The SI unit of pressure is.
Correct answer: A. Pascal
- A. Pascal
- B. mmHg
- C. torr
- D. atm
Explanation
The Pascal (Pa) is the SI unit of pressure, defined as one newton per square meter (N/m²). It is a measure of the force applied per unit area.
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About Physical Quantities and Units
Physical quantities combine a numerical value with a unit, and are expressed using SI base units or derived units such as newtons, joules and pascals. The topic covers prefixes, unit conversion, dimensional analysis, significant figures and measurement uncertainty, while distinguishing scalar quantities from vectors where direction matters.
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