Newton's Laws of Motion

In science class, we are learning about Newton's Laws of Motion. The first law says that an object at rest will remain at rest and an object in motion will remain in motion at constant velocity unless acted upon by an unbalanced force. The tendency of objects to remain in motion or stay at rest is called inertia. Think about this: when you are traveling in a car and the car stops, you keep moving forward and your seatbelt stops youfrom flying out the windshield. You remaining in motion is an example of inertia. When you are riding your bike, the reason you don't go on forever is friction. Friction is the outside force that stops you from going on forever. The second law of motion says that force equals mass times acceleration. Compare a big car to a small car. The big car requires more gasoline to be burned than the small car in order to start moving. The third law says that for every action, there is an equal and opposite reaction. For example, when you stretch a rubber band, you are exerting a force to stretch it. The rubber band exerts a force on you, and when you let go, the rubber band retuns to its original condition. The three laws of motion were first published on July 5, 1687. The three laws form the basis of classical mechanics (I have no idea what that is) and directly relate the forces acting on a object to the motion of an object. For more information on Newton's Laws of Motion, go to: http://en.wikipedia.org/wiki/Newton%27s_laws_of_motion.
For more information on Isaac Newton himself, go to: http://en.wikipedia.org/wiki/Isaac_Newton.