CBSE  /  Class 8  /  Science  /  Some Natural Phenomena

  • 1. 
    The process of transfer of charges from a charged object to the earth is called

  • earthing
  • lightning
  • oscillation motion
  • electron movement

  • 2. 
    The power of an earthquake is expressed on a scale called

  • seismic scale
  • iron scale
  • richter scale
  • large scale

  • 3. 
    Which instrument is used to measure earthquake?

  • Richter scale
  • Seismograph
  • Polygraph
  • None of these

  • 4. 
    Which is not a natural phenomena?

  • Earthquakes
  • Cyclones
  • Lightning
  • Earthing

  • 5. 
    How many types of charges are gained by rubbing objects?

  • 2
  • 1
  • 3
  • 4

  • 6. 
    Where is the lightning rod attached to protect the building from lightning?

  • On the top of the building
  • On the bottom of the building
  • In the middle of the building
  • All of these

  • 7. 
    Lightning always follows

  • a thunder
  • rain pour
  • the easiest path
  • a straight path

  • 8. 
    Tsunami means

  • earthquake
  • floods
  • earthquake under the sea
  • eruption of volcano in a sea

  • 9. 
    The waves produced on the earth’s surface is called

  • seismic wave
  • longitudinal wave
  • Micro wave
  • Radio wave

  • 10. 
    Amber is a

  • metal
  • rubber
  • resin
  • sugar
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