In this lesson, our instructor Bryan Cardella gives an introduction on energy. He explains the past struggles with energy, the United States consumption from the past through the future, energy sources, conservation of energy, sustainable energy policy and micropower.
Energy sources and availability has been a struggle throughout human civilization, dating back to Ancient Greece and Rome
Energy key terms include: work, energy, 1st law of thermodynamics, 2nd law of thermodynamics, laws of efficiency (1st and 2nd), and thermal efficiency
U.S. energy consumption has changed dramatically in the past half of a century: from 30 exajoules (quadrillion Btu) in 1950 to 100 exajoules in 2009
U.S. has 5% of the world’s population but consumes 20% of the energy globally, 90% coming from petroleum, natural gas, and coal
Alternative energy sources include geothermal, nuclear, hydropower, and solar, and renewable energy sources include solar and wind (because they don’t get depleted over time)
When it comes to conserving energy we must consider: energy efficiency, cogeneration, building design, and values/choices
A sustainable energy policy would involve: more reliance on renewables, maximum effectiveness, flexibility/accessibility, and quality/efficiency with respect to the 2nd law of thermodynamics
Micropower involves smaller, distributed systems for producing electricity
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
This book includes a comprehensive review of the key AP Environmental Science concepts and targeted strategies for acing every section of the exam. Additionally, the book includes two full length practice tests with full answer explanations.
This book is an updated manual that offers a brand-new diagnostic test to pinpoint the test taker's strengths and weak areas, two full-length practice exams with all questions answered and explained, a detailed review of all test topics, supplemented with practice questions and quizzes with answers, an overview of the test plus helpful test-taking strategies, and hundreds of diagrams and illustrations .