a basic mechanical device that either reduces effort or increases the magnitude of motion to do a job

A simple machine would help make work...

A(n) ________ is a rigid bar that rests on a pivot point.

A(n) ___________ is a two dimensional surface whose opposite ends are at different heights. Examples include loading ramps.

A(n) ___________  is any rotational system having unrestricted range of motion. Examples include bicycle tires

A(n) ___________  is is a wheel with a groove around its outer circumference mounted on an axle. A rope rests in the groove and moves with the pulley as it rotates. Examples include single-fixed, single-moveable, and block-and-tackle.

A(n) ___________   is a fastener that consists of a long, thin wedge wrapped around a shaft in a spiral called a screw thread. Examples include a lightbulb.

A(n) ___________  a 3-dimensional object that uses inclined planes to exert a force to spread a material apart as it is forced into the material. An example includes an axe or knife.

The pivot point on a lever

he work done to the lever

The load being moved

class lever has the effort in the middle of the lever

class lever has the fulcrum in the middle of the lever

class lever has the resistance in the middle of the lever