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4.7 Vocabulary

Across
the flow of electrons through a conductor
electric current that is constantly flowing in one direction from a negative to positive charge
a material that allow electrons to pass through
a machine that converts an input of energy into an output of kinetic energy
Down
an increase in speed over time; measured in meters per second squared (m/s2)
a material that electrons cannot pass through easily
the circular path electrons travel in a negative to positive direction