a push or pull that causes an object to move, stop or change

a force that causes objects with mass to attract with each other

how an object moves from one place to another

forces on an object that cause change in the motion of the object

a flat surface set at an angle

a rigid bar pivoted on a fixed point

a simple machine consisting of a wheel over which a rope or chain is pulled to lift a heavy object

a type of fastener with a ridge wrapped around a cylinder

tools that make work easier

a piece of material that is thick at one end and tapered to a thin edge at the other

a circular object that moves around a fixed point; used to move heavy objects