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Ch 5: STAAR Science - Grade 8: Work & Energy

About This Chapter

The STAAR Grade 8 Science exam will include questions about work and energy. You can help your students prepare for this section of the exam with the lessons and quizzes in this chapter.

STAAR Science - Grade 8: Work & Energy - Chapter Summary

Your students can use this chapter to review concepts related to work and energy as they get ready for the STAAR Grade 8 Science exam. We've designed these video lessons to provide information about:

  • Characteristics of work
  • How work is done by a variable force
  • The work-energy theorem and energy transformation
  • Mechanical energy

These short, engaging video lessons make it easy for students to understand the connections between work and energy. We also provide transcripts of each lesson for additional review of this material. Additionally, our science instructors are available to answer any questions your students have about this chapter.

5 Lessons in Chapter 5: STAAR Science - Grade 8: Work & Energy
Test your knowledge with a 30-question chapter practice test
Work: Definition, Characteristics, and Examples

1. Work: Definition, Characteristics, and Examples

Pushing a wall all day may feel like work, but unless you get that wall moving you're not doing any work according to the rules of physics. In this video lesson, you'll learn how work is defined as well as how to calculate the amount of work done on an object.

Work Done by a Variable Force

2. Work Done by a Variable Force

Doing work on an object is a simple concept: we apply a certain force over a certain distance. But in real life, that force is rarely constant. Therefore, we need to understand variable forces and be able to calculate them accurately.

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.

Energy Transformation: Definition, Types & Examples

4. Energy Transformation: Definition, Types & Examples

In this lesson, you will learn about the different kinds of energy and how these types of energy can be transformed from one form to another. You will also learn about some uses of these energy transformations in everyday life.

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.

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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