2. Questions Bank
  3. 5th Class
  4. Science
  5. Work, Force, Energy and Simple Machines

5th Class Science Work, Force, Energy and Simple Machines Question Bank Force, Work and Energy

  • question_answer
    A car jack is a screw. A sea-saw is a:

    A)  Screw                  

    B)                         First class lever                

    C)                         Second class lever         

    D)                         Third class lever

    Correct Answer: B

    Solution :

    A sea-saw is a first-class lever.


You need to login to perform this action.
You will be redirected in 3 sec spinner