AP1: Fluid Continuity & Bernoulli's Principle

According to equation of continuity, A₁V₁ = A₂V₂ = constant. The constant is equal to:

• Flow rate, Q

• Volume of fluid, V

• Mass of fluid, m

• Density of fluid, ρ

According to Bernoulli's Principle, when the wind speed is high, wind pressure is ________

• High

• Low

• Not enough information

• None of the above

A fluid is forced through a pipe of changing cross section as shown. In which section will the water move the slowest?

• I

• II

• III

• IV

• The water will move at the same speed

A fluid is forced through a pipe of changing cross section as shown. In which section will the water have th highest pressure?

• I

• II

• III

• IV

• The water pressure will remain the same

A piece of an ideal fluid is marked as it moves a horizontal streamline trough a pipe, as shown in the figure. Region II (2) is half of the diameter of Region I (1).

Which of the following is true?

• P₁ > P₂

• P₁ < P₂

• P₁ = P₂

A piece of an ideal fluid is marked as it moves a horizontal streamline trough a pipe, as shown in the figure. Region II (2) is half of the diameter of Region I (1).

Which of the following is true?

• v₁ > v₂

• v₁ < v₂

• v₁ = v₂

A piece of an ideal fluid is marked as it moves a horizontal streamline trough a pipe, as shown in the figure. Region II (2) is half of the diameter of Region I (1).

Which of the following is true?

• Q₁ > Q₂

• Q₁ < Q₂

• Q₁ = Q₂

The pipe changes height from y₁ = 2 m to y₂ = 3 m. Area₁ = Area₂.

Which of the following is true?

• P₁ > P₂

• P₁ < P₂

• P₁ = P₂

The pipe changes height from y₁ = 2 m to y₂ = 3 m. Area₁ = Area₂.

Which of the following is true?

• v₁ > v₂

• v₁ < v₂

• v₁ = v₂

The pipe changes height from y₁ = 2 m to y₂ = 3 m. Area₁ = Area₂.

Which of the following is true?

• Q₁ > Q₂

• Q₁ < Q₂

• Q₁ = Q₂