Physics Chapter 11 Work and Energy Activity Analysis
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Questions and Answers

What concept helps us understand many natural phenomena and is closely related to work in science?

  • Power
  • Motion
  • Gravitation
  • Energy (correct)

    • Why do some engines require fuel like petrol and diesel?

  • To decrease the force needed for work
  • To decrease their speed
  • To provide the energy for their working (correct)
  • To increase their weight

    • In the context of work in science, what is the relationship between force and displacement?

  • Displacement does not affect force
  • Force is directly proportional to displacement (correct)
  • Force and displacement are unrelated
  • Force is inversely proportional to displacement

    • Which of the following activities require more energy because they are strenuous?

    <p>Running a marathon</p> Signup and view all the answers

    What do living beings and machines have in common regarding their need for energy?

    <p>They need energy to perform basic activities</p> Signup and view all the answers

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