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 Hyperphysics -- Coulomb's Law This web page, authored by Rod Nave of Georgia State University, provides a concise, yet thorough explanation of Coulomb's Law and how it it is used to determine the electric force between charges. A Javascript calculator is available to compute forces between charges. Links are available for users to access related items or delve more deeply into electromagnetic forces. This item is part of a... http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elefor.h...
 PhET: Electric Field Hockey This webpage contains an activity that allows users to guide a charged object, or "puck", through a maze using the electric field created by point charges placed by the user. Options exist to control the mass and sign of the charge of the puck. There are four levels of difficulty that change the barrier placement. Barriers do not affect the fields, only define the path of the puck. The user can... http://phet.colorado.edu/en/simulation/electric-hockey
 Hyperphysics-Electric Field In this free resource topics are connected in a well-organized concept map. One click takes the teacher from electric field to related topics such as Gauss' Law, capacitance, and calculations related to force and field potential. This item is part of a larger collection under continuing development by Dr. Rod Nave, Georgia State University. http://hyperphysics.phy-astr.gsu.edu/hbase/electric/efiecon....
 Electricity as a Fluid Created by David P. Stern, this is a short non-mathematical description of the analogy between fluid flow in pipes and electricity flow in circuits, comparing batteries to pumps, current to flow rate (liters-per-second) and voltage to pressure. At the end the electric field is introduced as the 3-dimensional distribution of voltage in space. The lesson describes ideas such as Ohm's law, electric... http://www.phy6.org/Education/welectrc.html
 Piezoelectricity Demo This lesson plan from the Oregon Museum of Science and Industry explores the history of piezoelectricity, with hands-on examples of how itâ€™s used, models of why it happens, and how it is applied in nanotechnology. Pressing on the piezoelectric buzzer in the background causes a current to flow and the neon bulb in the foreground to glow. http://education.mrsec.wisc.edu/documents/Piezoelectricityac...
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