Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.
Simple Machines. Common Simple Machines… First, rank the following words from 0-5 (0= you have...
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Transcript of Simple Machines. Common Simple Machines… First, rank the following words from 0-5 (0= you have...
![Page 1: Simple Machines. Common Simple Machines… First, rank the following words from 0-5 (0= you have never heard of this word & 5= you know the word VERY well).](https://reader036.fdocuments.in/reader036/viewer/2022062408/56649e9f5503460f94ba2454/html5/thumbnails/1.jpg)
Simple Machines
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Common Simple Machines…
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• First, rank the following words from 0-5 (0= you have never heard of this word & 5= you know the word VERY well). Second, explain what the following terms mean in your own words:– Machine
– Simple machines
– Work
– Force
– Work input/Work output
– Lever
-Pulley-Wheel & axle-Inclined plane-Wedge-Screws-Compound machine
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The Six Simple Machines
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The Six Simple MachinesLever
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The Six Simple MachinesLever Pulley
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The Six Simple MachinesLever Pulley Wheel & Axle
![Page 8: Simple Machines. Common Simple Machines… First, rank the following words from 0-5 (0= you have never heard of this word & 5= you know the word VERY well).](https://reader036.fdocuments.in/reader036/viewer/2022062408/56649e9f5503460f94ba2454/html5/thumbnails/8.jpg)
The Six Simple MachinesLever Pulley Wheel & Axel
Inclined Plane
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The Six Simple MachinesLever Pulley Wheel & Axel
Inclined Plane Wedge
![Page 10: Simple Machines. Common Simple Machines… First, rank the following words from 0-5 (0= you have never heard of this word & 5= you know the word VERY well).](https://reader036.fdocuments.in/reader036/viewer/2022062408/56649e9f5503460f94ba2454/html5/thumbnails/10.jpg)
The Six Simple MachinesLever Pulley Wheel & Axle
Inclined Plane Wedge Screw
![Page 11: Simple Machines. Common Simple Machines… First, rank the following words from 0-5 (0= you have never heard of this word & 5= you know the word VERY well).](https://reader036.fdocuments.in/reader036/viewer/2022062408/56649e9f5503460f94ba2454/html5/thumbnails/11.jpg)
YOURS: TEXTBOOK:
• A machine is a device that makes work easier by changing the size or direction of a force.
• Examples: wheelchair, scissors, chopsticks
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YOURS: TEXTBOOK:
• A machine or simple device without moving parts.
• Examples: lever, pulley, wheel & axle, inclined plane, wedge, screw
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YOURS: TEXTBOOK:
• Work is the transfer of energy to an object by using a force that causes the object to move in the direction of the force.
• Work is done on an object if two things happen: 1) the object moves as a force is applied, 2) the direction of the object’s motion is the same as the direction of the force.
• Examples: pushing a ball up a hill
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OR ORYES NO YES NO
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YOURS: TEXTBOOK:• A push or a pull
exerted on an object in order to change the motion of the object; force has size and direction.
• Examples: people, bulldozer, static electricity
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YOURS: TEXTBOOK:
• Work input is the work done on the machine.
• Work out put is the work done by the machine.
• Examples: opening a paint can
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YOURS: TEXTBOOK:
• A machine made up of more than one simple machine.
• Examples: manual can opener
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The Six Simple Machines
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The Six Simple MachinesLever
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YOURS: TEXTBOOK:• A lever is a simple
machine that has a bar that pivots at a fixed point, called a fulcrum.
• Examples: first-class lever (see saw), second-class lever (wheelbarrow or soda bottle opener), third-class lever (lifting weights or hammering a nail)
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First-Class Lever Second-Class Lever Third-Class Lever
Elementary School Middle School High School
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The Six Simple MachinesLever Pulley
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YOURS: TEXTBOOK:
• A simple machine that has a grooved wheel that holds a rope or a cable.
• Examples: fixed, moveable, block and tackle
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Types of Pulleys:
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The Six Simple MachinesLever Pulley Wheel & Axle
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YOURS: TEXTBOOK:
• A simple machine consisting of two circular objects of different sizes.
• Examples: car’s wheel & axle, faucet
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The Six Simple MachinesLever Pulley Wheel & Axel
Inclined Plane
![Page 28: Simple Machines. Common Simple Machines… First, rank the following words from 0-5 (0= you have never heard of this word & 5= you know the word VERY well).](https://reader036.fdocuments.in/reader036/viewer/2022062408/56649e9f5503460f94ba2454/html5/thumbnails/28.jpg)
The Six Simple MachinesLever Pulley Wheel & Axel
Inclined Plane Wedge
![Page 29: Simple Machines. Common Simple Machines… First, rank the following words from 0-5 (0= you have never heard of this word & 5= you know the word VERY well).](https://reader036.fdocuments.in/reader036/viewer/2022062408/56649e9f5503460f94ba2454/html5/thumbnails/29.jpg)
YOURS: TEXTBOOK:
• A simple machine that is made up of two inclined planes that move; often used for cutting.
• Examples: knife, axe, door stop
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The Six Simple MachinesLever Pulley Wheel & Axel
Inclined Plane Wedge Screw
![Page 31: Simple Machines. Common Simple Machines… First, rank the following words from 0-5 (0= you have never heard of this word & 5= you know the word VERY well).](https://reader036.fdocuments.in/reader036/viewer/2022062408/56649e9f5503460f94ba2454/html5/thumbnails/31.jpg)
YOURS: TEXTBOOK:
• A simple machine that consists of an inclined plane wrapped around a cylinder.
• Examples: screw, light bulb
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1. What would be easier, a steep inclined plane or a shallow inclined
plane?
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2. What would be easier, a wide wedge or a skinny wedge?
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3. What would be easier, a long, skinny screw or a short, fat screw?
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4. What would be easier, the fulcrum in the middle or the fulcrum
to one side of the lever?
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5. What would be easier, a short axle or a long axle?
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6. What would be easier, a wide rope or a skinny rope?