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प्रश्न
What kind of energy is possessed in a situation when?
A stone lying on the top of roof.
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उत्तर
Potential Energy.
संबंधित प्रश्न
Differentiate between the potential energy (U) and the kinetic energy (K).
Select the renewable and non-renewable sources of energy from the following:
Oil
What is the main source of energy for earth?
Name the energy changes for each of the following cases:
dynamo
A pebble is thrown up. It goes to a height and then comes back on the ground. State the different changes in form of energy during its motion.
A ball of mass 0.5 kg slows down from a speed of 5m/s-1 to that of 3m/s-1. Calculate the change in kinetic energy of the ball.
Obtain an expression for the potential energy of a body of mass m at a height h above the ground.
State the energy changes which take place when:
A stone projected vertically upwards, returns back to the thrower.
Give one example when:
Mechanical energy changes to electric energy.
Give one example when:
Kinetic energy to potential energy.
