| Date | November 2014 | Marks available | 1 | Reference code | 14N.1.SL.TZ0.2 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 2 | Adapted from | N/A |
Question
The maximum acceleration amax of an oscillator undergoing simple harmonic motion (SHM) has a percentage uncertainty of 12%. The amplitude x0 of the oscillation has a percentage uncertainty of 20%. If \(k = \sqrt {\frac{{{a_{\max }}}}{{{x_0}}}} \) what is the percentage uncertainty in the constant k?
A. 4%
B. 8%
C. 16%
D. 32%
Markscheme
C
Examiners report
It was surprising to see the number of candidates who clearly did not realise that the square root involves halving the percentage uncertainty.
Syllabus sections
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