Question
Can you say if the following objects have energy ? If they do, identify whether the energy is kinetic, potential or combination of the two:
(i) A ceiling fan which has been switched off.
(ii) A man climbing a hill.
(iii) A flying bird.
(iv) Water in the reservoir of a dam.
(v) A spring expanded beyond its normal shape.
(vi) A rubber band lying on a table.
(vii) A stretched rubber band lying on the ground.
Solution
The enrgy possesed by the object are as given below:
(i) Potential energy
(ii) both kinetic and potential energy
(iii) both kinetic and potential energy
(iv) potential energy
(v) potential energy
(vi) potential energy and
(vii) potential energy
