Final Jeopardy

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Energy Basics Forms of Energy Energy Conversions Conservation of Energy Energy Resources
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200 200 200 200 200
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500 500 500 500 500
Final Jeopardy
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This is done when a force causes an object to
move in the direction of the force.
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work
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The energy of an object based on its motion is
referred to as this
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kinetic energy
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What is the formula for finding kinetic energy?
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Kinetic energy mv² 2
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What would the gravitational potential energy be
for a diver who weighs 600N is standing on a
platform that is 20m off the ground?
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GPE W x H GPE 600N x 20m GPE 12,000Nm GPE
12,000 J
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What is the mechanical energy of a juggler with
45 J of potential energy 20 J of kinetic energy
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Mechanical energy PE KE Mechanical energy
45 J 20 J Mechanical energy 65 J
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Heat is often referred to as this type of energy.
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thermal energy
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The movement of electrons is found in this type
of energy.
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electrical energy
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This is a form of potential energy because it
depends on the position arrangement of the
atoms.
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chemical energy
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This form of energy is produced by the vibrations
of electrically charged particles.
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light (radiant) energy
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Energy from the Sun is created through nuclear
fusion or the joining of atoms. What elements are
used created when this process occurs every
second?
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Hydrogen Helium
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This is the change of one form of energy to
another.
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energy conversion
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When a skateboarder is flying through the air at
the top of a half-pipe, what type of energy does
he/she possess?
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potential energy
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A light bulb converts electrical energy into
which two types of energy?
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light (radiant) energy thermal energy
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Because energy is conserved in all cases, we call
it this rule
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law of conservation of energy
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Perpetual motion machines are impossible because
this type of energy is always given off
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thermal energy
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This law states that matter/energy cannot be
created nor destroyed, but can be changed from
one form to another.
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Law of Conservation of Energy
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This is a force that opposes motion between two
surfaces that are in contact.
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friction
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This is a comparison of the amount of energy
before a conversion with the amount of useful
energy after a conversion.
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energy efficiency
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True or False The drinking bird is a good
example of a perpetual motion machine.
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False!
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A bike is pedaled with 80 J of energy then
coasts. It does 60 J of work in moving forward
until it stops. How much of the energy that was
put into the bike became thermal energy?
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80 J 60 J 20 J
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These resources can be replenished at the same
rate at which they are being consumed.
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renewable resources
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Fossil fuels need these two processes (like
metamorphic rocks) to become created over
millions of years.
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heat pressure
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What are three examples of fossil fuels?
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coal, petroleum, natural gas,
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Name one energy resource that does not depend on
the Sun.
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geothermal nuclear
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Which chemical compound is released when fossil
fuels are burned?
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CO² (carbon dioxide)
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What major food creation process in plants will
cease to exist if the Sun burns out?
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photosynthesis
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