There are so much concepts to physics it seems endless to knowing everything. We are currently learning about energy and work. There are two different energies that we are studying now and they are potential energy and kinetic energy. This past weekend i was sick at home with the stomach flu and watch alot of tv because thats pretty much all i could do. I flipped through the channels and came across an amusement park channel. The first thing that popped in my mind was physics. Potential energy is an elevated position that is measured by multiplying its weight and height together. Kinetic energy involves movement and is calculated by multiplying 1/2its mass by its speed squared. Unlike potential energy, kinetic moves only in a positive direction. The roller coaster i saw had both potential and kinetic energy because it moved up and back down. Sorry i dont have a picture from the tv so i couldnt load one up. So i related watching things on tv to what i learn in physics.=) Heres a pic of a roller coaster from the internet.