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3 cards from this section. Quick, good the night before a test.
What is the formula for calculating a moment?
Think about the turning effect caused by a force.
If a 10 N force is applied 3 m from the pivot, what is the moment?
Use the moment formula.
What does the Principle of Moments state?
Consider what it means for an object to be balanced.
True or False: The moment of a force is calculated as Force divided by Distance.
Think about how the force affects rotation.
A uniform beam weighing 100 N is 4 m long. A 50 N weight is hung at one end. Determine where to place a 25 N weight on the opposite side to keep the beam in equilibrium.
Remember that the longer side will require proportionately more weight or distance.
A lever has a pivot at one end, a load of 60 N located 1 m from the pivot, and an effort is applied 3 m from the pivot. What is the minimum force required to lift the load?
Set moments on either side of the pivot equal.
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