Exam-style question
Try this first
What does a negative slope on a displacement-time graph indicate?.
- A.The object is moving forward
- B.The object is stationary
- C.The object is moving backward
- D.The object is accelerating
Model answer
What a good answer should say
- The object is moving backward
Explanation
Why this works
A negative slope on a displacement-time graph indicates that the displacement decreases over time. This evidence shows that the object is moving in the opposite direction to the positive reference direction, implying backward motion.
Therefore, the conclusion is that a negative slope signifies that the object is moving backward.
Common mistake
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