Slide 1

Simple Machines
Prepared by:
Lovelyn M. Mataac
Teacher


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Lever
 A lever is a stiff bar that resists on a support
called a fulcrum which lifts or moves loads.


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Wedge
• A wedge is an object with at least one
slanting side ending in a sharp edge,
which cuts material part.


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Slide 7

Wheel and Axle
 A wheel with a rod, called an axle,
through its center lifts or moves loads.


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Pulley


A pulley is a simple machine that uses
grooved wheels and a rope to raise, lower
or move a load


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Inclined Plane


An inclined plane is a slanting surface
connecting a lower level to a higher level.


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Screw
 A screw is an inclined plane wrapped
around a pole which holds things
together or lifts materials.


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Slide 17

Write the letter of the correct
answer.


1. A. lever

b. pulley


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2. A inclined plane B. screw


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3. A. wheel and axle
wedge

b.


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4. A. wedge

B. lever


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5. a. screw

b. wedge


Slide 22

Assignment:


Study the different landforms.