Give the equation for kinetic energy.
Identify the variables in the equation
and give the units of each.
State the “workkinetic energy theorem.”
Use the workkinetic energy theorem to
explain the following where the energy came from:
In a bobsled?
In an arrow from Robin Hood’s bow?
In a sky diver falling toward earth?
Two football player run at the same speed.
One has a mass of 80 kg the other 120 kg. Which has the greater kinetic
energy? How could the other player get the same energy?
Define: potential energy 
Define: gravitational potential energy

Give the equation for gravitational potential
energy.
Identify the variables in the equation
and give the units of each.
Two elephants climb up into a tree. The
first elephant is afraid of heights and only climbs 3 meters high. The
second is a daredevil and limbs up 12 meters. Which has the greatest potential
energy? What is the ratio of their energy?
Define: elastic potential energy 
Define: spring constant 
Give the equation for elastic potential
energy.
Identify the variables in the equation
and give the units of each.
A spring with a force constant of 5.2 N/m
has a related length of 2.45 m. When a mass is attached to the end
of the spring and allowed to come to rest, the vertical length of the spring
is 3.57 m. Calculate the elastic potential energy stored in the spring.
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