Question

In a petrol vehicle while in motion, the change in energy is from
(a) kinetic energy to potential energy
(b) chemical energy to kinetic energy
(c) potential energy to kinetic energy
(d) chemical energy to potential energy

April 17, 2024

Answer

(b) chemical energy to kinetic energy

Reason — In a petrol vehicle, the chemical energy stored in the fuel (petrol) is converted into kinetic energy as the vehicle moves. This conversion of chemical energy into kinetic energy occurs through the process of combustion within the engine, where the chemical bonds in the fuel are broken, releasing energy that propels the vehicle forward.

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