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प्रश्न
Fill in the blank
The ability to do work is called ______
उत्तर
The ability to do work is called energy
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संबंधित प्रश्न
Write true or false of the following statement.
Potential energy changes into kinetic energy when it is put to use
Write true or false of the following statement.
One form of energy cannot be converted into another form.
Select the correct alternatives
The correct statement is
State the unit of energy and define it.
Name two units of power bigger than watt.
A cell converts one form of energy into another form. Name the two forms.
If the energy of a ball falling from a height of 10 metres is reduced by 40%, how high will it rebound?
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?
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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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)
