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- 1. Multiple ChoiceA material that easily lets electric current flow through it is called___conductorinsulatorelectrocutoratomizer
- 2. Multiple ChoiceWhat is the standard unit for electric current?JouleOhmAmpVolt
- 3. Multiple ChoiceWhich of these concepts measures the amount of electric energy in a current?voltageresistanceworkcurrent
- 4. Multiple ChoiceA toy car needs four 1.5-volt batteries to work. What voltage does the car use?1.5 V4 V5.5 V6 V
- 5. Multiple ChoiceThe mathematical relationship between current, voltage and resistance is known as...Murph's LawOhm's LawLaw and OrderLawrence
- 6. Multiple ChoiceWhat state of matter is electricity in?solidliquidgasnone, it's a form of energy
- 7. Multiple Choice
Which part of the circuit is represented by this symbol?light bulbbatteryswitchwire - 8. Multiple ChoiceWhat part of the circuit is represented by this symbol?switchbatterywireresistor
- 9. Multiple ChoiceChristmas lights are an excellent example of...parallel circuitsseries circuits
- 10. Multiple ChoiceA 12 Volt battery powers a 4 Ohm light bulb. What current flows in this circuit?3 Amps8 Amps16 Amps48 Amps
- 11. Multiple ChoiceA 3.5 Ohm light bulb requires a current of 2 Amps. What voltage battery is needed?1.5 Volt5.5 Volt2 Volt7 Volt
- 12. Multiple ChoiceIn order to have electric current the circuit must be...openclosedcleanexpensive
- 13. Multiple ChoiceWhich is the subatomic particle that flows in electric currents?protonelectronneutronbonbon
- 14. Multiple ChoiceWhich of these does not have a high resistance against electric current?light bulbspeakerfridgewire
- 15. Multiple ChoiceTwo equal light bulbs are connected in series to a battery. Which statement is true for the two bulbs?They only divide voltage between them.They only divide current between them.They divide voltage and current between them.They get full voltage and full current.
- 16. Multiple Choice
The electricity company charges you for this unit of energy.
calorie
joule
kilowatt-hour
British thermal unit
- 17. Multiple Choice
Why do fuses and circuit breakers interrupt a circuit?
protect appliances against too high current
produce more current
reduce the voltage
there is no reason
- Answer choicesTagsAnswer choicesTags