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What is a lever?

Published on Nov 19, 2015

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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

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

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