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- 1. Multiple-choice2 minutes1 pt
A closed path that electric current followsVoltageCurrentResistanceCircuit - 2. Multiple-choice2 minutes1 ptThe tendency for a material to oppose the flow of electrons, changing electrical energy into heat energy and light.VoltageCurrentResistanceCircuit
- 3. Multiple-choice2 minutes1 ptThe current has only one loop to flow through in this circuit.Series CircuitParallel Circuit
- 4. Multiple-choice2 minutes1 ptThis circuit contains two or more branches for current to move through.Series CircuitParallel Circuit
- 5. Multiple-choice2 minutes1 ptHomes are wired in __________.series circuitparallel circuitkilowatt-hournegative, positive
- 6. Multiple-choice2 minutes1 ptWhen 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-choice2 minutes1 ptDoes 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-choice2 minutes1 ptElectricity moves only in a __________ circuit.circuitsquareclosedopen
- 9. Multiple-choice2 minutes1 ptWhen we turn the switch to the off position, the circuit is __________.closedopennegative, positiveoverload
- 10. Multiple-choice2 minutes1 ptElectricity used in most homes is generated in a __________.power plantconductorcellthermonuclear reactor
- 11. Multiple-choice2 minutes1 ptA bulb is the source of electricity in a flashlight.True.False.
- 12. Multiple-choice2 minutes1 ptGlass is a good conductor.TrueFalse
- 13. Multiple-choice2 minutes1 ptCurrent carrying wires must be insulated because it is dangerous for anyone to touch current carrying wires if they are not insulated.TrueFalse
- 14. Multiple-choice2 minutes1 ptThree 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-choice2 minutes1 ptDoes 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-choice2 minutes1 ptAn example of a conductor is :a glass paperweighta plastic capa metal screwa wooden handle
- 17. Multiple-choice2 minutes1 ptAn example of an insulator is:ironsilvercopper wirerubber
- 18. Multiple-choice2 minutes1 ptThe buildup of charges on an object is called:positive chargestatic chargenegative chargestatic discharge
- 19. Multiple-choice2 minutes1 ptWhat 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-choice2 minutes1 ptWhat charge does an electron have?negative (-)positive (+)neutral or no charge (0)
- 21. Multiple-choice2 minutes1 ptThe 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-choice2 minutes1 ptWhy are metals useful for making electrical wire?Metals do not bend.Metals hold much heat.Metals are insulators.Metals are conductors.
- 23. Multiple-choice2 minutes1 ptWhich of the following materials allows charges to flow easily?woodan electrical insulatorglassan electrical conductor
- 24. Multiple-choice2 minutes1 ptThe number of electrons flowing is called _____.voltage.power.current.resistance.
- 25. Multiple-choice2 minutes1 ptA material in which electrons are not able to move easilyCircuitInsulatorResistanceConductor
- 26. Multiple-choice2 minutes1 ptThis is related to the force that causes electric charges to flowVoltageCurrentResistanceCircuit
- 27. Multiple-choice2 minutes1 ptA battery or other device which provides energy for a circuitConductorPower sourceParallel circuitComplete circuit
- 28. Multiple-choice2 minutes1 ptSwitchThe 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-choice2 minutes1 ptWhat type of circuit is this?Series circuitIncomplete circuitParallel circuitPower source
- 30. Multiple-choice2 minutes1 ptWhen there is more than one path for the current to follow, it is called aPathwayConductorSeries circuitParallel circuit
- 31. Multiple-choice2 minutes1 ptA continuous flow of negatively charged particles/electronsElectronsCurrentCircuitFuse
- 32. Multiple-choice2 minutes1 ptA material that connects the parts of the circuit together and carries electric currentCurrentWireCircuitLoad
- 33. Multiple-choice2 minutes1 ptThis changes electrical energy to another form of energy like heat, light, sound.FuseResistorMotorBattery
- 34. Multiple-choice2 minutes1 ptIn this type of circuit, receivers are connected to different branchesParallelSeries
- 35. Multiple-choice2 minutes1 ptIn Figure 21-2 above, which circuit is wired in series?circuit Acircuit Bboth circuit A and Bneither A nor B
- 36. Multiple-choice2 minutes1 ptLightning is _____.a buildup of neutronsharmlessa high-voltage electric currenta large discharge of static electricity
- 37. Multiple-choice2 minutes1 ptWhat do opposite charges do?AttractRepel
- 38. Multiple-choice2 minutes1 ptWhat do like charges do?AttractRepel
- 39. Multiple-choice2 minutes1 ptKeys are a?InsulatorConductor
- 40. Multiple-choice2 minutes1 ptWhat type of circuit is this?SeriesParallel
