The weight of an object is to be found using a simple two-pan balance scale.
The object is put in the left-hand pan and various standard weights are put in the right-hand pan. These are the results:
| Weights in the right-hand pan | Effect |
|---|---|
| 0.5 N,0.2 N,0.05 N,0.02 N0.5\text{ N}, 0.2\text{ N}, 0.05\text{ N}, 0.02\text{ N}0.5 N,0.2 N,0.05 N,0.02 N | Balance tips down slightly on the left-hand side |
| 0.5 N,0.2 N,0.1 N,0.03 N0.5\text{ N}, 0.2\text{ N}, 0.1\text{ N}, 0.03\text{ N}0.5 N,0.2 N,0.1 N,0.03 N | Balance tips down slightly on the right-hand side |
What is the best estimate of the weight of the object?
0.77 N0.77\text{ N}0.77 N
0.80 N0.80\text{ N}0.80 N
0.83 N0.83\text{ N}0.83 N
1.60 N1.60\text{ N}1.60 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.