Wolfram Research
Wolfram Science World: Joule's Law
This site briefly defines Joule's Law. A formula is provided and links to related terms.
Khan Academy
Khan Academy: Conservation of Charge Review
Review the conservation of charge and how charge is transferred in various scenarios.
Khan Academy
Khan Academy: Current, Resistance, and Resistivity Review
Review the key terms, equations, and skills related to current, resistance, and resistivity, including how to find the current direction and what resistance depends on.
Khan Academy
Khan Academy: Dc Ammeters and Voltmeters Review
Review the key terms and skills related to voltmeters and ammeters, including where to place them in a circuit.
Khan Academy
Khan Academy: The Circuit Elements of a Simple Defibrillator
This is a five-question quiz related to circuit elements of a simple defibrillator.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Electromagnets (Grades 3 and 4)
This lesson helps students to understand the difference between magenets and electromagnets. They will also create an electromagnet.
National High Magnetic Field Laboratory
Magnet Academy: Jean Charles Athanase Peltier (1785 1845)
Although he didn't start studying physics until he retired from the clock-making business at age 30, French native Jean Peltier made immense contributions to science that still reverberate today. Even with the primitive tools available...
Khan Academy
Khan Academy: Experiment: What's the Shape of a Magnetic Field?
See drawing from Hans Christian Orsted's lab notebook showing an experiment in which an electric charge passing through a wire seemed to create a magnetic field!
National High Magnetic Field Laboratory
Magnet Academy: Theodore Maiman
Theodore Maiman built the world's first operable laser. Ironically, Maiman's first paper announcing this momentous achievement, which many other scientists had been racing to complete themselves, was rejected. Since then, however, lasers...
Khan Academy
Khan Academy: Kirchhoff's Junction Rule Review
Review the key terms and skills related to Kirchhoff's junction rule.
Khan Academy
Khan Academy: Resistors in Series and Parallel Review
Review how to find the equivalent resistance for resistors in parallel and series configurations. Recall the current and voltage properties of series and parallel configurations of resistors.
Khan Academy
Khan Academy: Light: Electromagnetic Waves, Electromagnetic Spectrum and Photons
This article discusses the properties of electromagnetic radiation and photons.
Symmetry Magazine
Symmetry Magazine: Explain It in 60 Seconds: Superconductors
Superconductors are materials that offer no resistance to electricity passing through them. They have many applications in science, such as in the Large Hadron Collider. "Explain It In 60 Seconds" is an article series that aims to...
Wikimedia
Wikipedia: Albert Einstein
In this Spanish-language entry, grasp a concrete understanding of a complicated man whose discoveries impacted society more than any other scientist. This site chronicles the life and accomplishments of Albert Einstein. It also studies...