CAPE Physics Unit 1 · 2008 (Rest of Region) · Paper 1 · Question Q18

A mass of 250\text{ g} hanging at the end of a spring of spring constant, k, makes 21 oscillations in 11 seconds. What would be the period if the system were taken to a planet where gravity was \frac{1}{4} of that on Earth?

1. (A)\frac{1}{4}\text{ s}
2. (B)\frac{1}{4} \left(\frac{21}{11}\right)\text{ s}
3. (C)\frac{11}{21}\text{ s}
4. (D)4 \left(\frac{11}{21}\right)\text{ s}