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SIMPLE MACHINES
1. LEVER
2. PULLEY
3. INCLINED PLANE
4. GEARS
5. WHEEL & AXLE
A machine is a tool used to make work easier.
Simple machines are simple tools used to make work easier.
Compound (complex) machines have two or more simple machines working together to make work easier.
Here are a few examples of simple machines: 1. INCLINED PLANE- Slanting surface connecting a lower level to a
higher level.
Roller coaster A truck
Inclined slide
Inclined slide
Rail-way ladder
Inclined slide
Bath tub fan
2. LEVER- Stiff bar that rests on a support called a fulcrum which lifts or
moves load.
Hammer
A bat
A bat
A fork
A scissor
3. PULLEY- Simple machine that uses grooved wheels & a rope to raise,
lower or move a load.
Well
4. GEARS- here are some features of gears that are normally used in machines.
Here are some examples of machines that use gears to help make work
easier.
A clock
Factory machines
A truck
Office gadgets
WHEEL & AXLE- A wheel with a rod, called an axle, through its center lifts
or moves loads.
Bicycle wheel
Fan
Roller blade Telephone
Wind mill
Now think! Look at the pictures and what types of
simple machines do you think they are under?
INCLINED BOARD
SHOE LACE
A STAPLER
FLAGS
EGGBEATER
STAIRS
BOTTLE OPENER
TROLLEY
Where can find you find GEARS in you everyday lives?
At home??
At school??
In cars??
In playground??
Do you think you can find gears in these pictures?
A CLOCK
A DRUM SET
A SCISSOR
A TRUCK
INCLINED PLANE
WHY?- it has Slanting surface connecting a lower level to a
higher level.
PULLEY
WHY?- it uses grooved wheels & a rope to raise,
lower or move a load.
LEVER
WHY?- it has a Stiff bar that rests on a support (a
fulcrum) which lifts or moves load.
WHEEL AND AXLE
WHY?- it has a wheel with a rod, called an axle, through
its center lifts or moves loads
YES!
YOU CAN FIND GEARS IN A CLOCK
YES!
YOU CAN FIND GEARS IN A DRUM
SET
NO!
YOU CAN’T FIND GEARS IN A
SCISSOR
YES!
YOU CAN FIND GEARS IN A TRUCK
THE ENDTHE END
