10 (+) points

·         Electrons transfer energy

·         Electric current = electrons repelling other electrons while passing through a conductor

·         Energy source -> gives electrons energy -> conductors transport electrons -> energy is transferred -> electrons transported back to source

·         I = Q/t

·         I is the current in amperes (A), Q is the chare in coulombs (C), and t is the time in seconds.

·         Flow of charge is called an electric current.

·         Ammeter is a current measuring device

·         In a direct current, the current flows in a single direction
power supply -> through conductor -> load (e.g. light bulb) -> back to power supply

·         In an alternating current, elections periodically reverse direction of flow

·         Circuit = path or current from positive side to negative side of power source

·         Black wire = negative, red wire = positive

·         V = E/Q

·         V is electric potential difference, E is energy required to increase the electric potential of a charge, Q.

·         E=VIt

·         E  is energy in Joules, V is the potential difference is volts, I is the current in amperes, and t is the time in seconds

·         Voltmeter measures potential difference