A-LevelPhysicsDeformation of solids9702/12 · Feb/Mar 2024 · Q211 Mark
A spring is fixed at one end and extended by applying force F to the other end. The spring has extension x and elastic potential energy Ep. The spring constant is k. The spring obeys Hooke's law. Which relationship is correct for this spring?
AEp ∝ F
BEp ∝ x
CEp ∝ k
DEp ∝ x²
✓ Correct answer
D: Ep ∝ x²
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