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like charges repel each other, and unlike charges attract each other; Coulomb found that the electric force between two charges is proportional to the product of the two charges; if one charge is doubled, the electric force is doubled-if both charges are doubled, the electric force increases four times
have a north and a south pole, each of which attracts its opposite and repels its similar pole
results when the moving charges are in a wire that loops; this effect is the basis for electric motors
a device that converts mechanical energy, such as water coming down a waterfall, into electric energy
electrical potential energy
can be compare to the gravitational force associated with an object's position; because of the force, the object has potential energy
is a device that measures the potential difference between two points in an electric current
all the resistors are arranged side by side, so that they are all at the same voltage
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