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प्रश्न
What kind of energy is possessed in a situation when?
Water stored in dams.
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उत्तर
Potential Energy.
संबंधित प्रश्न
Give one example of a body that has potential energy, due to its position at a height.
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
State two characteristic which a source of energy must have.
Name five renewable sources of energy.
Give one disadvantage of using a solar cell.
What is hydro energy?
Identify the type of energy possessed by the body in each of the following:
(a) A coiled spring of the toy car
(b) A hammer which is raised
(c) A stone shot from a catapult
(d) Water stored in the overhead tank
(e) A tadpole moving in water.
Give one example when:
Mechanical energy changes to electric energy.
Two bodies, A and B of equal mass are kept at heights 20 m and 30 m respectively. Calculate the ratio of their potential energies.
A body is thrown vertically upwards. Its velocity keeps on decreasing. What happens to its kinetic energy as its velocity becomes zero?
