See pattern of field lines
http://physics.bu.edu/~duffy/HTML5/EField.html
Helen rates this resource as Good
See pattern of field lines
http://physics.bu.edu/~duffy/HTML5/EField.html
Helen rates this resource as Good
Build up field arrows by moving charge near other charge
http://mw.concord.org/nextgen/#interactives/physics/electrostatics-physics/direction-force-physics
Helen rates this resource as Good
Coulomb’s Law
Transferring energy electrically
http://www.thephysicsaviary.com/Physics/Programs/Labs/ElectricalEquivalentOfHeatLab/index.html
Coulomb’s Law
See pattern of field lines
http://www.physicsclassroom.com/Physics-Interactives/Static-Electricity/Electric-Field-Lines
Try to get the right charges on the rods (hard)
http://www.physicsclassroom.com/Physics-Interactives/Static-Electricity/Charging