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Simple Machine Important questions | Grade VIII

Simple Machine Important questions | Grade VIII

Important questions for Simple Machine for Grade VIII

  1. Define simple machine .
  2. What is meant by complex machine ? Give examples .
  3. Write the advantages of a simple machine .
  4. Write the types of simple machine .
  5. State the principle of simple machine .
  6. Define output work and input work .
  7. What is meant by perfect or ideal machine ?
  8. Define load , effort and fulcrum .
  9. What is effort and load distance ?
  10. Define Mechanical advantage . Write its formula .
  11. Define velocity ratio .
  12. Define efficiency.
  13. M.A. of machine is 3 . What does it mean ?
  14. V.R. of a machine is 5 . What does it mean ?
  15. The efficiency of simple machine is 80% . What does it mean ?
  16. Write the method to increase the efficiency of simple machine .
  17. Define lever . Write its type .
  18. Define first , second and third class lever with diagram . Give their example .
  19. Write the advantages of first , second and third class lever .
  20. Define pulley .
  21. Write the types of pulley .
  22. Define fixed , movable , mixed pulley with diagram .
  23. What is inclined plane ? Give example and diagram .
  24. Define wheel and axle with example and diagram .
  25. Define screw with example and diagram .
  26. What is wedge ? Give example and diagram .
  27. Which simple machine is called a continuous lever ? Why ?
  28. Scissors is called simple machine . Why ?

Some useful links : Important Model Question paper biology |HSEB | grade XII| ,  Motion Important questions | Grade VIII

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