Exam-style question
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A graph shows the angular displacement of a rotating object over time. Describe the shape of the graph and what it indicates about the angular motion of the object.
Model answer
What a good answer should say
- The graph is a straight line, indicating uniform angular motion.
- This means the object is rotating at a constant angular velocity without any acceleration.
Explanation
Why this works
The evidence of a straight line in the graph shows that the angular displacement increases linearly with time. This indicates that the angular velocity is constant, implying no net torque is acting on the object.
Therefore, we can conclude that the object is in a state of uniform rotation.
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