Which of the following statements are true about the spring balance and the chemical balance? i. both are used to measure the mass of an object. ii. either of them may be used to measure the weight of an object. iii. the spring balance works on the principle of Hooke's law while the chemical balance works on the principle of moments. iv. a change in gravity does the readings of a spring balance but not that of a chemical balance.
- the spring balance works on the principle of Hooke's law while the chemical balance works on the principle of moments.
- The mass of a body is measured using beam or chemical
- Chemical balance is a delicate instrument which is used to weigh small amounts of substances
- The weight of a body can be measured using a spring balance
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