About This Chapter
ILTS Biology: Work, Energy and Power - Chapter Summary
Let us help you renew your understanding of topics related to energy transference, and the definitions of work and power before taking the ILTS Biology test. Concepts examined in this chapter include:
- Uncovering the mechanics of pulleys
- Applying the work-energy theorem to everyday use
- Identifying the forms energy can take
- Qualifying work and work by variable forces
- Defining what power is and the mathematics behind it
- Monitoring how to conserve mechanical energy
Our instructors are experts who understand what you should know for success on the ILTS Biology exam. They've created short, entertaining video lessons that you can watch anytime on a computer or mobile device. If you get stuck on a particular topic, use our ask-an-expert message board to send for help.
ILTS Biology: Work, Energy & Power Chapter Objectives
The ILTS Biology exam assesses your understanding of basic biological concepts, and is one of the standards Illinois uses for teacher certification. The exam's 125 multiple-choice questions are divided into six subareas. Questions on the material from the Work, Energy and Power chapter are included in the physical science subarea of the exam.
You can get practice in answering the types of questions that will be on the ILTS exam by answering our own set of multiple-choice practice quiz questions at the end of each lesson. If you answer a question incorrectly, use the answer key's link back to the lesson video to review that portion of the instruction.
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.
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.
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. 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.
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.
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.
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Other chapters within the ILTS Science - Biology (105): Practice and Study Guide course
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