During an experiment, a ball is rolled along a curved track that is about half a metre long. Which measuring device should be used to measure the length accurately?
- Ametre rule
- Bmicrometer
- Cstop-watch
- Dtape measure
Physics 5054 · O Level · Physical quantities and measurement techniques
During an experiment, a ball is rolled along a curved track that is about half a metre long. Which measuring device should be used to measure the length accurately?