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प्रश्न
Change is the law of nature and occurs in our everyday life, at all times and in all places.
Differentiate between the following change with a suitable example.
Periodic and non-periodic change
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उत्तर
| Periodic change | Non-periodic change |
| (i) Changes which occur periodically (occur again and again) at regular intervals of time. | (i) Changes which do not occur periodically (do not repeat) at regular intervals of time. |
| (ii) Examples of a periodic change: Change of seasons, the occurrence of day and night, movement of a clock pendulum. |
(ii) Examples of a non-periodic change: Change of weather, growth of a plant, cyclones, earth-quakes, rusting of iron, thunder, and lightning. |
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संबंधित प्रश्न
Fill in the blank.
Growing of a seedling into a plant is _______ change.
Write true or false
Melting of ice is a physical change.
True or false
Change of seasons is a non-periodic change.
What is a chemical change ? Give two examples of chemical changes.
Fill in the blank with the appropriate word of the statement given below:
Germination of seeds is considered a __________ change.
Fill in the blanks with the appropriate words of the statement given below:
Heating a piece of iron is considered a __________ change while heating a piece of coal [carbon] is considered a ___________ change.
Fill in the blank with the correct word of the statement given below:
Sublimation involves a __________ change.
Name the following.
The gaseous product of the chemical change which takes place during respiration in living organisms.
When a woolen yarn is knitted to get a sweater, the change can be classified as ____________.
Water is known as a universal solvent. Why?
