Question

Which flow diagram BEST explains the energy transformations that occur within an automobile running on diesel?
A) chemical energy → kinetic energy→ heat energy
B) heat energy → kinetic energy → chemical energy
C) kinetic energy → mechanical energy → heat energy
D) mechanical energy → heat energy → chemical energy

Answer 1

Option (A) best explains the energy transformations that occur within any automobile running on petrol or diesel.

(i) Chemical Energy

In the battery of the automobile (bike/car/truck), certain chemical reactions occur, which leads to the release of energy, i.e., chemical energy.

(ii) Kinetic Energy

This chemical energy helps to turn the tyres of the vehicle, which makes it to move front or back (depending on the gear). This movement of the automobile leads to kinetic energy.

(iii) Heat Energy

This movement of the vehicle cause friction between the mechanic parts. This ultimately leads to production of heat energy.

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