CBSE  /  Class 8  /  Science  /  Some Natural Phenomena

  • 1. 
    Which is the surest test of charge on a body?

  • Repulsion
  • Lightning
  • Combustion
  • Insulation

  • 2. 
    Which of the following can be charged with static electricity ?

  • Metal
  • Alloy
  • Insulator
  • Semiconductor

  • 3. 
    Which of the following occurs during lightning?

  • Acid rain
  • Nitrogen fixation
  • Green house effect
  • Earthing

  • 4. 
    Which of the following can be charged by rubbing?

  • Ebonite
  • Plastic
  • Amber
  • All of these

  • 5. 
    When two bodies are rubbed against each other, they acquire

  • equal and like charges
  • equal and unlike charges
  • unequal and like charges
  • unequal and unlike charges

  • 6. 
    It is a convention to call the charge acquired by a glass rod when it is rubbed with silk as __________

  • 7. 
    A device used to test whether an object is carrying charge or not is called ______.

  • 8. 
    During lightning actually _____________ takes place

  • 9. 
    During a thunderstorm which action may be done?

  • 10. 
    To protect tall buildings from the damage of lightning, what can be done?

  • Not to build tall buildings
  • Install lightning conductors
  • Install many TV antennas
  • Have a roof top garden with tall trees
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