Difference between revisions of "Equilibrium Forces"
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | + | '''Equilibrium forces''' are a pair of equal [[magnitude]] [[force]]s acting on opposite sides of an [[object]] in opposite directions. | |
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| + | ===About Equilibrium Forces=== | ||
| + | : '''Equilibrium forces''' can act to stretch or squash an [[object]]. | ||
| + | : When an [[object]] is acted on by two equal, but opposing [[force]]s, the object is in '''equilibrium'''. | ||
| + | : [[Elastic]] [[object]]s like [[Coil Spring|springs]] need two opposing [[force]]s to change length. Once the [[force]]s have been applied the [[Coil Spring|spring]] will stay at this new length until the [[force]]s are removed. | ||
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Revision as of 14:12, 7 February 2019
Key Stage 3
Meaning
Equilibrium forces are a pair of equal magnitude forces acting on opposite sides of an object in opposite directions.
About Equilibrium Forces
- Equilibrium forces can act to stretch or squash an object.
- When an object is acted on by two equal, but opposing forces, the object is in equilibrium.
- Elastic objects like springs need two opposing forces to change length. Once the forces have been applied the spring will stay at this new length until the forces are removed.
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| The spring will stretch to a certain length and then stay the same due to two opposing forces. |
- If one force were bigger than the other the elastic object would accelerate rather than stretch. This is what happens when a rubber band is flicked. It begins in force equilibrium stretched by two fingers pulling in opposite directions. When one finger is removed there are no longer two opposing forces so the rubber band accelerates.