Advertisements
Advertisements
प्रश्न
Distinguish between the following.
Periodic change and non-periodic change
Advertisements
उत्तर
| Periodic change | Non-periodic change | |
| 1. | Events that repeat themselves after a fixed period of time and whose occurrence can be predicted are called periodic changes. | The events that do not repeat themselves after a regular interval of time are called non-periodic changes. |
| 2. | Example: rotation of earth, revolution of earth, day and night, seasons, etc. | Example: natural disasters like earthquake, cyclones, etc. |
संबंधित प्रश्न
Fill in the blank
Burning of fuel is a _______ change.
State whether the following is physical or chemical changes.
burning of wood -
State whether the following is physical or chemical changes.
passing electric current through a heater rod —
True or false?
During a physical change energy is either given out or absorbed by the system.
True or false?
In a chemical change, rearrangement of molecules and atoms involves some energy changes.
Under which different types can the following changes be classified?
Occurrence of an earthquake.
Under which different types can the following changes be classified?
Stretching of a spring.
Give reason.
A dry handkerchief gets wet at once on dipping in water, but it takes longer for a wet handkerchief to dry.
Picture based question
Observe the picture and list down the changes that are accompanied in the picture.
- ______.
- ______.
- ______.
The difference between initial state and the final state is called change.
