Energy Types
Movement of electrons
What is electrical energy?
A fan
What is electrical to mechanical?
Energy of motion
An apple is hanging from a branch 5 m high. What is the KE?
What is 0 J?
What is the PE equation?
PE = m x g x h
Stored in the nucleus of an atom
What is nuclear energy?
A flashlight
What is chemical to radiant (light)?
Energy based on position
What is potential energy?
What is the KE of a 12 kg object moving at 1 m/s?
What is 6 J?
A 2 kg rock is sitting on a cliff 10 m high. What is the PE?
What is 196 J?
Gears turning in a watch
What is mechanical energy?
Battery-operated radio
What is chemical to sound?
Chemical and nuclear are almost always this type of energy.
What is potential energy?
What is the KE of a 250 kg object moving at 5 m/s?
What is 3125 J?
A 50 kg skateboarder is on top of a 2 m ramp. What is the PE?
Movement of particles in an object
What is heat (thermal) energy?
Law of Conservation of Energy
What is "Energy Can Neither Be Created Nor Destroyed?"
Unit of energy
Joule (J)
What is the KE of a 121.5 kg object moving at 60 m/s?
What is 218,700 J?
A 200 kg coaster car is sitting at the top of a 20 m hill. What is the PE?
What is 39,200 J?
What is chemical energy?
A car
What is chemical to mechanical?
Equation for calculating kinetic energy
KE = 1/2mv2
A 550 kg roller coaster is moving down a track at 80 m/s. What is the KE?
What is 1,760,000 J?
What is the mass of a baseball 10 m in the air if it has 1470 J of PE?