Advertisements
Advertisements
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
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. |
APPEARS IN
संबंधित प्रश्न
Fill in the blank.
An earthquake is a .................. change.
What are reversible and irreversible changes ? Give one example for each.
State whether the following is physical or chemical change.
Digestion of food —
Classify the following changes as physical or chemical.
Which of the following are physical changes and which are chemical changes ?
Rusting of iron
What will you take into account while identifying the following?
A chemical change in a substance.
State which of the following 1 to 5 pertain to – A: Physical Change B: Chemical change :
- Sublimation.
- Fermentation.
- Liquefaction or condensation.
- Magnetization.
- Respiration.
What type of change is colouring of a paper?
Water is the universal solvent. Why?
State whether the following statements are true or false:
Stretching of rubber bands is not a physical change.
