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Ch 11: Praxis Middle School Science: Work, Energy & Power

About This Chapter

If you're looking for a convenient way to study for the Praxis Middle School Science exam, check out this collection of lessons. You'll find videos and quizzes on the work-energy theorem, mechanical energy, pulleys and more.

Praxis Middle School Science: Work, Energy & Power - Chapter Summary

Get ready for mechanics questions on the Praxis Middle School Science exam with this chapter's fun texts and video lessons. They can help you review the changes in energy that result when force is applied to an object and practice solving equations for power:

  • Work done by a variable force
  • Types of energy
  • The work-energy theorem
  • Pulley mechanics
  • Conservation of mechanical energy
  • The equation for power

Study the work, energy and power concepts anywhere you take your mobile device with these self-paced video lessons and transcripts. You can also complete multiple-choice quizzes and a chapter test to check your understanding of these topics and keep your study goals on track.

Praxis Middle School Science: Work, Energy & Power Objectives

The Praxis Middle School Science exam is used by some states to measure the educational qualifications of applicants for a teaching license in this subject area.

Around 22 of the exam's 90 multiple-choice questions assess your familiarity with physical science concepts. Lessons in this chapter are designed to prepare you for the portion of test questions focusing on work, energy and power as they relate to the study of mechanics. You might also be asked to apply these principles when answering one of the exam's three constructed response questions.

6 Lessons in Chapter 11: Praxis Middle School Science: Work, Energy & Power
Test your knowledge with a 30-question chapter practice test
Overview of Work & Work by Variable Force

1. Overview of Work & Work by Variable Force

After completing this lesson, you will be able to explain what work is, and how to calculate work using the equation, and a force-distance graph. A short quiz will follow.

Energy: Definition & Types

2. Energy: Definition & Types

After completing this lesson, you will be able to explain what energy is, list various types of energy, and identify which type or types of energy are present in a situation.

Work-Energy Theorem: Definition and Application

3. Work-Energy Theorem: Definition and Application

Work and energy are closely related in physics. In this lesson, you'll learn what that relationship is as well as how we can apply it to various situations.

Pulleys: Basic Mechanics

4. Pulleys: Basic Mechanics

Like other simple machines, pulleys can help us lift and move heavy loads with less effort. In this video lesson, you'll learn how pulleys do this as well as how this is possible while still obeying the law of conservation of energy.

Conservation of Mechanical Energy

5. Conservation of Mechanical Energy

Energy comes in many forms and for any system can never be created or destroyed. This holds true for mechanical energy, which also obeys this law of conservation of energy. In this video lesson, you'll explore how mechanical energy is converted or transferred between forms and objects.

Power: Definition and Mathematics

6. Power: Definition and Mathematics

Work involves moving an object with a force, but power tells us how quickly that work is done. In this lesson, you will learn about how power depends on both work and time as well as see examples of how to calculate power.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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Other Chapters

Other chapters within the Praxis Middle School Science (5440): Practice & Study Guide course

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