Which of the following statements about a spring balance and/or a chemical balance is not...
PHYSICS
WAEC 2005
Which of the following statements about a spring balance and/or a chemical balance is not correct?
- A. the chemical balance operates on the principle of moments
- B. the sprin balance operates on Hooke's law
- C. either may be used to measure the weight of a substance
- D. the reading of a spring balance changes over the surface of the earth, while that of the chemical balance remaind constant
Correct Answer: C. either may be used to measure the weight of a substance
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