10
lesson pretestMultiple Choice

Pretest

Question 10 • Physics I

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

Answer
A
A single transformation occurs because the chemical energy of the fuel is changed to the mechanical energy of the car.
B
Multiple transformations occur because the chemical energy of the fuel must be replenished to keep the car running.
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.