The reading on a spring balance with a container and ten identical marbles is 4.5 N. Seven marbles are removed and the reading becomes 1.7 N. What is the weight of one marble?
0.2 N0.2\text{ N}0.2 N
0.4 N0.4\text{ N}0.4 N
0.5 N0.5\text{ N}0.5 N
0.7 N0.7\text{ N}0.7 N
209 exam-style questions on CIE IGCSE Physics Mass and weight, covering Mass and weight. Each one has a worked solution and a mark scheme showing where the marks go.