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### 5 Cards in this Set

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• Back
 A device that reduces the amount of force needed to perform a task or changes the direction of a force. Simple Machine A push or pull that changes the motion of an object Force the amount by which force or motion is magnified in a simple machine Mechanical Advantage the distance around a circle, equal to 3.1416 times the circle's diameter = 3.1416 X (diameter) circumference the length of a straight line that travels from one side of a circle to another, while passing through the center of the circle (Measure of the size of a circle) diameter