Simple Machines

A simple machine is a tool with one function that makes our lives easier. Simple machines can be combined with another simple machine to create the all powerful advanced machines that we know and love.
The six simples machines are the wedge, screw, wheel & axel, pulley, lever, and an inclined plane.
A wedge is like a door stopper, a hatchet head, and a knife. A screw's subtypes are a metal construction screw, a drill, and a board cutter.
A ferris wheel, a steering wheel of a car, and windmills are examples of a wheel & axle  Three items that are pulleys are a flag pole pole pulley, a wench pulley, and a roller coaster pulley. A lever's examples are a seesaw, a wire cutter, and a  pair of scissors. Finally, some examples of an inclined plane are a delivery ramp, a rising draw bridge, and a handicap ramp.

Newton's Laws Car Crash

When during a horrific and tragic car collision, Newton's three laws of physics come into discussion.
Once the automobile crahes into the other, Sir Issac Newton's first law is applied. An object in motion tends to stay in motion unless another equal force acts upon it. The car was stopped by the other equal force of the other vehicle. Newton's second law is in place as well (F=ma). If two cars are going at 50 m/s in the same direction at each other with the same mass and the same force, the cars will both come to a complete stop when they smash together. Lastly, Issac's thrid law is in play. For every action, there is an equal but opposite reaction. Both cars will crash into each other and prove Newton's third law to be true.