Teach Engineering
Induced EMF in a Coil Wire
Small groups investigate the interaction between a coil of wire and a magnet to create an electromagnetic field and observe the voltage they create. Through further interactions, they realize a conductor can be charged from the...
Cornell University
Characterizing a Solar Cell
Young classes are sure to get a charge out of this lesson! Learners experiment with circuits of a solar cell. They practice determining current, voltage, and power for the circuit and maximize the voltage and current of the cell.
Curated OER
Magnetic Fields, Magnetic Forces, and Electromagnetic Induction Sample Problems
After high schoolers have learned about electromagnetic induction, they can solve these 10 practice problems. They calculate magnetic field strength, magnetic force, electromotive force, and output voltage. This is a choice option as a...
Curated OER
Physics 152 Fall 2004 Final Exam, Parts A, B, C, D
At the end of a general physics course focused on light and electricity, you can administer this exam. Concepts covered include electromagnetism, circuits, induction, light rays, lenses and mirrors, characteristics of light, electron...
Bowels Physics
Electric Circuits
Investigate the construction of the electric circuit with a thorough presentation that provides a solid background for each type of circuit. After introducing key vocabulary, the lesson goes on to explain circuit design.
Curated OER
Electromagnetic Induction
Students are introduced to the topic of electromagnetic induction. In groups, they describe ways in which the magnetic flux can change and discuss emf and current. They use different scientists laws and apply it to various scenerios in a...
Curated OER
DC Motor Theory
In this physics activity, high schoolers solve 12 problems on DC motor circuit. They make predictions and construct the corresponding circuit to verify if they are correct.
Curated OER
Transformers
Young scholars examine how a transformer works and its practical applications. In this electricity instructional activity students complete several experiments using transformers and generators.
Curated OER
Basic Electric Circuits
Students calculate the resistance across a bank of resistors in a series, parallel and combined circuit. Using new vocabulary words, they define and describe them in a scientific manner. After stating Ohm's Law, they solve electrical...
TeachEngineering
Teach Engineering: Induced Emf in a Coil of Wire
Students use a simple set up consisting of a coil of wire and a magnet to visualize induced EMF. First, students move a coil of wire near a magnet and observe the voltage that results. They then experiment with moving the wire, magnet,...
University of Waterloo (Canada)
Computer Assisted Chem. Tutorial/chemistry of Batteries
A superb explanation of how a battery works. Discusses the associated chemistry which explains how a battery produces a voltage. Includes a series of "Confidence Building Questions."
Other
Univ.of Delaware: Real Batteries and Battery Testers
A discussion of various principles related to voltage. The operation of battery testers and voltmeters are explained. The importance of the internal resistance of a power source is discussed.
CK-12 Foundation
Ck 12: Internal Resistance of a Battery
[Free Registration/Login may be required to access all resource tools.] Batteries have both an ideal internal voltage and a terminal voltage, which is less due to internal resistance. This lesson presents sample problems and a video...
University of Guelph
University of Guelph: Physics Tutorials: Ohm's Law
Explains Ohm's Law and some facts related to it.
National Institutes of Health
Niehs: Kids' Pages: What Are Electric and Magnetic Fields?
Informational fact sheet on electricity with emphasis on electric and magnetic fields.