Fluid Dynamics and Continuity Principles

Fluid Dynamics and Continuity Principles

Assessment

Interactive Video

Physics

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains fluid flow in a pipe with changing cross-sectional areas. It begins by introducing the problem and defining key terms like discharge and flow rate. The tutorial then demonstrates how to calculate flow rate using the area and velocity of the fluid. The principle of continuity is applied to determine the new velocity when the pipe's diameter changes. The video concludes by summarizing the continuity principle, emphasizing that a decrease in area results in an increase in velocity to maintain a constant flow rate.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial cross-sectional area of the pipe?

0.01 meter squared

0.001 meter squared

1 meter squared

0.1 meter squared

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is fluid flow through a system defined?

Mass per unit time

Volume per unit time

Temperature per unit time

Pressure per unit time

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for discharge in terms of area and velocity?

Q = V / A

Q = A * V

Q = A / V

Q = A + V

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the discharge at point 1?

1 meter cubed per second

0.1 meters cubed per second

0.01 meters cubed per second

0.001 meters cubed per second

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What principle ensures that the flow rate is constant throughout the system?

Pascal's principle

Archimedes' principle

Continuity principle

Bernoulli's principle

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you calculate the velocity at point 2 using continuity?

Multiply Q1 by A1

Divide Q1 by A1

Multiply Q1 by A2

Divide Q1 by A2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the velocity when the cross-sectional area of the pipe is reduced?

Velocity increases

Velocity decreases

Velocity becomes zero

Velocity remains the same

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