The weight of an object is found using a two-pan balance. The object is placed in the left-hand pan, and various weights are placed in the right-hand pan.
The table below shows the results of two different trials:
| Weights in the right-hand pan | Effect |
|---|---|
| 0.2 N,0.2 N,0.05 N,0.02 N0.2\text{ N}, 0.2\text{ N}, 0.05\text{ N}, 0.02\text{ N}0.2 N,0.2 N,0.05 N,0.02 N | Balance tips down slightly on the left-hand side |
| 0.5 N,0.02 N,0.01 N0.5\text{ N}, 0.02\text{ N}, 0.01\text{ N}0.5 N,0.02 N,0.01 N | Balance tips down slightly on the right-hand side |
What is the best estimate of the weight of the object?
0.47 N0.47\text{ N}0.47 N
0.50 N0.50\text{ N}0.50 N
0.53 N0.53\text{ N}0.53 N
1.00 N1.00\text{ N}1.00 N
164 exam-style questions on CIE IGCSE Physics Physical quantities and measurement techniques, covering Physical quantities and measurement techniques. Each one has a worked solution and a mark scheme showing where the marks go.