alleryStart learning →The SI unit of pressure is the pascal. One pascal is equal to which of these?
AOne newton per metre
BOne joule per square metre
COne newton per square metre
DOne newton per cubic metre
Answer & Solution
Correct answer: C. One newton per square metre
1. Pressure is force divided by area.
2. The SI unit of force is the newton and the SI unit of area is the square metre.
3. One pascal is therefore one newton per square metre.
4. A newton per metre is a surface tension, and a newton per cubic metre is a force per volume, so neither is a pressure.
_Source: OpenStax College Physics (CC BY 4.0), Ch 11 "Fluid Statics", section 11.3 Pressure_
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