energy
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ENERGY
What is ENERGY?
Energy is the ability
to do _______Work
Work occurs when a _____ causes an object to _____ in
the same direction as the force.
move
force
All forms of energy can be classified as
Kinetic or potential. The two
basic states of energy. So, what’s
the difference?
1) Potential energy is stored energy
due to and object’s _____________Position
POTENTIAL ENERGY
2) An object that is lifted from its position on Earth has __________ potential
Energy which depends on ______ and mass
gravitational
POTENTIAL ENERGY
height
3) Massive objects have _____
potential energy than less massive
objects
more
POTENTIAL ENERGY
4) An object at a higher elevation will have _____ potential
energy than an object at a lower elevation
more
POTENTIAL ENERGY
1) Kinetic is energy of
___________Motion
KINETIC ENERGY
2) Kinetic depends on the _____ and the _______ of an
object.
MASS
KINETIC ENERGY
SPEED
3) Faster objects have ____ kinetic energy than
slower objects.
More
KINETIC ENERGY
FORMS OF ENERGYBoth basic states of energy,
Kinetic and potential, can exist in many forms!
The total ________ energy of the particles in
matter. (molecular
motion)
KineticTHERMAL (HEAT)
Heat energy STORED within the _____. Ex:
Volcanic eruptions, geysers
Earth
GEOTHERMAL (HEAT)
Energy STORED in chemical ____ that can be released. Ex: food, fossil fuels, battery acid
bonds
CHEMICAL
Energy STORED in the ________ (center) of an atom.
Ex: nuclear bombs
nucleus
NUCLEAR
Energy with which ______ objects perform work.
Ex: Wind, flowing water, using a hammer
moving
MECHANICAL
A type of mechanical energy. It is the energy produced
when objects ________. Ex: tuning
fork, bell
vibrate
SOUND
A form of _______ energy that moves in a ______.
Ex: lamp, stars
radiantLIGHT
wave
A form of energy produced by the ________
of ________movement
ELECTRICITY
electrons
All forms of energy that come from the ______.SUN
SOLAR ENERGY
Stored energy due to a change in the shape
of an object. Ex: _______________A stretched rubber
band
STORED MECHANICAL ENERGY:
STORED MECHANICAL ENERGY:
Do you remember the LAW OF
CONSERVATION OF MASS AND ENERGY?
ENERGY TRANSFORMATIONS
Law of Conservation of ENERGY: (same for
mass)Mass/ NRG ____________
Mass/ NRG ______________
Mass/ Energy can only __________
Can’t be madeCan’t be destroyed
Change form!!!
Please read the paragraph…
Energy is constantly changing
form…
ENERGY TRANSFORMATIONS
ENERGY TRANSFORMATIONS
Very often during the energy transformation process,
some ____ energy is produced due to friction.
This is wasted energy and is lost to the
environment.
heat
UNUSABLE ENERGY:
An energy resource that is
_______________________________________.
Being used faster than Earth Produces it
What is a NON-RENEWABLE RESOURCE?
Examples:__________________Fossil Fuels,
minerals
What is a NON-RENEWABLE RESOURCE?
To make our non-renewable
resources last longer we can
________________________________________
_____.
ReduceReuse
Recycle
What is a NON-RENEWABLE RESOURCE?
An energy resource that is
_______________________________________.
Earth supplies faster than we use
it “unlimited”
What is a RENEWABLE RESOURCE?
Examples: _______________________________
Solar, wind, biomass (trees
etc..)
What is a RENEWABLE RESOURCE?
A renewable resource produces less
_________ (substance that can harm living
things and/or the environment
pollution
What is a RENEWABLE RESOURCE?
EARTH DAY GALLERY TOUR!
Example: