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- 1. Multiple Choice
A closed path that electric current followsVoltageCurrentResistanceCircuit - 2. Multiple ChoiceThe tendency for a material to oppose the flow of electrons, changing electrical energy into heat energy and light.VoltageCurrentResistanceCircuit
- 3. Multiple ChoiceThe current has only one loop to flow through in this circuit.Series CircuitParallel Circuit
- 4. Multiple ChoiceThis circuit contains two or more branches for current to move through.Series CircuitParallel Circuit
- 5. Multiple ChoiceHomes are wired in __________.series circuitparallel circuitkilowatt-hournegative, positive
- 6. Multiple ChoiceWhen you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.parallelseriesopenclosed
- 7. Multiple ChoiceDoes this statement best describe a parallel or a series circuit?
When more light bulbs are added they all remain bright.Parallel circuitSeries circuit - 8. Multiple ChoiceElectricity moves only in a __________ circuit.circuitsquareclosedopen
- 9. Multiple ChoiceWhen we turn the switch to the off position, the circuit is __________.closedopennegative, positiveoverload
- 10. Multiple ChoiceElectricity used in most homes is generated in a __________.power plantconductorcellthermonuclear reactor
- 11. Multiple ChoiceA bulb is the source of electricity in a flashlight.True.False.
- 12. Multiple ChoiceGlass is a good conductor.TrueFalse
- 13. Multiple ChoiceCurrent carrying wires must be insulated because it is dangerous for anyone to touch current carrying wires if they are not insulated.TrueFalse
- 14. Multiple ChoiceThree sources of electricity are:Power plant, solar cells and dry cells.Solar cells, dry cells and motors.Electric generators, electric motors and oil.Power plant, dry cells, and light bulbs
- 15. Multiple ChoiceDoes this statement best describe a parallel or a series circuit?
When more light bulbs are added they all remain bright.Parallel circuitSeries circuit - 16. Multiple ChoiceAn example of a conductor is :a glass paperweighta plastic capa metal screwa wooden handle
- 17. Multiple ChoiceAn example of an insulator is:ironsilvercopper wirerubber
- 18. Multiple ChoiceThe buildup of charges on an object is called:positive chargestatic chargenegative chargestatic discharge
- 19. Multiple ChoiceWhat is a circuit?A pathway that electricity flows in. It has a load, wire, and a puppy.A pathway that protons flow in. It has a load, wire, and a power source.A pathway that electricity flows in. It has a resistor, wire, and a power source.A pathway that electricity flows in. It has a load and wire.
- 20. Multiple ChoiceWhat charge does an electron have?negative (-)positive (+)neutral or no charge (0)
- 21. Multiple ChoiceThe picture shows an electrical circuit. This circuit is a series circuit because:It has 3 light bulbs.The current follows a single path.It uses a single battery.There is no switch.
- 22. Multiple ChoiceWhy are metals useful for making electrical wire?Metals do not bend.Metals hold much heat.Metals are insulators.Metals are conductors.
- 23. Multiple ChoiceWhich of the following materials allows charges to flow easily?woodan electrical insulatorglassan electrical conductor
- 24. Multiple ChoiceThe number of electrons flowing is called _____.voltage.power.current.resistance.
- 25. Multiple ChoiceA material in which electrons are not able to move easilyCircuitInsulatorResistanceConductor
- 26. Multiple ChoiceThis is related to the force that causes electric charges to flowVoltageCurrentResistanceCircuit
- 27. Multiple ChoiceA battery or other device which provides energy for a circuitConductorPower sourceParallel circuitComplete circuit
- 28. Multiple ChoiceSwitchThe part of a circuit which can control whether electricity flowsAn electrical force which occurs as electrons are built up in an objectA small device that stores energy in a chemical formThe area of a conductor through which a current is able to move
- 29. Multiple ChoiceWhat type of circuit is this?Series circuitIncomplete circuitParallel circuitPower source
- 30. Multiple ChoiceWhen there is more than one path for the current to follow, it is called aPathwayConductorSeries circuitParallel circuit
- 31. Multiple ChoiceA continuous flow of negatively charged particles/electronsElectronsCurrentCircuitFuse
- 32. Multiple ChoiceA material that connects the parts of the circuit together and carries electric currentCurrentWireCircuitLoad
- 33. Multiple ChoiceThis changes electrical energy to another form of energy like heat, light, sound.FuseResistorMotorBattery
- 34. Multiple ChoiceIn Figure 21-2 above, which circuit is wired in series?circuit Acircuit Bboth circuit A and Bneither A nor B
- 35. Multiple ChoiceLightning is _____.a buildup of neutronsharmlessa high-voltage electric currenta large discharge of static electricity
- 36. Multiple ChoiceWhat do opposite charges do?AttractRepel
- 37. Multiple ChoiceWhat do like charges do?AttractRepel
- 38. Multiple ChoiceKeys are a?InsulatorConductor
- 39. Multiple ChoiceWhat type of circuit is this?SeriesParallel
- Answer choicesTagsAnswer choicesTags