---
title: "What is the defining characteristic of the restoring force that causes an object to undergo Simple Harmonic Motion (SHM)?"
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date_modified: "2025-12-05T22:07:13+00:00"
---

# What is the defining characteristic of the restoring force that causes an object to undergo Simple Harmonic Motion (SHM)?

What is the defining characteristic of the restoring force that causes an object to undergo Simple Harmonic Motion (SHM)?

- **A.** It is proportional to \( x^{2} \), the square of the object’s displacement.
- **B.** It is proportional to the object’s velocity \( v \).
- **C.** It is always constant in magnitude, but its direction changes.
- **D.** It is directly proportional to the object’s displacement \( x \) from its equilibrium position.

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