Phys 2.1 - Moments

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  • Created by: Dan
  • Created on: 03-05-13 23:01
What is a moment?
The turning effect of a force is called its moment
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How do we work out the size of a moment?
M = F x D
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What does M stand for?
Moment of force in newton metres, Nm
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What does F stand for?
Force in newtons, N
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What does D stand for?
Distance from line of action of the force to pivot
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How do you increase a moment?(2)
Either increase force, or increase distance from pivot
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How is it easier to undo a wheel-nut, long or short spanner?
Long
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Why?
Long spanner increases distance between line of action of force and pivot
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When using levers, what is the force we are trying to move called?
A load
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What is the force applied to this lever called?
The effort
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What do levers act as?
Force multipliers
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Other cards in this set

Card 2

Front

How do we work out the size of a moment?

Back

M = F x D

Card 3

Front

What does M stand for?

Back

Preview of the front of card 3

Card 4

Front

What does F stand for?

Back

Preview of the front of card 4

Card 5

Front

What does D stand for?

Back

Preview of the front of card 5
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