles (atoms/molecules) IN an object
battery
Cold stuff too!
Warm stuff
6.
ENERGY TRANSFORMATIONS **Also called Energy Conversions
Definition: When energy CHANGES from one form to another
DRAW & LABEL the ENERGY TRANSFORMATIONS
on the next 4 slides
DRAW & LABEL the ENERGY CONVERSIONS taking place with a FLASHLIGHT.
BatteriesLight & Heat
Wires
CHEMICAL ENERGY
ELECTROMAGNETIC & THERMAL
ENERGY
ELECTRICAL ENERGY
Switch (button)
MECHANICAL ENERGY
Heat &
Light
CHEMICAL ENERGY
MECHANICAL ENERGY
Outlet, plug, & cord
DRAW & LABEL the ENERGY CONVERSIONS taking place with a TOASTER.
Button/Lever
ELECTRICAL ENERGY
THERMAL & ELECTORMAGNETI
C ENERGY
Toasted Bread
DRAW & LABEL the ENERGY CONVERSIONS taking place in PHOTOSYNTHESIS
Plant changes sunlight & waterinto sugar (food) for plant!
CHEMICAL ENERGYLIGHT WAVES
ELECTROMAGNETIC ENERGY
DRAW & LABEL the ENERGY CONVERSIONS taking place in A CAR
MECHANICAL ENERGY
GASOLINECHEMICAL ENERGY
CAR MOVES!