About 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.
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.
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.
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.
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.
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.
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Other chapters within the STAAR Science - Grade 8: Test Prep & Practice course
- STAAR Science - Grade 8: Matter & Energy
- STAAR Science - Grade 8: The Periodic Table
- STAAR Science - Grade 8: Chemical Formulas & Equations
- STAAR Science - Grade 8: Force & Motion
- STAAR Science - Grade 8: Earth & Space
- STAAR Science - Grade 8: Exploration of the Universe
- STAAR Science - Grade 8: Earth's Structure & Topography
- STAAR Science - Grade 8: Atmospheric Interactions
- STAAR Science - Grade 8: Living Organisms
- STAAR Science - Grade 8: Genetics
- STAAR Science - Grade 8: Ecosystems & the Environment
- STAAR Science - Grade 8: Scientific Processes & Tools
- STAAR Science - Grade 8 Flashcards