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प्रश्न
Observe the picture and put a tick (✓) if work is done and put a cross (x) if work is not done.
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उत्तर
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संबंधित प्रश्न
Write true or false of the following statement.
In an electric fan, electrical energy changes into the mechanical energy.
Fill in the blank
The ability to do work is called ______
Fill in the blank
The S.I.unit of energy is ______
Select the correct alternatives
When a bulb lights up on passing current, the change of energy is
What is energy?
Name the commercial unit of measurement of energy.
Can you tell?
When can we say that displacement has taken place?
We make useful objects from a variety of substances. Another use of substances is that we get energy from some of them.
There is a car. Its tank is full of fuel but it does not move. Why is that?
Which one of the following is not the unit of energy?
A ball is dropped from a height of 10 m. If the energy of the ball reduces by 40% after striking the ground, how much high can the ball bounce back? (g = 10 m s–2)
