About This Chapter
How it works:
- Identify the lessons in the Holt Physical Science Energy and Energy Resources chapter with which you need help.
- Find the corresponding video lessons within this companion course chapter.
- Watch fun videos that cover the energy and energy resources topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- The work-energy theorem
- Mechanical, chemical, thermal, electrical, radiant, nuclear and kinetic energies
- First law of thermodynamics
- Renewable and non-renewable resources
- Fossil fuels
- Solar, wind, hydroelectric and geothermal energies
- Pros and cons of biomass for renewable energy
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1. 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.
2. 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.
3. 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.
4. What is Chemical Energy? - Definition & Examples
This lesson describes chemical energy as a type of potential energy stored in chemicals, such as sugar and gasoline. The lesson discusses how energy is transferred from solar energy to chemical energy by plants and how gasoline is a source of chemical energy used to move cars.
5. What is Electrical Energy? - Definition & Examples
This lesson defines electrical energy and explores its role as a form of potential energy. It also offers an explanation of how it functions within electric fields and provides examples of its applications.
6. What is Radiant Energy? - Definition & Examples
This lesson defines and describes radiant energy in its different forms. The different types of electromagnetic waves created by radiant energy are identified and described as well. This includes X-rays, microwaves, and radio waves, to mention a few.
7. What is Nuclear Energy? - Definition & Examples
You've probably heard of nuclear energy. But what is it? And what is the difference between fusion and fission? This lesson will answer your questions about this exciting form of energy that involves atoms and their nuclei.
8. 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.
9. Chlorophyll: Absorbing Light Energy for Photosynthesis
Plants are clean, green, photosynthesizing machines. Using a specialized pigment called chlorophyll, plants are able to soak up energy from the sun and turn it into food. In this lesson, we'll start to learn why chlorophyll literally gets excited about a sunny day!
10. Electric Motors & Generators: Converting Between Electrical and Mechanical Energy
Both generators and electric motors are common devices in everyday life, but how do they work and what is the difference between them? In this lesson, we'll explore both of them, which may produce different results but are actually more similar than they may seem.
11. First Law of Thermodynamics: Law of Conservation of Energy
This video describes the first law of thermodynamics. Several examples of the application of this law are discussed. The significance of the law and its practical application are discussed as well.
12. Renewable & Non-Renewable Resources: Definition & Differences
We use a variety of Earth's resources, but not all of them will be around forever. This lesson explains the difference between resources that can be regenerated for our use and those that are gone after they are used once.
13. What Are Fossil Fuels? - Definition, Advantages & Disadvantages
Fossil fuels are sources of energy that have developed within the earth over millions of years. Because fossil fuels - oil, natural gas, and coal - take so long to form, they are considered nonrenewable. Learn more about these fuels, including the pros and cons of using them.
14. What is Solar Energy? - Definition, Pros & Cons
Learn about solar energy and how charged particles from the sun travel to Earth to provide heat and light. Explore solar energy as a direct and indirect energy source and examine the pros and cons of harvesting solar energy for other uses.
15. Wind as a Renewable Energy Resource: Advantages & Disadvantages
Wind power is a renewable energy resource, but there are both pros and cons to this type of energy. In this video lesson, you will learn about wind power as well as some of the benefits and drawbacks of using it as a global energy source.
16. Hydroelectric Energy: Definition, Uses, Advantages & Disadvantages
In this video lesson you will understand how water can be used to generate electrical energy. You will also identify some benefits and drawbacks of using this type of renewable resource for energy production.
17. Geothermal Energy: Advantages and Disadvantages
Geothermal energy is heat energy that is stored within the earth. Learn the methods being used to tap into this thermal energy to heat buildings and generate electricity as well as the advantages and disadvantages of this renewable energy source.
18. Biomass for Renewable Energy: Pros and Cons
Biomass is organic material that can be used to generate heat, electricity, and even fuel. In this lesson, you will learn about the advantages of this abundant and renewable energy source as well as the disadvantages.
19. Kinetic Energy: Examples & Definition
To knock down a set of bowling pins, what must be true about the bowling ball? It must be moving! This lesson discusses the energy perspective of this simple truth: kinetic energy.
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Other chapters within the Holt Physical Science: Online Textbook Help course
- Holt Physical Science Chapter 1: The World of Physical Science
- Holt Physical Science Chapter 2: The Properties of Matter
- Holt Physical Science Chapter 3: States of Matter
- Holt Physical Science Chapter 4: Elements, Compounds, and Mixtures
- Holt Physical Science Chapter 5: Matter in Motion
- Holt Physical Science Chapter 6: Forces and Motion
- Holt Physical Science Chapter 7: Forces in Fluids
- Holt Physical Science Chapter 8: Work and Machines
- Holt Physical Science Chapter 10: Heat and Heat Technology
- Holt Physical Science Chapter 11: Introduction to Atoms
- Holt Physical Science Chapter 12: The Periodic Table
- Holt Physical Science Chapter 13: Chemical Bonding
- Holt Physical Science Chapter 14: Chemical Reactions
- Holt Physical Science Chapter 15: Chemical Compounds
- Holt Physical Science Chapter 16: Atomic Energy
- Holt Physical Science Chapter 17: Introduction to Electricity
- Holt Physical Science Chapter 18: Electromagnetism
- Holt Physical Science Chapter 19: Electronic Technology
- Holt Physical Science Chapter 20: The Energy of Waves
- Holt Physical Science Chapter 21: The Nature of Sound
- Holt Physical Science Chapter 22: The Nature of Light
- Holt Physical Science Chapter 23: Light and Our World