Page 1 :
(PLE MACHINES, , Kai, to make work easier. Archimedes, the, , famous scientist made rl in the form, LTA CISL NUMAN EES felt) 01/1, water from a lower level to a higher level,, , , , A screw is an inclined plane, , Take a square piece of white paper (10 cm x 10 cm) and cut it into two, triangles. Mark the longer edge with a crayon, wrap the paper around a nail, or a pencil and fix the ends with a tape. The coloured edge of the paper, looks like the threads of a screw., , , , Wheel and axle, , The next time you get into a car, look carefully at the steering wheel. It is a, wheel fixed to a rod. Turn the wheel to the left and you will see that the rod, moves. Turn the wheel to the right and again the rod, moves. In fact, any movement of the steering wheel, moves the rod. This moving rod then moves, other parts that help to turn the car. Thus,, , a simple machine helps us to easily turn a, heavy vehicle in any direction., , A simple machine made up of wheel, , and axle is called the wheel and axle,, , The axle is a small rod into which goes, , a wheel. Any movement of One causes a, movement of the other,, , Machines like car, sewing machine,, eggbeater, door knob etc. have a wheel and, axle arrangement in them.