

Speed Velocity Acceleration Constant Acceleration Free Fall Forces and Newton's Law Kinetic Energy Potential Energy Free Fall Forces Conservation of Energy Conservation of Momentum PHYSICS LINKS Thinkquest Physics LibraryPhysics Zone Multimedia Physics Studio 
Potential Energy An object has not only kinetic energy (the energy of motion), but also potential energy. Potential energy has nothing to do with motion. An object's potential energy is determined by its position relative to the ground. Potential energy is equal to the product of an object's weight (m x g) and its height:(h).
Solution: Step 1:
Step 2: Plug the data into the given formula: Answer: The object's potential energy is 2450 J.
Cat sitting high up in a tree
Solution: Step 1: In this problem we are given the following: m =12 kg Step 2: Plug the data into the formula and solve the problem:
50 J/117.6 = h
h = 0.43 m Answer: The cat is located 0.43 m above the ground.
Problem:
Girl running up a flight of stairs
Solution: Step 1: In this problem we are given the following: PE = 1000 J Step 2: Plug the data into the formula:
1000 J/ 49 = m
m = 20.4 kg Answer: The child's mass is 20.4 kg 