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We can cut an apple easity with a sharp ...

We can cut an apple easity with a sharp knife as compared to a blunt knife? Explain why?

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The correct Answer is:
Sharp kinife applies more pressure as compare to blunt knife because of lesser area of contact.

Sharp knife applies more pressure as compare to blunt knife because of lesser area of contact.
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Knowledge Check

  • An element is soft and can be cut easily with a knife. It is very reactive and cannot be kept open in the air. It reacts vigorously with water. This element is most likely to be

    A
    magnesium
    B
    potassium
    C
    phosphorus
    D
    aluminium.
  • A crystalline solid on being cut with a sharp knife gives _______

    A
    an irregular breakage
    B
    a symmetrical breakage
    C
    a clean cleage
    D
    a uniform cleave
  • The metals which can be cut with a knife are _________.

    A
    Sodium and potassium
    B
    Barium and calcium
    C
    Sodium and mercury
    D
    Potassium and calium
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    When the cutting edge of a knife is put against a fast rotating stone to sharpen it, sparks are seen to fly. Explain the reason.

    State two metals which can be cut easily with a knife.