1st+The+Killers-Sady,and+Emily

This is our video for contraption! (Sady and Emily) in this video you will see Sady and Emily turn on a hair dryer,wich is Elctrical energy, getting converted to wind energy,wich knocks a baloon in to a barn door, wich fallsover, andknocks over 3 cd cases taped together. That then knocks over a ruler being heald up by a small fence. The ruler knocks in to a pingpong ball that was sitting on a slide. The pingpong ball goes down the slide, and at the end of th slide is a tick-tack box filled withstickers. then pingpong ball hits this, and knocks it in to a bucketof water, where the kid will retrievthe sticker.

Kinetic energy increas when mass increas. The kentic energy had the most power when it was going down. Kinetic energy=mass x velocity2 / 2. Potential is when it was at the hightest point. potential energy- is energy that is stored. energy is the abilty to do work or do change. energy and work are relatid. joule- is what all energy is measured in.

kinetic-
 * pingpong ball going down a ramp
 * ball rolling down a hill
 * wheel turning

g potential-
 * something going down a coill
 * going down a ranp
 * something droping in a tube

chemiacl-
 * battery
 * water and oil
 * reantione(bakeing soda and vinsger)

mechanical-
 * wheel
 * nkeoing something over
 * emily-wood and other stuff?
 * sady- eney thing i can find?