1. What is the fundamental particle that flows through a conductor to produce electricity?, Proton, Electron, Neutron, Ion, Which of the following best defines electric current?, Build-up of stationary charge on a surface, Measure of energy per unit charge, Continuous movement of electric charge, Opposition to the flow of charges, Which practice shows proper safety in handling electrical devices?, Touch exposed wires with dry hands only, Use metal tools to fix live circuits, Unplug appliances before cleaning or repairing them, Plug many devices into one extension cord, Ohm’s Law explains the relationship between which three quantities?, Charge, current, time, Voltage, current, resistance, Power, energy, time, Resistance, power, voltage, What is the standard unit of electrical resistance?Volt, Ampere, Volt, Ohm, Watt, Which statement is TRUE about current in a series circuit?, It changes across each component, It is the same at all points in the circuit, It increases as more loads are added, It is zero near the battery, Which symbol represents a voltmeter in a circuit diagram?, Circle with letter “A” inside, Circle with letter “V” inside, Rectangle, Two parallel lines, What is the main advantage of a parallel circuit over a series circuit?, Uses less wire and materials, Components operate independently of each other, Has a simpler design, Total resistance becomes higher, Which action shows responsible appreciation for electrical safety?, Ignore frayed or damaged wires, Use water to put out electrical fires, Report loose or faulty wiring immediately to adults, Insert metal objects into wall outlets, Voltage is best described as the __________., amount of electron flow, force or push that moves electrons, opposition to current flow, total charge passing through a point, If you connect more batteries in series to a circuit, what happens to total voltage?, It increases, It decreases, It stays the same, It becomes zero, Which component controls whether electricity flows or stops in a circuit?, Battery, Resistor, Switch, Ammeter, Which is a limitation of a series circuit?, Each load gets full voltage from the source, If one load breaks, all loads stop working, It is easy to add separate switches for each load, Current splits at every junction, What instrument is used to measure electric current?, Voltmeter, Ammeter, Thermometer, Resistor, Which statement correctly describes the movement of electrons in a circuit?, Electrons move from positive to negative terminal, Electrons move from negative to positive terminal, Electrons do not move; only energy moves, Electrons move randomly with no fixed direction, A circuit has a 12-volt battery and a 4-ohm resistor. Using Ohm’s Law, what is the amount of current flowing?, 0.33 A, 3 A, 16 A, 43 A, Three identical bulbs are connected in series. If one bulb burns out, what happens to the other two?, They become brighter, They become dimmer, They stop glowing, They stay the same brightness, Two resistors (2Ω and 3Ω) are connected first in series, then in parallel to the same battery. How does their total resistance in parallel compare to their total resistance in series?, Higher than 5Ω, Equal to 5Ω, . Lower than 2Ω, Equal to 2Ω, An ammeter must always be connected in __________ because __________., parallel; it measures difference in charge, series; current is the same along a single path, parallel; voltage is equal across branches, series; it reduces the current in the circuit, Two bulbs are connected in parallel to a battery. When you add a third bulb also in parallel, what happens to the brightness of the first two bulbs?, They get dimmer, They get brighter, They stay the same, They stop working, If voltage remains constant and resistance in a circuit increases, what will happen to current?, Increases proportionally, Decreases proportionally, Remains unchanged, Increases then decreases, Which is the correct way to connect an ammeter and voltmeter in a circuit?, Ammeter in parallel, Voltmeter in series, Ammeter in series, Voltmeter in parallel, Both connected in series, Both connected in parallel, Christmas lights go out completely when one bulb is removed or broken. This shows the lights are connected in __________ because __________., parallel; current has separate paths, series; current flows through only one path, parallel; each bulb gets full voltage, series; current increases through each bulb, Why are household wirings always designed using parallel circuits instead of series circuits? Which is the most valid reason?, Parallel circuits cost less to install, Parallel circuits allow appliances to work independently, Parallel circuits consume less electricity, Parallel circuits do not need protective devices, You are asked to draw a circuit with: one battery, one switch, two resistors in parallel, an ammeter measuring total current, and a voltmeter measuring voltage across the second resistor. Which set of connections is correct?, Switch in series; resistors in parallel; ammeter on the main line; voltmeter parallel to the second resistor, Switch in parallel; resistors in series; ammeter parallel to first resistor; voltmeter on the main line, Switch in series; resistors in series; ammeter parallel to battery; voltmeter in series with second resistor, Switch in parallel; resistors in parallel; ammeter in series with first resistor; voltmeter in series with second resistor

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