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- 1. Multiple ChoiceA complete circuit has .......a motor in ita switch in ittwo bulbs in itno breaks in it
- 2. Multiple ChoiceWhat is an electrical circuit?lets you turn the energy on and offa closed path where where electricity flowsstop electricity from flowing through
- 3. Multiple Choice
You know that the object connected to the wires is a conductor because:The light bulb is glowing bright.It's a complete circuit.It's a closed circuit.The object is shiny. - 4. Multiple ChoiceSomething electricity can't move through is called a(n) ______.conductorwireshoeinsulator
- 5. Multiple ChoiceWhich is NOT an insulator.WoolPlasticCopperGlass
- 6. Multiple ChoiceWhy are metals useful for making electrical wire?Metals do not bend.Metals hold much heat.Metals are insulators.Metals are conductors.
- 7. Multiple ChoiceA student began building a circuit to light a bulb. What else does the student need to produce light?a battery that has energya wire that is insulateda switch that is openanother bulb of the same size
- 8. Multiple ChoiceThis circuit has a battery, buzzer, and switch.
When the switch is closed the buzzer will sound because -the switch gives energy to the batterythe buzzer is made of special plasticthe wires are cooled by the surrounding airelectricity can flow in a complete path - 9. Multiple ChoiceThis image represents what type of circuit?openclosedseriesparallel
- 10. Multiple ChoiceWhat type of circuit is represented by the diagram?closedseriesopenparallel
- 11. Multiple ChoiceIf bulb 1 burns out, what will occur?bulbs 2 and 3 will go outbulbs 2 and 3 receive more voltsbulbs 2 and 3 will stay litnothing will happen
- 12. Multiple Choice
Voltage is
the potential electrical energy or push that makes electrons flow
causes a short circuit with electrical energy
is the term used for rate of charge flow
Wastes energy by allowing current to flow
- 13. Multiple Choice
the relationship between voltage, current, and resistance is called __________ Law
Newton's
Murphys
Ohm's
Faraday's
- 14. Multiple Choice
A laptop is plugged into a 120 V outlet and uses 60 ohm's of resistance. How much current is running though it?
120 Amps
60 Amps
2 Amps
20 Amps
- 15. Multiple Choice
A SERIES circuit has 3 light bulbs. You remove 2 of the lightbulbs from the circuit and now have a complete circuit with 1 light bulb. Will the remaining light bulb be brighter, dimmer, or stay the same?
Brighter
Dimmer
Stay the same
- 16. Multiple Choice
A PARALLEL circuit has 3 light bulbs. You remove 2 of the lightbulbs from the circuit and now have a complete circuit with 1 light bulb. Will the remaining light bulb be brighter, dimmer, or stay the same?
Brighter
Dimmer
Stay the same
- 17. Multiple Choice
A north pole of a magnet is attracted to a ...
South pole of a magnet
North pole of a magnet
- 18. Multiple Choice
You can increase the strength of an electromagnet are increasing the current, adding iron to the core, and .....
increasing the number of coils on the magnet
Decreasing the number of coils on the magnet
Dividing the number of coil
- 19. Multiple Choice
A generator converts.....
Mechanical Energy to Chemical Energy
Mechanical Energy to Nuclear Energy
Electrical Energy to Sound Energy
Mechanical Energy to Electrical Energy
- 20. Multiple Choice
What makes electromagnets different from regular magnets?
they can be switched off and on
they use less energy
they are more user-friendly
they do not pollute the environment
- 21. Multiple Choice
Does adding loops of wire to a solenoid increase or decrease its strength?
Increase
Decrease
Both
Neither
- 22. Multiple Choice
When a current flows through a wire, it creates a _______ around the wire.
magnetic field
magnetic pole
compass
attraction
- Answer choicesTagsAnswer choicesTags