A Level · A2 · multiple choice
A Level extension · Question 3
A Level extension · Original GioPhysics question with a detailed, mark-by-mark answer guide.
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multiple choice1 mark
A body moves with simple harmonic motion of amplitude 2.0 cm and frequency 5.0 Hz. What is the magnitude of its maximum acceleration?
- A
0.63 m s⁻²
- B
3.1 m s⁻²
- C
20 m s⁻²
- D
200 m s⁻²
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Answer overviewCorrect answer: C — 20 m s⁻²
01
1 markAnswer and reasoning
How to approach it
Predict from the governing principle before looking for a matching option. Then reject alternatives by checking direction, units, limiting behaviour or the physical meaning of each statement.
- 1
The correct choice is C: 20 m s⁻²
- 2
B uses f rather than ω = 2πf, which loses a factor of (2π)² ≈ 39. The amplitude must also be converted to metres; leaving it in centimetres gives D.
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