Class 9 Simple Machines Quiz
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Questions and Answers

Which of the following is a characteristic of simple machines?

  • They change the direction of the force
  • They decrease the amount of work done
  • They have no effect on the amount of work done
  • They increase the amount of work done (correct)

    • What is the primary function of a lever?

  • To magnify the input force (correct)
  • To change the direction of force
  • To reduce the applied force
  • To decrease the work output

    • What is true about inclined planes?

  • They increase the effort required to lift an object vertically
  • They reduce the effort required to lift an object vertically (correct)
  • They make it impossible to lift an object vertically
  • They have no effect on lifting an object vertically

    • Which statement is correct about pulleys?

    <p>They increase the distance over which a force can be applied</p> Signup and view all the answers

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