3. What are the uses of the following:
a. Lever
b. Inclined plane
C. Pulley
d. Wedge
e. Screw
f. Wheel and axle
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3. What are the uses of the following:
a. Lever
b. Inclined plane
C. Pulley
d. Wedge
e. Screw
f. Wheel and axle
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Lever - It is usually used to move or lift objects.
Inclined planes - are widely used to move heavy loads over vertical obstacles.
Pulleys - they are commonly used to lift objects, especially heavy objects.
Wedge - in mechanics it is a device that tapers to a thin edge, usually made of metal or wood, and used for splitting, lifting, or tightening, as to secure a hammer head onto its handle.
Screw - The most common uses of screws are to hold objects together, such as wood, and it is also used to position objects.
Wheel and axle - It is used to lifting heavy objects, moving people quickly, and moving parts of a complex machine.
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