Simple Machines
Published on Nov 20, 2015
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PRESENTATION OUTLINE
WE USE AND SEE SIMPLE MACHINES EVERYDAY. FROM
Photo by kevin dooley
Simple Machines are things that are made to make tasks easier.
Combining two or more simple machines in a thing makes up a COMPLEX MACHINE.
This is a stapler.
Now can you tell what kind of simple machine is this?
You are given 1 minute to answer.
(Student who gets the correct answer will get a prize at the end of the presentation)
Photo by Leo Reynolds
This is a lever.
What is a lever?
A lever is a simple machine that is made up of a board or bar that rests on an object.
A lever is a simple machine that is made up of a board or bar that rests on an object. The object that holds up the bar is called a fulcrum
THERE ARE 3 PARTS OF A LEVER.
THE STAPLES ARE THE LOAD AND THE EFFORT IS YOUR HAND. THE HANDLE OF THE BLUE JOINT IS THE FULCRUM.
Therefore, a stapler is a lever. A third-class lever.
First Class,Second Class and Third Class
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If you are still confused, here is an example.
This is a pair of scissors.
It is also a lever. But what kind of lever?
Based from the information earlier, guess what kind of lever is the pair of scissors.
(A prize goes to the lucky student who gets the correct answer.)
You are given 1 minute to answer.
Photo by Leo Reynolds
Based from the information earlier,
It's a first class lever.
Here's another one.
This is a staircase.
What kind of simple machine is this?
You are given 1 minute to answer.
(Student who gets the correct answer will get a prize at the end of the presentation)
Photo by Leo Reynolds
The staircase is a inclined plane.
What is a inclined plane?
An inclined plane is a flat supporting surface tilted at an angle with
one end higher than the other, Is an aid for raising or lowering a load
The inclined plane reduces the effort.
This is because the effort moves the load into a greater distance.
In conclusion, we have studied
Photo by r.nial.bradshaw
