1) What is the S.I. unit of current? a) Volts b) Joules c) Kelvin d) Ampere 2) What is the definition of current? a) The rate of flow of electric charges b) The number of electric charges c) The type of electric charges d) The energy needed to drive one unit charge 3) What is the S.I. unit of potential difference? a) Voltage b) Ampere c) Joules d) Volts 4) What should be used to measure the current in a circuit? a) Voltmeter b) Current detector c) Ammeter d) Thermometer 5) How should a voltmeter be connected to a component in the circuit? a) Series b) Parallel 6) What happens to the current when the flow of electric charges is faster? a) Current decreases b) Current increases 7) How should an ammeter be connected to a component in the circuit? a) Series b) Parallel 8) What type of circuit is this? a) parallel circuit b) open circuit c) closed circuit 9) What describes a parallel circuit? a) electricity flow in one path only b) electricity cannot flow through the entire circuit c) electricity flow in two or more paths d) electricity flows continuously 10) A larger potential difference means __________ is needed to drive one unit charge around the circuit. a) less energy b) more energy

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