Difference between revisions of "Moment"
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===Example Calculations=== | ===Example Calculations=== | ||
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| + | | style="height:20px; width:200px; text-align:center;" |'''A 20N force of effort is applied at a [[perpendicular]] distance of 0.15m from the pivot. Calculate the Moment.''' | ||
| + | | style="height:20px; width:200px; text-align:center;" |'''A 20N force of effort is applied at a [[perpendicular]] distance of 14cm from the pivot. Calculate the Moment.''' | ||
| + | | style="height:20px; width:200px; text-align:center;" |'''A 20N force of effort is applied at a [[perpendicular]] distance of 100mm from the pivot. Calculate the Moment.''' | ||
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|[[File:MomentSpanner1.png|center|200px]] | |[[File:MomentSpanner1.png|center|200px]] | ||
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|[[File:MomentSpanner3.png|center|200px]] | |[[File:MomentSpanner3.png|center|200px]] | ||
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| − | | style="height:20px; width:200px; text-align: | + | | style="height:20px; width:200px; text-align:left;" |'''A 20N force of effort is applied at a [[perpendicular]] distance of 0.15m from the pivot. Calculate the Moment.''' |
| − | | style="height:20px; width:200px; text-align: | + | | style="height:20px; width:200px; text-align:left;" |Text |
| − | | style="height:20px; width:200px; text-align: | + | | style="height:20px; width:200px; text-align:left;" |Text |
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|[[File:MomentHammer1.png|center|200px]] | |[[File:MomentHammer1.png|center|200px]] | ||
Revision as of 09:22, 14 October 2018
Key Stage 3
Meaning
A moment is the turning effect of a force.
About Moments
- When a force acts on an object with a pivot it becomes a turning force called a moment.
- A moment can be calculated by multiplying a force by the distance from a pivot.
- Moments can be used to make Force Multipliers using a pivot and lever.
- The longer the lever, the larger the moment that can be produced.
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| Using moments an effort can be used to lift a load. If the pivot is closer to the load than the effort then the force of effort can be smaller than the load to lift the object. |
Equation
Moment = Force x Perpendicular distance from the pivot.
\[M = F \times d\] Where:
- M = Moment
- F = Force
- d = Perpendicular distance from the pivot.
Example Calculations
| A 20N force of effort is applied at a perpendicular distance of 0.15m from the pivot. Calculate the Moment. | A 20N force of effort is applied at a perpendicular distance of 14cm from the pivot. Calculate the Moment. | A 20N force of effort is applied at a perpendicular distance of 100mm from the pivot. Calculate the Moment. |
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| A 20N force of effort is applied at a perpendicular distance of 0.15m from the pivot. Calculate the Moment. | Text | Text |
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| Text | Text | Text |