Ch 22: Praxis General Science: Fluid Mechanics

About This Chapter

Refresh your knowledge of fluid mechanics as you prepare for the Praxis General Science assessment. You can review short video lessons, then test what you've learned by taking quizzes and a chapter exam.

Praxis General Science: Fluid Mechanics - Chapter Summary

Simplify the process of studying for the Praxis General Science assessment with the help of the expert instruction in this chapter. After reviewing lessons on fluid mechanics, you will be ready for the following on the exam:

  • Defining and identifying characteristics of fluids in physics
  • Explaining the meaning, equation and calculations of hydrostatic pressure
  • Calculating force and density using Archimedes' principle
  • Describing fluid mass, flow rate and the continuity equation
  • Sharing your knowledge of Bernoulli's principle and equation

Watch the video lessons in any order that suits your studying habits by scrolling through the list found on the right-hand sidebar. If you want to review specific portions of the videos without rewatching them entirely, use timelines with video tags that allow you to jump to key topics within the lessons.

6 Lessons in Chapter 22: Praxis General Science: Fluid Mechanics
Test your knowledge with a 30-question chapter practice test
Fluids in Physics: Definition and Characteristics

1. Fluids in Physics: Definition and Characteristics

Fluids really know how to move! As flowing materials, fluids have some unique properties that help us understand and describe them. In this lesson you'll explore what fluids are and how they are defined in the world of physics.

Hydrostatic Pressure: Definition, Equation, and Calculations

2. Hydrostatic Pressure: Definition, Equation, and Calculations

This video lesson will introduce you to hydrostatic pressure in a liquid, as well as provide examples for how to calculate the liquid's pressure at a given depth.

Buoyancy: Calculating Force and Density with Archimedes' Principle

3. Buoyancy: Calculating Force and Density with Archimedes' Principle

Knowledge of the buoyant force is important when trying to understand why some objects float while other objects sink. In this lesson you'll learn about this unique force and how we apply it to various situations using Archimedes' Principle.

Fluid Mass, Flow Rate and the Continuity Equation

4. Fluid Mass, Flow Rate and the Continuity Equation

Fluids rarely stay put, so we need to understand how they move. In this lesson, you will learn about how the movement of fluids is influenced by the space it passes through, as well as see examples of how to calculate aspects of this movement.

Bernoulli's Principle: Definition and Examples

5. Bernoulli's Principle: Definition and Examples

Understanding how a moving fluid's speed and pressure change as it flows along is not only important for building airplanes but also for backyard fun. In this video lesson you'll learn about Bernoulli's principle and identify some practical applications of this concept.

Bernoulli's Equation: Formula, Examples & Problems

6. Bernoulli's Equation: Formula, Examples & Problems

Bernoulli's equation describes an important relationship between pressure, speed, and height of an ideal fluid. In this lesson you will learn Bernoulli's equation, as well as see through an example how in an ideal fluid, the dynamics of that fluid remain constant.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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