Simple Machines Flashcards by Genevieve Jurajda | Brainscape

Q

If MA Advantage is greater than 1…

A

less effort and greater distance

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Q

If MA is less than 1…

A

more effort and less distance

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Q

IMA

A

friction loss is not considered

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Q

AMA

A

friction loss is considered

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Q

First class lever

A

fulcrum is in the middle

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Q

Second class lever

A

resistance is in the middle

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Q

Third class lever

A

effort is in the middle

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Q

Moment

A

turning effect of a force about a point (M = d x F)

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Q

Torque

A

a force tending to produce rotation

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Q

Efficiency

A

AMA/IMA x 100

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Q

Wheel and Axle IMA

A

Diameter of effort x Diameter of resistance

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Q

Fixed Pulley

A

first class lever, changes force direction

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Q

Movable Pulley

A

second class lever, force directions stay constant

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Q

Pulley IMA

A

number of strands opposing the force of the load

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Q

Inclined Plane IMA

A

length of ramp / height of ramp

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Q

Wedge IMA

A

length (perpendicular to height) / height

Q

Screw IMA

A

Circumference / Pitch