The base units of Young's Modulus are:
Correct answer: A. kg m-1 s-2
- A. kg m-1 s-2
- B. kg m-2 s-2
- C. kg m-3 s-2
- D. kg ms-3
Explanation
The Young modulus is basically the stress over strain where stress is force/area and the strain has no units. Simplifying the units of Force, N would give us kg ms-2. Dividing it by m2 of the area would give us kg s-2m-1 so, the answer is A.
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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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