What kind of energy is possessed in the following situations?
(a) A cocked up spring of an air gun.
(b) A stone lying on the top of a roof.
(c) A fish swimming in water.
(d) A horse running along a level road.
(a) A cocked up spring of an air gun.
The spring will possess the potential energy. Potential energy is the stored energy in any object or system by virtue of its position
(b) A stone lying on the top of a roof.
The stone here possesses the potential energy due to its position with respect to the ground level.
(c) A fish swimming in water.
A fish swimming in water possesses kinetic energy due to its motion inside the water.
(d) A horse running along a level road.
The movement of the horse on the level road will carry velocity with it, and the horse possesses kinetic energy.