Vocabulary No.3 Simple Machine

Simple Machine: a device with few parts that males it easier to do work

Effort Force: the force applied to machine

Resistanced Force: the force that a machine acts against

Lever: a simple machine made of a rigid bar on a pivot point

Fulcrum: the pivot point of a lever

Mechanical Advantage: the nomber of a times a machine multiplies the force applied

Pulley: a grooved wheel that turns by the action of a rope in the groove

Wheel and Axel: simple machine made of handle or axis attached to the center of a wheel