About This Chapter
Praxis Earth and Space Sciences: Principles of Energy - Chapter Summary
Complete this chapter's lessons to understand the principles of energy, including different energy types. The material presented in the lessons can help you prepare for the Earth and Space Sciences Praxis exam. Lessons provide instruction that can assist you in answering test questions that address:
- Defining energy and its place in nature
- Understanding common chemical reactions
- Identifying different energy types, such as kinetic vs. potential energy
- Telling the difference between energy conservation and energy efficiency
- Understanding the ideal gas law
- Applying the principles of nuclear chemistry to fusion, fission and carbon dating
- Calculating the heat capacity for different substances
- Converting between Kelvins and Celsius
Instructors explore these topics through short and engaging video lessons. Examples, summaries and self-assessment quizzes are provided to make sure that you've fully assimilated the lesson material and that you're ready to take the Praxis.
Praxis Earth and Space Sciences: Principles of Energy Objectives
The intent of the Earth and Space Sciences Praxis test is to determine your readiness to teach earth and space sciences subjects at the secondary school level. The test must be completed in two hours and consists of 100 multiple-choice questions. You may take the test on paper or on a computer.
The test may ask you about fundamental concepts, scientific principles and interrelationships on subjects that include oceanography, astronomy, environmental science, meteorology and geology. You will have to analyze and solve problems that may include graphs, charts and diagrams. Questions that cover the principles of energy are provided in the basic scientific principles of earth and space sciences section of the test, which accounts for 8-12% of the exam.
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. Common Chemical Reactions and Energy Change
This lesson covers the five common types of chemical reactions: combination, decomposition, single-replacement, double-replacement, and combustion. You will learn how to predict what kind of chemical reaction will occur. You'll also explore how matter is conserved, but energy can change.
3. 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.
4. Energy Conservation and Energy Efficiency: Examples and Differences
Saving energy is an important topic, but energy conservation and energy efficiency are not the same thing. Learn what the difference is and some examples of both energy conservation and energy efficiency.
5. The Ideal Gas Law and the Gas Constant
Have you ever wondered why the pressure in your car's tires is higher after you have been driving a while? In this lesson, we are going to discuss the law that governs ideal gases and is used to predict the behavior of real gases: the ideal gas law.
6. Fusion, Fission, Carbon Dating, Tracers & Imaging: Applications of Nuclear Chemistry
What can the sun do that we can't? How do carbon atoms 'date'? Are radioactive isotopes helpful in the medical field? The answers to these questions can be found in this lesson on the applications of nuclear chemistry.
7. Nuclear Reaction: Definition & Examples
Learn the differences between a nuclear reaction and a chemical reaction. Also learn how the nuclear reaction involves subatomic particles including protons and neutrons. Discover the different types of nuclear reactions including fission and fusion and also how a nuclear power plant works to produce energy.
8. How to Calculate Specific Heat Capacity for Different Substances
This lesson describes specific heat capacity and explains how the specific heat capacity of water helps to maintain a relatively constant temperature in nature. Learn how to identify the specific heat capacity of other common materials and how to calculate specific heat capacity with an experiment.
9. Temperature Units: Converting Between Kelvins and Celsius
Have you ever wondered what the lowest possible temperature is? In this lesson, you will learn what temperature measures. You will also be introduced to the Kelvin scale (an absolute scale) and learn how it relates to the Celsius scale.
Earning College Credit
Did you know… We have over 160 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the Praxis Earth & Space Sciences - Content Knowledge (5571): Practice & Study Guide course
- Praxis Earth & Space Sciences: Scientific Research Methods & Tools
- Praxis Earth & Space Sciences: Data Collection & Analysis
- Praxis Earth & Space Sciences: Properties of Matter
- Praxis Earth & Space Sciences: Biological, Physical & Chemical Processes
- Praxis Earth & Space Sciences: Science, Technology & Society
- Praxis Earth & Space Sciences: Energy Sources
- Praxis Earth & Space Sciences: Earth Resources
- Praxis Earth & Space Sciences: Plate Tectonics
- Praxis Earth & Space Sciences: Rock Deformation and Mountain Building
- Praxis Earth & Space Sciences: Earth's Spheres and Internal Structure
- Praxis Earth & Space Sciences: Earthquakes
- Praxis Earth & Space Sciences: Volcanoes
- Praxis Earth & Space Sciences: Minerals and Rocks
- Praxis Earth & Space Sciences: Weathering, Soil & Waste
- Praxis Earth & Space Sciences: Earth History & Life Forms
- Praxis Earth & Space Sciences: Atmosphere & Hydrosphere
- Praxis Earth & Space Sciences: Weather Systems & Meteorology
- Praxis Earth & Space Sciences: Weather and Storms
- Praxis Earth & Space Sciences: Natural Phenomena & the Earth's Climate
- Praxis Earth & Space Sciences: Surface & Groundwater
- Praxis Earth & Space Sciences: Glaciers & Oceans
- Praxis Earth & Space Sciences: Earth & the Solar System
- Praxis Earth & Space Sciences: Galaxies & the Universe
- Praxis Earth & Space Sciences: The Exploration of Space
- Praxis Earth and Space Sciences: Content Knowledge Flashcards