Name the quantity which can be measured by using the base unit kgm2s-3:
Correct answer: C. Power
- A. Weight
- B. Pressure
- C. Power
- D. Work
Explanation
The following is the solution:As we know that:Power = Work / timeAnd,Work = force × distance F = maSo putting all that together:P = m × a × d / tSubstituting with their units that would make:P = kgm²s-3
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About Measurements
Physical quantities are expressed with SI base and derived units, while measurement limits are described through accuracy, precision, absolute and percentage error, and significant figures. Dimensional analysis checks equations, derives relationships and detects inconsistent units, but it cannot determine numerical constants or distinguish quantities with identical dimensions.
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