Page 37 - Science Class 6 Times Publication

F
E

L
L
E E
F
F

Fishing rod L Fire tongs
Broom

E F
F E F
E
L

L L
Stapler Shovel Spoon

2. Pulley
A pulley is a hard metallic or wooden disc with a grooved rim. A rope
moves around the groove of the disc. The load is tied to one end of the
rope and it is pulled from another end of the rope by applying effort.

E Rope
Wooden disk

Wooden disk
Rope

L L
E

Single xed pulley Single movable pulley

A pulley can be classied into two types-single xed pulley and single

movable pulley. In a single xed pulley, a circular disc is xed at a

point. The disc can rotate about the axle. But in a movable pulley,
one end of the rope is tied to a rigid support and the effort is applied
from other end of rope. The circular disc moves along with load.

Times' Crucial Science and Environment 33 Book 6