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- 1. Multiple Choice
The electricity in our house is
AC
DC
BC
AD
- 2. Multiple Choicecurrent is measured in....voltsampswattsmph
- 3. Multiple Choice
An electric current that continually reverses direction over time is known as a(n)
direct current
alternating current
simple current
- 4. Multiple Choice
An electric current flowing in one direction only
voltage
parallel current
direct current
electric current
- 5. Multiple Choice
Quantity of charge can be measured in
time (s)
Ampere (A)
coulombs (C)
Joule (J)
- 6. Multiple Choice
Electric currents passing through wires will produce a(n)
solenoid
magnet
magnetic field
insulator
- 7. Multiple ChoiceA device that uses an electromagnet to measure electric current is a(n) ____.generatorcommutatorgalvanometerelectric motor
- 8. Multiple ChoiceThe function of an electric motor is to change ____.mechanical energy to electrical energyelectrical energy to chemical energychemical energy to electrical energyelectrical energy to mechanical energy
- 9. Multiple ChoiceThe function of a generator is to change ____.mechanical energy to electrical energyelectrical energy to mechanical energyelectrical energy to chemical energychemical energy to electrical energy
- 10. Multiple ChoiceA dry-cell battery produces ____.an alternating currenta direct currentboth direct and alternating currentthe same current that a generator produces
- 11. Multiple Choice
Materials that easily give up or accept electrons are known as
Electron Acceptors
Conductors
Insulators
I do not know and do not wish to guess.
- 12. Multiple Choice
Materials that resist the charges flowing through are
Electron Resistors
Conductors
Insulators
I do not know and do not wish to guess.
- 13. Multiple Choice
A buildup of electric charges on an object is known as
Electron Clouds
Static Electricity
Resistance
I do not know and do not wish to guess.
- 14. Multiple Choice
This picture is an example of a
series circuit
parallel circuit
Alternating current
I do know and do not wish to guess.
- 15. Multiple Choice
The above picture is an example of a
series circuit
parallel circuit
direct current
I do not know and do not wish to guess.
- 16. Multiple ChoiceGood conductors are _______ resistorsbadgood
- 17. Multiple ChoiceGood insulators are _______ resistorsgoodbad
- 18. Multiple ChoiceElectrical energy is converted to _______ energy in a hair dryer.heatlight
- 19. Multiple ChoiceWhich formulas represents Ohm's law?V=IRR=IVI=RV
- 20. Multiple ChoiceHow many volts are in a circuit with a battery that has a resistance of 10 Ohms and a current of 2 Amps?.5 Volts5 Volts20 Volts
- 21. Multiple Choice
Which of the following makes the best switch material? Use chart
glass fiber
steel nail
aluminum foil
pencil lead
- 22. Multiple Choice
Which switch is an insulator?
glass fiber
steel nail
aluminum foil
pencil lead
- 23. Multiple Choice
An example of static electricity is
- 24. Multiple Choice
The lamp in this circuit will not turn on because it is missing...
a conducting path for the electricity
a device to use the electricity
a source of electricity
a device to start and stop the flow of electricity
- 25. Multiple Choice
What will happen if bulb B is removed?
Bulbs A and C will dim
The circuit will be over
All of the bulbs will go out
The other bulbs will remain lit
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