Pascal is the SI unit of _______, which is defined as a force of 1 N applied uniformly over an area of 1 m2.

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  1. pressure
  2. mass density
  3. power
  4. energy

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Option 1 : pressure
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The correct answer is pressure

Key Points

  • Pressure is the force applied per unit area.
  • The SI unit of pressure is the Pascal (Pa).
  • 1 Pascal is defined as a force of 1 Newton applied uniformly over an area of 1 square meter (1 N/m2).

Additional Information

  • Pressure can also be measured in other units such as atmospheres (atm), bars, and torr.
  • It is a scalar quantity, which means it has magnitude but no direction.
  • Common applications of pressure include weather forecasting, tire pressure, and fluid dynamics.
  • In engineering, pressure measurements are critical for the design and operation of pressure vessels, pipelines, and hydraulic systems.
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