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What is the SI unit of viscosity?

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Question: What is the SI unit of viscosity?

Options:

  1. Pascal-second
  2. Newton-second
  3. Kilogram-meter per second
  4. Joule-second

Correct Answer: Pascal-second

Solution: 

The SI unit of viscosity is Pascal-second (Pa·s), which is equivalent to Newton-second per square meter.

What is the SI unit of viscosity?

Practice Questions

Q1
What is the SI unit of viscosity?
  1. Pascal-second
  2. Newton-second
  3. Kilogram-meter per second
  4. Joule-second

Questions & Step-by-Step Solutions

What is the SI unit of viscosity?
  • Step 1: Understand what viscosity is. Viscosity is a measure of a fluid's resistance to flow.
  • Step 2: Know that the SI unit system is a standard way to measure different physical quantities.
  • Step 3: Learn that the SI unit for viscosity is called Pascal-second (Pa·s).
  • Step 4: Recognize that Pascal (Pa) is a unit of pressure, and second (s) is a unit of time.
  • Step 5: Understand that Pascal-second can also be expressed as Newton-second per square meter (N·s/m²).
  • Step 6: Conclude that both Pascal-second and Newton-second per square meter are equivalent ways to express viscosity.
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