Work Done on a Spring (AQA GCSE Physics): Revision Notes
📚 Revision Notes
5.3.4 Work Done on a Spring
Springs
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Key Points
- To stretch, bend, or compress an object, more than one force must be applied.
- If a single force is applied, the object will move in the direction of the force rather than changing shape.
- To stretch an object, forces must be applied in opposite directions on either side.
- If an object is fixed at one end and a force is applied at the other, the fixed point provides a counteracting force, allowing the object to stretch.
Deformation
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Deformation refers to a change in the shape of an object due to the application of forces.
Types of Deformation
- Elastic Deformation:
- The object returns to its original shape after the force is removed.
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Example: An elastic band stretches when pulled and returns to its original shape once the pulling force is removed.
- Plastic Deformation:
- The object does not return to its original shape after the force is removed, leading to a permanent change.
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Example: A spring that has been stretched too far and does not return to its original length.