Difficulty: Medium
Average Score: 71%
Practice
When a junked car is compacted, which statement is true?
Correct answer
C
Rationale
When a junked car is compacted, its volume decreases while its mass remains the same. As a result, the car's density increases because density is mass divided by volume. Choice A is incorrect because the mass of the car remains the same. Choice B is incorrect because the mass does not decrease. Choice D is incorrect because the density increases as the volume decreases, not decreases.