3
AssignmentMultiple Choice

Unit Test

Question 3 • EA ACADEMY PHYSICAL SCIENCE SPRING

If a car used 250,000 W of power to complete a race in 12 s, how much work did the car do?

Answer
A
2080 J
B
20,800 J
C
300,000 J
D
3,000,000 J

Explanation

Power is work divided by time, so work = power × time. Calculate 250,000 W × 12 s = 3,000,000 J. Therefore, the car did 3,000,000 J of work, choice D.

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