Download Energy

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___________is the ability to do work or cause
change.
____________is done when a force moves an
object through a distance. Work is the transfer
of energy. (The object that work is being done
on gains energy)
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Both energy and work are measured in joules
(J).
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Example: The wind moving a leaf causes
change, therefore, the wind has Energy.
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___________ energy= the energy of motion
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___________ energy= stored energy
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The amount of kinetic energy an object has
depends on its mass and velocity.
Velocity=how fast an object moves
The more work you do to get an object
moving, the more energy you give that
object.
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A bowling ball would have more kinetic
energy than a golf ball when traveling at the
same velocity, because you would have to do
more work to get the ball moving.
Kinetic energy _____________ when velocity
increases.
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What is kinetic energy?
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This type of energy has the potential to do work.
There are many types:
________________________________________________
____________________________are the most
common.
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____________ potential
energy is associated
with objects that can
be stretched or
compressed.
An archer gives
potential energy to a
bow by pulling it back.
This stored energy can
send an arrow
whistling to its target.
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Gravitational potential energy depends on
height.
The greater the weight of the object or the
greater the height its lifted, the greater its
gravitational potential energy.
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How could this
man increase his
gravitational
potential energy?
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Energy stored in atoms that are about to go
through a chemical reaction
◦ Food before you eat it, chemicals before they are
mixed, etc.
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Chemical
Electrical
Thermal
Sound
Light
Mechanical
Nuclear
_____________ energy is energy that is stored in atoms and
the bonds between atoms and can be released by various
chemical reactions.
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When you receive a shock
from a metal doorknob you
experience electrical energy.
____________________________
produce electricity and they
carry electrical energy.
We rely on batteries and
power lines to run electrical
devices such as radios, lights
and computers.
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Is the measure of the ____________________
_______________in an object. (atoms and
molecules which make up all matter)
These particles have both kinetic and
potential energy due to their arrangement
and motion.
When thermal energy increases, its particles
move faster making it feel warm to the
touch. (Ice cream melts when thermal
energy increases.)
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Energy produced from the __________________
______________________.
Examples: plucked guitar string, a train horn,
someone speaking, etc.
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Radiant energy is the
____________________________________________
These waves have electrical properties and
magnetic properties.
Examples: light we see each day, ultraviolet
radiation, microwaves and infrared radiation.
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Energy associated with the _____________
________________ of an object.
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The ______________ of potential and kinetic energy
Examples: frog leaping through the air, swinging
a hammer, a spring, bow and arrow, etc.
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A type of ____________________ energy.
Stored in the nucleus of an atom and released during
nuclear reactions. Nuclear power plants use fission
reactions to produce electricity. (nucleus splits apart)
The sun and other stars create energy through nuclear
fusion. (nuclei join together)
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Are energy and work the same thing?
How are kinetic and potential energy
different?
List the forms of energy and give an example
of each.