physics 610 1.1

Lever is used to lift heavy weights with minimum amount of effort.

• true

• false

The classification of lever is based on:

• fulcrum

• load

• effort

• all of the above

The wheel and axle is a modified lever of the first class.

• true

• false

Lever is a _____________

• modified lever of the first class

• pulley that moves with the load

• rigid bar or rod that rests on a support called fulcrum

Types of pulleys

Six types of simple machines:

Load x Load Arm =