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Ch 11: TExES Science 7-12: Work, Energy & Power

About This Chapter

Use these lessons to prepare for questions on the TExES Science 7-12 exam about the types of energy, the work-energy theorem, basic mechanics and power.

TExES Science 7-12: Work, Energy & Power - Chapter Summary

Watch these lessons to improve your understanding of the principles and concepts of work, energy and power. Use this review to prepare for related questions on the Texas Examinations of Educator Standards (TExES) Science 7-12 exam. In them our expert instructors will explain:

  • Work and work by variable force
  • The concept of energy and the different types of energy
  • Applications of the work-energy theorem
  • Basic mechanics and the conservation of mechanical energy
  • The definition and mathematical calculations for power

After these lessons, read the lesson transcripts to reinforce your retention of the information presented in them. Then test your understanding of the lessons by completing the lesson quizzes. Your results from these short assessments will help you discover topics you don't understand and provide you with video tags you may use to return to and study the parts the lessons that explained them.

6 Lessons in Chapter 11: TExES Science 7-12: 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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