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प्रश्न
Fill in the blank
The S.I.unit of energy is ______
उत्तर
The S.I.unit of energy is joule
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संबंधित प्रश्न
Fill in the blank
Cooking gas converts _______ energy into heat energy.
State the unit of energy and define it.
What is potential energy ? State its unit.
Match the following:
| Column A | Column B |
| (a) Needle | (1) class II lever |
| (b) Doorknob | (2) inclined plane |
| (c) Ramp | (3) Class I lever |
| (d) Lemon crusher | (4) Wheel and axle |
| (e) Seesaw | (5) wedge |
Tick the most appropriate answer.
The force applied on a machine to do work is called the
Name the quantity whose unit is :
(a) kilowatt
(b) kilowatt-hour
Derive the relation between commercial unit of energy (kWh) and SI unit of energy (joule).
A certain household consumes 650 units of electricity in a month. How much is this electricity in joules?
We make useful objects from a variety of substances. Another use of substances is that we get energy from some of them.
When we have run a long distance, we feel tired. We have to stop. Why is that?
The work done on an object does not depend upon the
