Show:
Types of Energy
Kinetic Energy
Potential Energy
Work --> Energy
All is conserved!
100
This type of energy often accounts for apparent "loss" of energy when potential energy transfers to kinetic energy.
What is THERMAL energy?
100
This is the formula for final velocity when you know a system's mass and total kinetic energy.
What is the square root of (2*KE/m)?
100
This is the effect of doubling the mass on total potential energy.
What is PE also doubles?
100
This is the definition of "work", in terms of energy.
What is "change in kinetic energy"?
100
This type of energy is the sum of potential and kinetic energy.
What is mechanical energy?
200
He is credited for articulating the formula for "rest" energy.
Who is Albert Einstein?
200
This does NOT affect a skier's potential or kinetic energy when skiing down a hill.
What is the angle of incline?
200
This is another name for potential energy.
What is "stored energy"?
200
This is the amount of work done on a system whose kinetic energy increased from 3.80 x 10^3 J to 6.70 x10^5 J.
What is 6.66 x 10^5 J?
200
This is the formula for the Law of Conservation of ME.
What is initial PE + KE = final KE + PE?
300
The type of energy in a tire swing at rest.
What is Potential Energy?
300
This is the velocity of a 65kg runner in kinetic energy of 1.5 x 10^2 J.
What is 2.1 m/s?
300
This is what happens to your potential energy as you stand on the roof of your house vs. on the ground.
What is your gavitational potential energy INCREASES?
300
This man is credited for defining the work- energy theorem.
Who is James Joule?
300
This is the velocity of a 57 kg diver when she hits the water after jumping from a 15 m cliff.
What is 17 m/s?
400
Type of energy present in a skier's decent down a slope.
What is potential AND kinetic energy?
400
The is the kinetic energy of a 5.0 g bullet traveling 30.0 m/s.
What is 0.02 J?
400
This is the height of a diver (w/ mass of 52 kg) with potential energy of 1.47 x10^3 J.
What is 2.9 m?
400
This is the change in kinetic energy when I exert a 825N force to move a 400 kg box 35m.
What is 2.9 x 10^4 J?
400
This is the height of the hill that a 49 kg skateboarder decends with a final velocity of 18.2 m/s at the bottom.
What is 16.9 m?
500
This is the energy transfer that occurs when marathoners eat oatmeal before a race.
What is chemical energy transforming into kinetic (& thermal) energy?
500
This is the mass of a basketball with total kinetic energy of 40.0 J and a velocity of 3.7 m/s.
What is 5.8 kg?
500
This is the weight of a boulder sitting on top of a 50 m high cliff with a gravitational potential energy of 2.0 x 10^4 J.
What is 400 N?
500
This is the amount of work done when a 59 kg runner accelerates from 8.0 m/s to 12.0 m/s.
What is 2.4 x 10^3 J?
500
This is the velocity of a 61kg skier half-way down a 35 m high slope. (assume the skier started at rest)
What is 19 m/s?