Physics- Elasticity and Work done

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1. Define 'power'- in physics terms

  • A measure of how quickly work is being done
  • A measure of how much of an affect a force has
  • How much force is required to change an object
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2. Power=...

  • time taken/ work done
  • work done/ time taken
  • work done x time taken

3. When is 'work done'?

  • When energy is transferred by a force
  • When energy is used to alter something

4. Complete the equation... Work done=

  • force x distance moved in direction of the force
  • distance moved in direction of the force/ force
  • force + distance moved in direction of the force

5. When can an object store elastic potential energy?

  • When it is squashed or stretched
  • Only when it is stretched
  • Only when it is squashed

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