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प्रश्न
Give two examples of periodic changes.
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उत्तर
Swinging of a pendulum
Rising and setting of the sun.
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संबंधित प्रश्न
Tick the most appropriate answer.
4. Chemical changes involve
- change in shape.
- change in size.
- change in molecular composition.
- none of these
State whether the following is physical or chemical changes.
burning of sugar —
State whether the following is physical or chemical changes.
respiration in living beings —
Distinguish between the following.
Physical change and chemical change
Name the following:
The final product of the physical change involved during the ‘melting of a piece of wax’.
When ice melts to form water, change occurs in its
When a woolen yarn is knitted to get a sweater, the change can be classified as ____________.
Stretching gold coin into a ring is a ______ change.
What type of energy changes is associated when ice melts?
The change of state of a substance from solid to liquid and liquid to gas is ______.
