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1.
What is a lever?
A simple machine's story
2.
A lever is a simple machine
Photo by
arepyeva_natalie
3.
There are 3 types
first - 1st
second - 2nd
third - 3rd
http://www.enchantedlearning.com/physics/machines/Levers.shtml
Photo by
KGA Team 5th Grade
4.
1st class levers
5.
Can you think of any examples?
The fulcrum is between the input and output force.
6.
A Seesaw
Photo by
karen horton
7.
Scissors
Photo by
m01229
8.
2nd class levers
9.
2nd class
The input and output force act in opposing directions.
10.
wheelbarrow
Photo by
mike hamerton
11.
doors
Photo by
Jaclyn Auletta
12.
3rd class levers
13.
last, but not least - 3rd
The input force is greater, but the distance makes up for it.
14.
baseball bat
Photo by
hj_west
15.
Golf Club
Photo by
chispita_666
16.
Shovel
Photo by
woodleywonderworks
17.
Reflection:
Where would you find these levers in the body?
Photo by
tinyfroglet
18.
Skeletal System
Photo by
Tsahi Levent-Levi
19.
1st class
The joint between your head and vertebra
Photo by
Not So Much
20.
2nd class
Tiptoes
Photo by
jordandouglas
21.
3rd class
your arms
Photo by
Caucas'
22.
Poem: Literary Device
http://literarydevices.net/anthropomorphism/
23.
Write a Poem
"Anthropomorphism is a literary device that can be defined as a technique in which a writer ascribes human traits, ambitions, emotions or entire behavior to animals, non-human beings, natural phenomena or objects" .
24.
Choose one type of lever
Write a poem as if you were that object
25.
Resources
www.ohio.edu
(lever pics)
http://www.enchantedlearning.com/physics/machines/Levers.shtml
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