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13 Cards in this Set
- Front
- Back
Simple machine |
A device that either multiplies or redirects a force |
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Force |
A push or pull exerted on an object in an effort to change that objects velocity |
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A Mechanical Advantage |
The amount by which force or motion is magnified in a simple machine |
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Diameter |
The length of a straight line that crosses from one side of a circle to another, passing through the center |
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Circumference |
The perimeter of a circle: 3.14 x diameter |
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What is applied science? |
Science dedicated to making things better |
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What is technology? |
A new process or machine that makes life better |
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What is a First-Class Lever? |
The fulcrum is positioned between the resistance and the effort |
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What is a Second Class Lever? |
The fulcrum is at one end of the bar, and the resistance is between the fulcrum and the effort |
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What is a Third Class Lever? |
The fulcrum is at one end of the bar, and the effort is between the fulcrum and the resistance |
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Scissors are in what Class? |
First Class |
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What is the mechanical advantage a wheel and axle system. |
Diameter of the wheel Divided by the diameter of the axle |
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A Mechanical Advantage of a screw |
circumference / pitch |