It's About Time
Energy Flow in Ecosystems
Emerging biochemists more fully understand the flow of energy in ecosystems as they explore the laws of thermodynamics and relate them to energy transfer in food chains. They also investigate heat loss from the human body and how...
CPO Science
Potential and Kinetic Energy
Here's a resource ideal for independent learners who need extra reinforcement or would like to work ahead. These textbook chapters and practice problems cover many basic physics concepts, starting with potential and kinetic energy and...
National Institute of Open Schooling
Atomic Structure
Learners explain historical findings such as Rutherford and Bohr's contributions, explain wave particle duality, and formulate Heinsenberg's uncertainty principle. They also draw s, p, and d orbitals, explain more historical findings,...
Science Struck
Science Struck: 22 Examples of Mechanical Energy
Explains what mechanical energy is and provides 22 examples of it.
eSchool Today
E School Today: Mechanical Energy
Learn about mechanical energy, and its forms of potential and kinetic.
Science Struck
Science Struck: The Law of Conservation of Mechanical Energy
The Law of Conservation of Mechanical Energy is explained here.
Georgia State University
Georgia State University: Hyper Physics: Potential Energy
This site from Georgia State University Physics Department defines and explains the concept of potential energy. Using equations and graphics to illustrate the idea, it discusses the many types of potential energy (gravitational,...
Georgia State University
Georgia State University: Hyper Physics: Kinetic Energy
This site from Georgia State University Physics Department defines kinetic energy and compares and contrasts it with other forms of energy. Provides an equation and links to further, more-detailed information.
Georgia State University
Georgia State University: Hyper Physics: Elastic Potential Energy
This site from Georgia State University Physics Department defines elastic potential energy and explains its origin. Provides an equation for computing elastic potential energy and an opportunity to practice solving problems with an...
Georgia State University
Georgia State University: Hyper Physics: Gravitational Potential Energy
This site defines and explains the concept of gravitational potential energy. Uses many equations and graphics to illustrate the idea. Provides an online computational practice set with immediate feedback.
Georgia State University
Georgia State University: Hyper Physics: Energy of Falling Object
This site is from the Physics Department at Georgia State University. The reliance upon the law of conservation of energy as an approach to problem-solving is presented and encouraged. It is modeled through a problem involving a...
Science Struck
Science Struck: The 13 Types of Energy and Their Applications
Read about all the different kinds of potential and kinetic energy. Includes energy formulas and examples of energy applications.
Wikimedia
Wikipedia: Mechanical Equilibrium
Wikipedia provides information on mechanical equilibrium, the state of a mechanical system in which the sum of the forces on each particle of the system is zero.
Integrated Publishing
Integrated Publishing: Pulley Mechanical Advantage
Good illustrations and explanations for finding the mechanical advantage of pulley systems.
Integrated Publishing
Integrated Publishing: How Mechanical Advantage Is Used
Describes how pulley systems are used in the real world, including the role of the mechanical advantage in selecting the proper pulley system.
University of Calgary
University of Calgary: Energy Education: Geothermal Gradient
A good, concise explanation of the geothermal gradient and how and why the Earth's temperature gets hotter and hotter with increasing depth. Includes two diagrams showing this and the heat transfer mechanisms that are taking place.
US Energy Information Administration
U.s. Eia Energy Kids: Renewable Energy: Wind
Mankind has used the wind as an energy source for thousands of years. Discover other ways the wind is used to make energy.
Other
Maths Revision: Work, Energy & Power
Basic definitions and examples for the concepts of work, energy, and power. Covers kinetic and potential energy, and conservation of energy.
Lawrence Berkeley National Laboratory
Berkeley Lab: Nuclear Energy Levels
Brief explanation of nuclear energy levels whose location and properties are governed by the rules of quantum mechanics.
Integrated Publishing
Integrated Publishing: Mechanical Advantage
Good descriptions and diagrams to help explain the mechanical advantage of machines. Includes sample calculations of this quantity.
PBS
Pbs: Planck Discovers the Quantum Nature of Energy
PBS offers a short summary of the discovery of the quantum nature of the atom by Max Planck. Easy to follow.
PBS
Pbs Learning Media: Steam Machine
Explore NOVA Online's interactive steam engine and discover how this machine can convert heat to mechanical energy.
Other
Quantum Mysteries: Deepening Quantum Mysteries
Although it is arguably the most successful theory in physics, quantum physics has often baffled and confounded both its practitioners and the general public. This informative website discusses the types of mysteries, which still plague...
Other
University of Arkansas: Simple Machines
A thorough discussion of all the simple machines, beginning with some thoughts on mechanical advantage and conservation of energy. Very complete. Move down to the section that interests you.
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