Physical Change


 
 
Concept Explanation
 

Physical Change

Properties such as shape, size, color and state of a substance are called its physical properties.

Physical Changes:

Physical changes are the changes in which no new substance is formed. E.g. the formation of ice from water is a physical change. Physical changes are most of the times for a short span of time, better we can say these changes are temporary and can be reserved. Hence physical change can be defined as: A physical change is the one that changes the shape, size, physical state or appearance of substance but not its chemical composition

Characteristics of a physical change:

  • The change is reversible and temporary.
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    Sample Questions
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    Question : 1

    Which of the following are correct :

    (a) When no new substance is formed after the change, it is called physical change.

    (b) Physical changes are usually reversible.

    Right Option : C
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    Question : 2

    Which of the following are the examples of physical change ?

    Right Option : A
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    Explanation
    Question : 3

    Which of the following are correct ?

    (a)  A physical change is the one that changes the shape, size, physical state or appearance of substance but not its chemical composition

    (b) In a physical change no new substance is formed .

    (c) Formation of dew, Drying if wet clothes, Breaking of glass, Bending of glass tube are examples of physical change:

    Right Option : D
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    Explanation
     
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