Advertisements
Advertisements
प्रश्न
Classify the following as physical or chemical changes :
Breaking of a glass tumbler
पर्याय
Physical change
Chemical change
Advertisements
उत्तर
Breaking of a glass tumbler – Physical change
APPEARS IN
संबंधित प्रश्न
Write short answer.
Give two examples of periodic changes
State whether the following is physical or chemical changes.
water cycle in nature —
Match the columns.
| Column A | Column B |
| 1. a change which cannot be easily reversed | a. man-made change |
| 2 a change that repeats itself at regular intervals | b. chemical chang |
| 3. a change that is made by humans | c. physical change |
| 4. a change in which the original substance cannot be obtained | d. periodic change |
| 5. a change where no new substance is formed | e. irreversible change |
| f . slow change |
Name two reversible changes.
Which of the following are physical changes ?
- melting of iron metal
- rusting of iron metal
- bending of an iron rod
- drawing a wire of iron metal
Differentiate between a physical change and a chemical change with reference to – Energy change taking place during the respective change.
Give a reason why
Change of seasons is a periodic change while the change of weather is a non-periodic change.
Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates a –
Grinding of wheat grain changes its size. It is a ____________ change.
Give two examples for the following case:
Physical changes which are reversible
