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- 1. Multiple ChoiceIn a neutral atom, the number of electrons is equal to the number of _______.NeutronsOrbitsProtonssubatomic particles
- 2. Multiple ChoiceIf two charges repel each other, the two charges must bePositive and neutraPositive and negativepositive and neutralnegative and negative
- 3. Multiple ChoiceIf you rub a glass rod with a piece of silk, the rod becomes positively charged. This means thatfriction destroyed electrons in the rod.the silk has become negatively charged.protons have moved to the rod.glass attracts more protons.
- 4. Multiple ChoiceCharging by ____ occurs when electrons are transferred from one object to another by direct contact.reductioninductionconductionfriction
- 5. Multiple Choice
Which of the following is an insulator?
an eraser
a wire
a penny
a metal spoon
- 6. Multiple Choice
Which of the following is a conductor?
wood
rubber
metal
plastic
- 7. Multiple Choice
What is the purpose of a fuse?
to break the circuit and turn the power off if there is too much power being run
to add more power to the circuit
to be a conductor
to be an insulator
- 8. Multiple Choice
Imagine you are creating a circuit. It works and the light bulb turns on. Then you add a piece of plastic to the circuit, and the light bulb does not turn on. We can infer that the plastic is
an insulator
a conductor
an electron
static electricity
- 9. Multiple Choice
Items that have the same charge will do what?
attract
repel
- 10. Multiple Choice
Items that have opposite charges do what?
attract
repel
nothing changes
- 11. Multiple Choice
What is the build up of electrical charges in one place called?
neutrons
static electricity
insulator
conductor
- 12. Multiple ChoiceA particle that carries a negative electric charge is called a(n) ______.neutronatomprotonelectron
- 13. Multiple ChoiceAn example of a voltage source is a _____.voltmeterbatteryresistanceswitch
- 14. Multiple ChoiceA circuit that is connected to Earth is said to be _____.seriesparallelgroundeddischarged
- 15. Multiple ChoiceYour hair might be attracted to your comb as your hair and the combe become oppositely charged.truefalse
- 16. Multiple ChoiceA neutral object becomes negatively charged when it loses electrons.truefalse
- 17. Multiple ChoiceElectricity that flows in a closed path is called apathcurrentcircuit
- 18. Multiple ChoiceElectricity that flows in a closed path is called apathcurrentcircuit
- 19. Multiple Choice____________ stops the flow of electricity.A conductorAn insulatorA magnet
- 20. Multiple ChoiceTwo types of circuits areparallel and magneticelectromagnetic and seriesseries and parallel
- 21. Multiple ChoiceThe unit for current is theVoltOhmElectronAmp
- 22. Multiple ChoiceIn a ________ circuit there are multiple paths for the current to take.SeriesParallel
- Answer choicesTagsAnswer choicesTags