Energy Types
What is the mechanical energy of an object with 550 J of PE and 100 J of KE?
650 J
Solar panels use this type of energy in order to generate power
What is radiant energy
A boy pushes on a parked car with a force of 200 N. The car does not move. How much work does the boy do on the car?
None or 0, if there is no movement, there is no work!
A medicine ball has a mass of 5 kg and is thrown with a speed of 2 m/s. What is its kinetic energy?
Ek =½ mv2 (.5*m*v*v)
10 J
This is the energy of light from electromagnetic rays
Radiant
What 3 things do you need to find potential energy
mass, gravity, height of the object