Simple Machines are Pulley, Wedge,
Lever, Wheel and Axle, Inclined Plane,
These Machines help us do our work a lot
Wheel and Axle
This machine is called the wheel and
axle. The wheels help people move
around with the chair quickly and with
less force. While the chair is
moving,the wheels are rotating around
their own axle. This one is located
inside my room.
The second example is a doorknob. A
doorknob is a wheel and axle because
the knob rotates around an axle, which
unlatches the door. Located on the
This is a staircase, Staircases help us move
from one level to another. A staircase is an
inclined plane, you move up and down over
a greater distance and greater force as
opposed to jumping up or falling down a
level of a house, which will take a longer
time and greater force. This staircase is
located in my house next to the living room.
The bottom of this sink is an inclined plane.
The inclined plane of the sink slides the
water down the drain.
Knives are wedges. When you push a
knife through food, it slices the food
into smaller pieces. Located in my
This fork is also a wedge. When you
slide it under a steak or whatever, it’s
a wedge. However when you press
down on the handle and it lifts the
steak, it’s a lever because there is a
fulcrum. Located in my kitchen.
The shoelaces are pulleys. You
have to pull the laces to keep your
shoes on your feet. Located in my
This thing on the washing
machine is a pulley. You have to
pull it to use the washing machine.
Located in the basement.
A screw is a simple machine. You
use this screw to screw something
on the wall. Located in the tool
The bottom of this light bulb is a
screw. You twist it into a light
socket. Located in the living room.
Scissors are levers because, the
fulcrum is between the applied
force. The load are the blades.
Your hands are applying the force,
and scissors are the first class
levers. Located in the living room.
A broom is a are third class lever.
The fulcrum is the end point, the
effort is in the middle, the place
where you grip, and the load is the
things you are sweeping away.
Located in the Kitchen.
A compound Machine is anything that has
two or more of the six simple machines.
Compound Machines help us do our work
Examples of Compound
A stapler is a compound machine.
It is made up of two Simple
Machines, Wedge and Lever. The
staples in a stapler are wedges
because they pierce through
papers. The top arm of the stapler
is a Lever, it has a fulcrum or a
pivot point, which allows the top of
the stapler to move up and down.
When you put energy on this
lever, it transfers energy into a
staple, which staples the paper.
This stapler is located in the living
This can opener is made up of 4
simple machines. First is the
wheel and axle which is the
handle, when you turn the handle
energy transfers to the wedge and
the gears, which opens the can.
Second is the wedge, the thing
that slices open the can is the
wedge. Third are the gears, those
little circles that grip and help
rotate the can are the gears.
Lastly is the lever, the arms of the
can opener are the levers. These
two levers open and close on one
fulcrum to grip and help open the
can. This can opener is located in
A particular slide catching your eye?
Clipping is a handy way to collect important slides you want to go back to later.