Force and Motion
All about Newton and Simple Machines
The Basics of Force and Motion
There are three different laws that Sir Isaac Newton created. There are also six different simple machines that will make work easier for us. A common mistake is that the six simple machines make the amount of work easier, but really the amountnofe work is spread threw out the machine and our body.
In the picture below the poster shows the six simple machines.
Newton's First a Law of Motion
The apple has stopped, but because of the first law of motion, the worm will keep going because the worm has inertia.
Newton's Third Law of Motion
In the video above you will see the third law of motion in action! The third law of motion says that for every action there is an quale and opposite force. When the jet boosters blow out the fire they have lots of force and fire coming out of them. Because of the forces that the boosters put off, there is an opposite reaction which is the rocket shooting into the sky as shown in the video above.
The Six Simple Machines
There are six diffrent simple machines. The first simple machine is the inclined plane. The second simple machine is the wedge. The next simle machine is screw. Then comes the lever, and the wheel and axle. The last simple machine is the pulley.
The Wheek and Axle
In the picture above is a wheel and axle. A wheel and axle makes work easier by reducing the amount of friction there is on an object because the wheel turns around the axle.
The Pully
The next simple machine is the pulley. The pulley helps nake wor easier by pulling the llload up instead of you just picking the load up. The pulley makes work easier but unlike how some people get confused it does NOT change the amount of work.
The Wedge
the wedge is realy and inclined plane that you put between two materials to split them apart. The wedge helps make work easier by splitting two materials apart so then you can hit the wedge with mallet or a hammar.
The Screw
The scew helps make work easier by screwing together two materials. The screw is really an inclined plane raped around a wedge.
The Inclined Plane
The inclmed plane maked work easier by lessing the amount of work that the person that has to move the objecct has to do. an inclined plane is the same thing as a ramp. Sttairs are an incliined plane. A screw which is another simple machine is an inclened plane that is raped around a wedge.
The Lever
The lever helps to make work easier by letting someone put an object on one side of the leaver and then you sit or push the other side of the lever. Then you will lift the object up into the air.