Exam-style question
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Define simple harmonic motion and describe the role of displacement and acceleration in this type of motion.
Model answer
What a good answer should say
- Simple harmonic motion is defined as the motion of an object where the restoring force is directly proportional to the displacement from the equilibrium position and acts in the opposite direction.
- In this motion, the acceleration is also directly proportional to the displacement, indicating that the object accelerates towards the equilibrium position.
Explanation
Why this works
This answer clearly defines simple harmonic motion and explains the relationship between displacement and acceleration, demonstrating a solid grasp of the underlying principles. It assesses the student's ability to articulate key characteristics of SHM.
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