Mass-how much matter is in an object
Weight-effected by gravity
Force-a push or pull
-2 types-balanced,unbalanced
Gravity-
Friction
Inertia-Isaac Newton's 1st rule: an object at rest will stay at rest until the force acts upon it and an object in motion will stay in motion until the force acts upon it
Momentum
Velocity-speed and direction
Centrifugal Force
Centripetal Force
Work
Energy
Potential Energy
Kinetic Energy
Inclined Plane-a flat surface that is raised so one end is higher than the other
Pulley-a cord/rope wrapped around a wheel or series of wheels
Wedge-two inclined planes back to back
Lever-a bar that rests on a fulcrum
Screw-an inclined plane wrapped around a cylinder or cone
Wheel and Axle-a lever attached to a bar
Compound Machines-a combination of more than 1 simple machine
Isaac Newton-3 laws of motion

Newtons 3 Laws

1-an object at rest will stay at rest until the force acts upon it and an object in motion will stay in motion until the force acts upon it


2-the greater the mass, the greater the force


3-every action has an equal and opposite reaction


Three types of Levers

1-the fulcrum is in the middle and the force and resistance are on either side

2-a lever with the resistance in the middle, and the fulcrum and effort on the ends

3-has the effort in the middle and the resistance and fulcrum on the ends