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प्रश्न
Potential energy and heat energy are the two forms of mechanical energy.
विकल्प
True
False
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उत्तर
Potential energy and heat energy are the two forms of mechanical energy- False.
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संबंधित प्रश्न
State two factors on which the potential energy of a body at a certain height above the ground depends.
A bucket full of water is on the first floor of your house and another identical bucket with the same quantity of water is kept on the second floor. Which of the two has greater potential energy?
A body of mass m is moved from ground to a height h. If force of gravity on mass of 1 kg is g newton, find the work done in lifting the body.
Define the term potential energy of a body.
Two bodies A and B of equal masses are kept at heights of h and 2h respectively. What will be the ratio of their potential energies?
Is potential energy a vector or a scalar quantity?
State whether the following statement is true or false :
The potential energy of a body of mass 1 kg kept at a height of 1 m is 1 J.
A weightlifter is lifting weights of mass 200 kg up to a height of 2 metres. If g = 9.8 m s−2, calculate :
work done by the weightlifter
A boy weighing 50 kg climbs up a vertical height of 100 m. Calculate the amount of work done by him. How much potential energy does he gain? (g = 9.8 m/s2)
On what factors does the gravitational potential energy of a body depend?
