CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1 · Question Q15
Marcia needs to find the mass of her dog but he will not stay on the bathroom scale. So first she weighs herself, getting 47 \pm 1\text{ kg}. Then she stands on the balance holding her dog and the reading becomes 64 \pm 1\text{ kg}. From these reading the percentage error (or uncertainty) in the mass of the dog is
- (A)
1\% - (B)
2\% - (C)
6\% - (D)
12\%
The answer is shown once you've answered.
Practise this question