9
QuizMultiple Choice

Energy Transformations — Quiz

Question 9 • Physics

Which best describes how energy changes form in a car’s engine?

Answer
A
Multiple transformations occur because the chemical energy of the fuel must be replenished to keep the car running.
B
A single transformation occurs because the chemical energy of the fuel is changed to the mechanical energy of the car.
C
A single transformation occurs because the mechanical energy of the car originates from one spark.
D
Multiple transformations occur because the chemical energy of the fuel is changed to several forms of energy.

Explanation

A car engine changes the fuel’s chemical energy into several forms. Combustion releases thermal energy, which the engine uses to produce mechanical energy that moves the car; some energy also becomes sound and unwanted heat. Because the energy changes into multiple forms, choice D is the best description.

AI-written and checked against the verified answer.

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