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प्रश्न
Fill in the blank
The ability to do work is called ______
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उत्तर
The ability to do work is called energy
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संबंधित प्रश्न
Write true or false of the following statement.
A gum bottle lying on a table has no energy.
Write true or false of the following statement.
One form of energy cannot be converted into another form.
Fill in the blank
Cooking gas converts _______ energy into heat energy.
Select the correct alternatives
The correct statement is
What do you mean by conservation of mechanical energy? State the condition when does it hold.
Answer the following in a word or two or in a sentence.
Write the formula for calculating the efficiency of a machine.
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?
Can you tell?
When can we say that displacement has taken place?
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)
