Topic 1 - Turning Effects and Centre of Gravity (Paper 2) Flashcards

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1
Q

what is the formula for a moment?

A

moment = force x perpendicular distance between line of action and pivot

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2
Q

how would you get the maximum moment?

A

push at right angles to the object

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3
Q

what is the centre of gravity?

A

the point through which the weight of a body acts

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4
Q

how would you find the centre of gravity of any flat shape?

A
  1. suspend the shape and a plumb line from the same point and wait until they stop moving
  2. draw a line along the plumb line
  3. do the same thing again but from a different pivot point
  4. centre of gravity is where the two lines cross
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