Kinetic Jeopardy !
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Transcript of Kinetic Jeopardy !
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Kinetic Jeopardy!
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Kinetic Jeopardy!Energy
Convert & Conserve
Watch the Power!
Ancient Energy
Types of Energy
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Define Energy and what is its unit?
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Energy is the ability to do Work, measured in Joules.
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What are the 2 kinds of energy? Define them.
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Kinetic energy (the energy of motion) and Potential energy (stored energy).
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What are 2 ways that you can increase an object’s
Potential Energy?
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By increasing the height of the object or by stretching it.
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Kinetic Energy = ½ x Mass x Velocity2
Which one has the greatest KE?a) 2,000kg car going 2m/sb) 100kg person running 10m/sc) 40kg cheetah running 30m/s
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Kinetic Energy = ½ x Mass x Velocity2
Which one has the greatest KE?a) 2,000kg car going 2m/s = 4,000Jb) 100kg person running 10m/s = 5,000Jc) 40kg cheetah running 30m/s = 18,000J
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Final Jeopardy
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What is Energy Conversion?
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Changing the form of energy (Potential energy
can be converted into Kinetic energy).
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What does the Law of Conservation state?
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The Law of Conservation states that
energy can not be created or destroyed.
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Explain where the Kinetic energy and potential energy are both at their
highest and lowest in the diagram.
DAILY DOUBLE!
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Kinetic energy is highest at point 3 and lowest at 1 and 5. Potential energy is highest at points 1 and 5 and lowest .
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Albert Einstein’s theory of relativity states that energy
and matter are related. What is the formula he used to
express this idea?
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Final Jeopardy
E = m x c2
Einstein’s theory states that the Energy (E) of an object equals its Mass (m) times the speed of
light (c) squared.
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What is the definition of Power? (Not the equation)
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Power is the rate at which energy is transferred or converted.
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What is the ‘advanced’ formula for Power and its unit?
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Power = Force x Distance Time
Power is measured in Watts.
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A tow truck uses 5,436 Joules to lift a car over 18 seconds. What is the Power of the tow truck?
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Power = Work Time
Power = 5,436J18s
Power = 302W
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Which has more Power?
A drill that can put a 10N nail 0.2m into a block of
wood in 2 seconds.
A hammer that can put a 20N nail 0.5m into wood
in 5 seconds.
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Final Jeopardy
Which has more Power?
Power = 10N x 0.2m 2s
Power = 1W
Power = 20N x 0.5m 5s
Power = 2W
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What 3 fuels are known as Fossil Fuels?
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The 3 Fossil Fuels are Coal, Petroleum, and Natural Gas.
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How does the Sun produce energy?
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The Sun produces energy through Nuclear Fusion by fusing 2 Hydrogen atoms together.
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Explain how Fossil Fuels contain energy that came
from the Sun.
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Fossil Fuels come from once-living organisms
(plants & animals) who lived off energy created
by the Sun.
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Pennsylvania has a large amount of a certain fossil
fuel. What does that tell you about its prehistoric climate?
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PA produces 50 million tons of coal a year! Coal comes from plants buried in swamps over millions of years. PA used to have a
swamp-like environment.
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Final Jeopardy
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What is Mechanical Energy?
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Energy associated with motion or position of an
object.
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What is one way Nuclear Energy can be released?
5 Point Bonus: What is the second way?
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Nuclear Energy can be released through Nuclear Fusion (Sun) or Nuclear Fission (atomic bomb).
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What form of energy travels in waves? What type
of heat transfer is this?
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Electromagnetic energy. This type of heat transfer is
called Radiation.
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Name and describe the other 3 forms of energy.
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Chemical: potential energy stored in chemical bonds (food).
Thermal: total energy in the particles of an object.
Electrical: energy stored in moving electric charges.
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Final Jeopardy
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James _____ wanted to advertise his improved __________ . He compared the _____ it could do to that of a _____ lifting a ________ pound weight a certain distance in a certain time. One
__________ is equal to _______ watts. This unit is used to describe the _____ of ____ .
603010
power 33,000 horsepower746 car steam engine
Watt horse Joule work
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STOP
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James Watt wanted to advertise his improved steam engine. He compared the work it could
do to that of a horse lifting a 33,000 pound weight a certain distance in a certain time. One horsepower is equal to 746 watts. This unit is
used to describe the power of car.