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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?

Electromagnetism Signup and view all the answers

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

Astronomy Signup and view all the answers

What does the viscosity of a fluid measure?

The fluid's resistance to deformation at a given rate Signup and view all the answers

How are the SI units of viscosity defined?

Pascal-seconds Signup and view all the answers

What does viscosity quantify in a fluid?

Internal frictional force between adjacent layers of fluid in relative motion Signup and view all the answers

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

State of matter Signup and view all the answers

Under what condition is zero viscosity observed in fluids?

Very low temperatures in superfluids Signup and view all the answers

What is the scientific definition of viscosity?

The force multiplied by a time divided by an area Signup and view all the answers

What is the SI unit for viscosity?

Newton-seconds per square metre Signup and view all the answers

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

It does not vary significantly under any condition 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?

Friction between layers of the fluid Signup and view all the answers

When is zero viscosity observed in fluids?

At very low temperatures in superfluids Signup and view all the answers