Home
Class 8
PHYSICS
A pencil earser loses tiny pieces of rub...

A pencil earser loses tiny pieces of rubber each time you use it. Why does this happen ?

Text Solution

Verified by Experts

When we use a pencil eraser, friction between the eraser and the paper rubs off some rubber particles from the eraser. Thus, the eraser loses tiny pieces of rubber due to friction.
Promotional Banner

Topper's Solved these Questions

  • FORCE AND PRESSURE.

    LAKHMIR SINGH & MANJIT KAUR|Exercise EXERCISE|120 Videos

  • SOME NATURAL PHENOMEAN

    LAKHMIR SINGH & MANJIT KAUR|Exercise EXERCISE|100 Videos

Similar Questions

Explore conceptually related problems

Sometimes you see a fountain of water rushing out of the leaking joints (or holes) in the pipes of main water supply line in the city. Why does it happen?

When a copper coin is dipped in silver nitrate solution, a glitter appears on the coin after some time. Why does this happen? Write the chemical equation.

LAKHMIR SINGH & MANJIT KAUR-FRICTION-EXERCISE
  1. Can two different bulbs, similar in all respect act as coherent source...

    Text Solution

    |

  2. Why do brake pads of bicycles have to be replaced quite often ?

    Text Solution

    |

  3. A pencil earser loses tiny pieces of rubber each time you use it. Why ...

    Text Solution

    |

  4. What happen when you rub your hands vigorously for a few seconds ? Why...

    Text Solution

    |

  5. Explain how, friction enables us to walk without slipping.

    Text Solution

    |

  6. How does a bicycle stop when its brakes are applied ?

    Text Solution

    |

  7. Explain why, the soles of our shoes wear out gradually .

    Text Solution

    |

  8. Why do tyres of cars wear out gradually ?

    Text Solution

    |

  9. State two advantages and two disadvantages of friction.

    Text Solution

    |

  10. Explain why, sportsmen use shoes with spikes.

    Text Solution

    |

  11. How will you reduce friction between those machine parts which rub ag...

    Text Solution

    |

  12. What is meant by lubriication ? Why is it important ?

    Text Solution

    |

  13. Explain why , wheels are so useful.

    Text Solution

    |

  14. Why are lubricants (oil or greses) applied to rubbing surface of machi...

    Text Solution

    |

  15. Explain, how the use of oil reduces friction between two surface in co...

    Text Solution

    |

  16. Why are cars, aeroplanes and rockets streamlined ?

    Text Solution

    |

  17. The equation (cos p-1) x^(2) + cos p*x + sin p = 0 where x is a varia...

    Text Solution

    |

  18. What are fluids ?

    Text Solution

    |

  19. Name two common fluids.

    Text Solution

    |

  20. Define friction. What are the facrtors affecting friction ? Explain wi...

    Text Solution

    |