About This Chapter
Who's it for?
This Work, Energy and Power in Physics unit of our High School Physics Homeschool course will benefit any student who is trying to learn about the characteristics of work and the role of energy in nature. There is no faster or easier way to learn about work, energy and power. Among those who would benefit are:
- Students who require an efficient, self-paced course of study to learn about basic mechanics, energy relationships and use of the work-energy theorem.
- Homeschool parents looking to spend less time preparing lessons and more time teaching.
- Homeschool parents who need a science curriculum that appeals to multiple learning types (visual or auditory).
- Gifted students and students with learning differences.
How it works:
- Students watch a short, fun video lesson that covers a specific unit topic.
- Students and parents can refer to the video transcripts to reinforce learning.
- Short quizzes and the Work, Energy and Power in Physics unit exam confirm understanding or identify any topics that require review.
Work, Energy and Power in Physics Unit Objectives:
- Explore the characteristics of work.
- Learn to apply the work-energy theorem.
- Explain the relationship between potential and kinetic energy.
- Identify examples of mechanical energy in nature.
- Explain the mechanics of pulleys.
- Define power and discuss the mathematics involved.
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. What is Energy? - Definition and Significance in Nature
This lesson describes the nature of energy and how it is transferred from one source into another. Additionally, it will describe the significance of energy in natural systems.
4. Kinetic Energy to Potential Energy: Relationship in Different Energy Types
This video defines and describes kinetic and potential energy. You'll learn how different types of energy can be classified as potential and kinetic. You'll also find out how kinetic and potential energy are transformed.
5. 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.
6. What is Mechanical Energy? - Definition & Examples
In physics, energy is how work gets done. This video describes one important type of energy, mechanical energy, and provides examples of both kinetic and potential mechanical energy.
7. 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.
8. 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.
9. 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 High School Physics: Homeschool Curriculum course
- Introduction to High School Physics: Homeschool Curriculum
- Vectors in Physics: Homeschool Curriculum
- Kinematics in Physics: Homeschool Curriculum
- Newton's Laws in Physics: Homeschool Curriculum
- Linear Momentum in Physics: Homeschool Curriculum
- Rotational Motion in Physics: Homeschool Curriculum
- Circular Motion & Gravitation in Physics: Homeschool Curriculum
- Oscillations in Physics: Homeschool Curriculum
- Electrical Forces and Fields in Physics: Homeschool Curriculum
- Potential & Capacitance in Physics: Homeschool Curriculum
- Direct Current Circuits in Physics: Homeschool Curriculum
- Magnetism in Physics: Homeschool Curriculum
- Waves, Sound & Light - High School Physics: Homeschool Curriculum
- Atomic and Nuclear Physics - High School: Homeschool Curriculum
- Fluid Mechanics in Physics: Homeschool Curriculum
- Thermal Physics & Thermodynamics: Homeschool Curriculum
- Relativity & Quantum Theory: Homeschool Curriculum
- High School Physics - The Universe: Homeschool Curriculum
- Motion - Physics Lab Experiments: Homeschool Curriculum
- Matter & Light - Physics Lab Experiments: Homeschool Curriculum
- Electricity - Physics Lab Experiments: Homeschool Curriculum