Module 4 Vocabulary Flashcards

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1
Q

Simple Machine

A

A device that either multiplies or redirects a force.

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2
Q

Force

A

A push or pull exerted on an object in an effort to change that object’s velocity.

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3
Q

Mechanical Advantage

A

The amount by which force or motion is magnified in a simple machine. Extra information:
Mechanical Advantage for a Lever=(distance from fulcrum to effort)divided by(distance from fulcrum to resistance).
Mechanical Advantage for a Wheel And Axle=(diameter of the wheel)divided by(diameter of the axle).
Mechanical Advantage for a Pulley= number of pulleys used.
Mechanical Advantage for a Wedge (and an Inclined Plane)=(length of slope)divided by(height).
Mechanical Advantage for a Screw= (circumference)divided by(pitch).

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4
Q

Diameter

A

The length of a straight line that travels from one side of a circle to another and passes through the center of the circle.

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5
Q

Circumference

A

The distance around a circle, equal to 3.1416 times the circle’s diameter.

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