Exam-style question
Try this first
What does a flat line in a displacement-time graph indicate about the wave?.
- A.The wave is at rest
- B.The wave is traveling at maximum speed
- C.The wave has reached its maximum amplitude
- D.The wave is experiencing a phase shift
Model answer
What a good answer should say
- The wave is at rest
Explanation
Why this works
The evidence shows that a flat line in a displacement-time graph indicates no change in displacement over time, meaning the wave is not oscillating. This implies that the wave is at rest, leading to the conclusion that such a graph segment represents a moment of equilibrium in wave motion.
Common mistake
No common mistake is linked to this question yet.