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प्रश्न
Give one example each of a body possessing : (i) kinetic energy, and (ii) potential energy.
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उत्तर
(i) Kinetic energy - A car moving with some speed on a road possesses kinetic energy.
(ii) Potential energy- A stretched rubber band possesses potential energy due to the change in its configuration.
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संबंधित प्रश्न
Gravitational potential energy U = mass × force of gravity on unit mass × ..........
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.
A spring is kept compressed by a small trolley of mass 0.5 kg lying on a smooth horizontal surface as shown in the adjacent fig. When the trolley is released, it is found to move at a speed v = 2 m s-1. What potential energy did the spring possess when compressed?
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 :
potential energy acquired by the weights.
On what factors does the gravitational potential energy of a body depend?
Explain by an example what is meant by potential energy. Write down the expression for gravitational potential energy of a body of mass m placed at a height h above the surface of the earth.
The potential energy of your body is least when you are ______.
Which of the following is the example potential energy?
The potential energy is
