Introduction to Physics

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Questions and Answers

What is the origin of the word 'physics'?

  • Borrowing from ancient Egyptians
  • Sumerian term
  • Latin physica
  • Greek phusikḗ (correct)

Which branch of physics inspired the development of calculus?

  • Mechanics (correct)
  • Nuclear physics
  • Electromagnetism
  • Solid-state physics

What led to the development of industrialization?

  • Advances in solid-state physics
  • Advances in nuclear physics
  • Advances in thermodynamics (correct)
  • Advances in electromagnetism

Which area of physics led directly to the development of television and computers?

<p>Electromagnetism (A)</p> Signup and view all the answers

What is one of the oldest natural sciences mentioned in the text?

<p>Astronomy (C)</p> Signup and view all the answers

What does the viscosity of a fluid measure?

<p>The fluid's resistance to deformation at a given rate (B)</p> Signup and view all the answers

How are the SI units of viscosity defined?

<p>Pascal-seconds (C)</p> Signup and view all the answers

What does viscosity quantify in a fluid?

<p>Internal frictional force between adjacent layers of fluid in relative motion (D)</p> Signup and view all the answers

In general, what does the viscosity of a Newtonian fluid depend on?

<p>State of matter (D)</p> Signup and view all the answers

Under what condition is zero viscosity observed in fluids?

<p>Very low temperatures in superfluids (D)</p> Signup and view all the answers

What is the scientific definition of viscosity?

<p>The force multiplied by a time divided by an area (B)</p> Signup and view all the answers

What is the SI unit for viscosity?

<p>Newton-seconds per square metre (C)</p> Signup and view all the answers

Under what conditions does the viscosity of a Newtonian fluid vary significantly?

<p>It does not vary significantly under any condition (A)</p> Signup and view all the answers

What property causes the need for a force to sustain the flow of a viscous fluid through a tube?

<p>Friction between layers of the fluid (B)</p> Signup and view all the answers

When is zero viscosity observed in fluids?

<p>At very low temperatures in superfluids (C)</p> Signup and view all the answers

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