Fluids Notes Day 1

Front

What is the definition of a fluid?

Back

A fluid is a substance that can flow and take the shape of its container. It includes liquids and gases.

Front

What is density in the context of fluids?

Back

Density is the mass per unit volume of a substance, typically expressed in kg/m³ for fluids.

Front

How do you calculate the density of a fluid?

Back

Density (ρ) = Mass (m) / Volume (V).

Front

What is the principle of buoyancy?

Back

The principle of buoyancy states that an object submerged in a fluid experiences an upward force equal to the weight of the fluid displaced by the object.

Front

What is Pascal's principle?

Back

Pascal's principle states that a change in pressure applied to an enclosed fluid is transmitted undiminished to all parts of the fluid.

Front

What is the formula for pressure in a fluid?

Back

Pressure (P) = Force (F) / Area (A).

Front

What is the relationship between pressure and depth in a fluid?

Back

Pressure increases with depth in a fluid due to the weight of the fluid above. The formula is P = ρgh, where ρ is density, g is acceleration due to gravity, and h is depth.

Front

What is the concept of viscosity?

Back

Viscosity is a measure of a fluid's resistance to flow. Higher viscosity means a thicker fluid that flows less easily.

Front

What is laminar flow?

Back

Laminar flow is a smooth, orderly flow of fluid in parallel layers, with minimal disruption between them.

Front

What is turbulent flow?

Back

Turbulent flow is an irregular, chaotic flow of fluid characterized by eddies and vortices.