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प्रश्न
Complete the following sentences:
Kilowatt is the unit of ....... and kWh is the unit of
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उत्तर
Kilowatt is the unit of power and kWh is the unit of energy
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संबंधित प्रश्न
State two conditions when no work is done by a force.
When is work said to be done by a force?
MULTIPLE CHOICE TYPE
In an electric cell which in use, the change in energy is from:
Explain by an example that a body may possess energy even when it is not in motion.
Complete the following sentences:
The SI unit of work is ....... and of power is .......
If an electric bulb of 100 watt is lighted for 2 hours, how much electric energy would be consumed?
List any six forms of energy and write a short note on each of them.
A man climbs a slope and another walks same distance on level road. Which of the two expends more energy and why?
Mention whether work is done or not in the following activity.
| S. No | Activity | Work done or not done |
| 1. | Pushing the door | |
| 2. | Holding a doll | |
| 3. | Sitting in a bus | |
| 4. | Pushing a wall | |
| 5. | Digging soil |
