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प्रश्न
1 J = ______ calorie.
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उत्तर
1 J = 0.24 calories.
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संबंधित प्रश्न
Power spent by a body depends on the time for which it does work.
Define the term energy.
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In which of the following case the work done by a force will be maximum : when the angle between the direction of force and direction of motion is 0° or 90°?
A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. If the value of g be 10 m/s2, the work done by the girl against the gravitational force will be :
Write an expression for the work done against gravity.
State the energy changes which take place when A stone dropped from the top of a cliff reaches the ground after some time.
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
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