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26 Cards in this Set

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  • Back
the ability to do work
energy
the energy of an object that is due to the object's motion
kinetic energy
the energy that an object has because of the position, shape, or condition of the object
potential energy
the amount of work an object can do because of the object's kinetic and potential energy
mechanical energy
dependent on mass and speed
kinetic energy
depends on an object's weight and its height
gravitational potential energy
all of the kinetic energy due to the motion of the particles thar make up an object
thermal energy
increases when temp. increases or when the number of particles increases
thermal energy
energy of a chemical compound that changes as its atoms are rearranged (potential energy) Ex. food
chemical energy
the energy of moving electrons
electrical energy
caused by an object's vibrations
sound energy
produced by the vibrations of electrically charged particles
light energy
energy that comes from changes in the nucleus of an atom
nuclear energy
a change from one form of energy to another
energy conversions
stored in a rubber band
elastic potenetial energy
force that opposes motion between two surfaces that are touching
friction
a group of objects that transfer energy only to each other
closed system
energy that cannot be created or destroyed
law of conservation of energy
results in less waste if less energy is wasted less energy is needed to operate a machine
greater effieciency of machines
cannot be replaced or are replaced much more slowly than than they are used
nonrenewable resources
naturally replaced more quickly than they are used
renewable resources
organic matter that can be burned to release energy
biomass
give 5 examples of renewable resources
solar energy, energy from water, wind energy, geothermal energy, biomass
measure of the force of gravity pulling on something
weight
measure of how much matter is in your body
mass
unit of measure for weight
newton