About This Chapter
Solar Radiation - Chapter Summary and Learning Objectives
Explore energy's importance in nature through this chapter on solar radiation. You'll learn about the electromagnetic spectrum, examine various laws of radiation and find out how solar energy affects the Earth's temperature. By the end of this chapter, you also should be able to:
- Differentiate between thermal and solar energy.
- Explain the differences among Rayleigh, Mie and nonselective scattering.
- Discuss how the Earth's atmosphere maintains the temperatures and climates in which life forms have evolved.
- Define various terms related to energy transfer, including surface-atmosphere radiation exchange, sensible heat and latent heat.
- Identify the main greenhouse gases.
|What is Energy? - Definition and Significance in Nature||Define energy and describe its overall significance in nature.|
|Kinetic Energy to Potential Energy: Relationship in Different Energy Types||Describe the relationship between kinetic and potential energy in the various energy types.|
|What is Solar Radiation? - Definition & Effects||Describe the effect of solar radiation on seasonal changes.|
|What is Thermal Energy? - Definition & Examples||Describe thermal energy and identify examples in nature.|
|What is Solar Energy? - Definition, Lesson & Quiz||Describe solar energy and identify examples in nature.|
|Electromagnetic Waves: Definition, Sources & Properties||Define electromagnetic waves, their properties and sources. Introduce the electromagnetic spectrum and the different categories of waves.|
|The 7 Major Regions of the Electromagnetic Spectrum||Define and examine the seven major regions of the electromagnetic spectrum: radio, microwaves, infrared, visible light, ultraviolet, x-rays and gamma rays.|
|Laws of Radiation: The Wien and Stefan-Boltzmann Laws||Discuss these two laws of radiation and how they relate to the amount of emitted radiation.|
|The Concept of Blackbody & Radiation's Dependence on Temperature||Explain the concept of blackbody and how radiation depends on temperature.|
|The Solar Constant & Its Variations||Define and describe the solar constant. Explain how the Inverse Square Law is used to calculate the decrease in radiation intensity due to an increase in distance from the radiation source. Discuss variations of the solar constant and their relation to weather.|
|How the Rotation of Earth Affects the Seasons and Climates||Discuss how the Earth revolves around the sun, including how close it is to the sun. Explain how the Earth rotates and how both the revolution and rotation of Earth affect the seasons and climate change.|
|Solar Energy: Effects on Earth's Temperature||Summarize the effects of solar energy on Earth's temperature.|
|Solar Radiation Transfer: Absorption, Reflection & Scattering||Discuss the concept of solar radiation transfer, including absorption, reflection and scattering. Discuss how solar radiation is absorbed and reflected by the atmosphere and the Earth so that the atmosphere acts as a filter and how the atmosphere provides a natural 'greenhouse effect'.|
|Mechanisms of Heat Transfer: Conduction, Convection & Radiation||Describe the mechanisms of heat transfer within the atmosphere, including conduction, convection and radiation.|
|Solar Radiation & the Energy Transfer Process||Discuss the energy transfer process as it relates to solar radiation.|
|Greenhouse Gases and the Enhanced Greenhouse Effect||List the five main greenhouse gases, and describe the enhanced greenhouse effect.|
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. 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.
3. What is Solar Radiation? - Definition & Effects
The sun plays an important role to us on Earth. It provides many things such as light and warmth. But, what is solar radiation and how does it affect us? In this video lesson, you'll learn about solar radiation, how it allows us to survive, and the influence it has on our global climate.
4. What is Thermal Energy? - Definition & Examples
This lesson defines and identifies examples of thermal energy everywhere from your kitchen to the Earth's core. We'll discuss geothermal energy, a renewable energy source, as well.
5. 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.
6. Electromagnetic Waves: Definition, Sources & Properties
In this lesson, learn the basics of electromagnetic waves and how they make up the electromagnetic spectrum. We will explore the major trends and categories within the spectrum, as well as the various sources of electromagnetic waves.
7. The 7 Major Regions of the Electromagnetic Spectrum
This lesson will walk you through each of the major regions of the electromagnetic spectrum. Explore the unique characteristics of X-rays, microwaves, radio waves, UV rays, infrared, gamma rays, and of course, visible light.
8. What Are Wien's Law & the Stefan-Boltzmann Law?
This lesson will explain why an object glows and why it changes color with temperature as we take a look at blackbodies, electromagnetic radiation, Wien's Law, and the Stefan-Boltzmann Law.
9. The Solar Constant & Inverse Square Law in Weather
In this lesson, we will explore the solar constant and the inverse square law as they pertain to how much energy is absorbed by Earth's atmosphere and how it affects weather and climate. You can test yourself at the end with a brief quiz.
10. Effects of the Earth's Rotation & Revolution
This lesson explores the factors that influence seasons, daylight, and temperatures on our planet, including rotation and radiation. At the end, you can test your knowledge with a brief quiz.
11. Solar Energy: Effects on Earth's Temperature
In this video lesson, learn about solar energy and how it affects temperatures on Earth. You will also learn what causes changes in day length and why some parts of Earth experience seasonal differences throughout the year.
12. Solar Radiation Transfer: Absorption, Reflection & Scattering
The sun constantly showers Earth with radiation. Some is absorbed, some is reflected, and some is scattered by the atmosphere. Here, we will explore what happens to this radiation and finish with a brief quiz.
13. Mechanisms of Heat Transfer: Conduction, Convection & Radiation
There are three main ways that heat is transferred between substances or objects. In this video lesson you'll learn about each one, and identify the differences between them.
14. The Energy Transfer Process & Solar Radiation
Solar radiation is the reason that Earth is a hospitable planet for life. In this video lesson, you'll learn about this important energy source, as well as how energy is transferred and how this movement affects both regional and global temperatures.
15. Greenhouse Gases and the Enhanced Greenhouse Effect
In this video lesson, you will learn about the five main greenhouse gases and how their unnaturally high concentrations are leading to the enhanced greenhouse effect and global climate change on Earth.
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