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Block-6: Simple Machines
What are machines?
https://prezi.com/v/cj64oeenn3nc/
1
Please remember that machines help to reduce the amount of effort and energy needed to do a particular work.
2
All complicated machines have a basic building block and what is that ?
Ans: SIMPLE MACHINES
a
In this block we will focus only on simple machines
b
In this lesson we will deal with 2 types of simple machines
3
Inclined plane
Read
It is made up of a flat surface connecting a higher level with a lower level. Let us watch the clipping in the next slide to understand what the inclined plane is all about.
Watch these and try some of the stuffs shown in the second clipping:
Videos
Wedge is the second type of simple machine that we are going to deal with today. A wedge is a movable simple machine made up of2 inclined planes joined together at a sharp edge.
4
Let us watch this clipping to understand more in details about a wedge.
To understand why teeth of a zipper are wedges, let us click here: https://www.youtube.com/watch?v=WEf28mF4DoY
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