Fast and Slow Changes


 
 
Concept Explanation
 

Fast and Slow Changes

Fast and Slow Changes: Actually the changes that take a long duration of time to complete, are called slow changes. Such duration can be in hours, days or even months. On the other hand changes that are completed in short or very short duration of time are called fast changes.

  • Fast changes: Changes that occur quickly is called Fast changes. E.g burning of match stick, burning of fire cracker, Evaporation of petrol, burning of magnesium ribbon. 
  • Slow Changes: Changes that occur slowly is called slow change like growth of nail, rusting of iron.
  • Sample Questions
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    Question : 1

    Which of the following are correct :

    (a) The changes that take a long duration of time to complete, are called slow changes.

    (b) The changes that take a long duration of time to complete, are called Fast changes.

    (c) The changes that take a short duration of time to complete, are called Fast  changes.

    Right Option : C
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    Explanation
    Question : 2

    Which of the following are correct :

    (a) Burning of match stick is a fast change.

    (b) Burning of match stick is a slow change.

    (c) Rusting of iron is a slow change.

    Right Option : C
    View Explanation
    Explanation
     
     
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