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- 1. Multiple Choice
Which of the following is not a good conductor?
Copper
Silver
Aluminium
Plastic
- 2. Multiple Choice
Particles with opposite charges ____________ and particles with same (or like) charges ____________.
attract, repel
repel, repel
attract, attract
repel, attract
- 3. Multiple Choice
A current is produced when _______________ flow in a circuit.
protons
neutrons
electrons
nucleons
- 4. Multiple Choice
The area of magnetic force around a magnet is known as its ____________.
magnetism
magnetic current
magnetic field
electric current
- 5. Multiple Choice
How do you increase the strength of an electromagnet?
Add a motor and/or light bulbs
Add more light bulbs and wire coils
Add more wire coils
Increase the voltage
- 6. Multiple Choice
What three minerals are attracted to a magnet?
Gold, copper, cobalt
Cobalt, aluminum, silver
Iron, copper, aluminum
Iron, nickel, cobalt
- 7. Multiple ChoiceA device that converts electrical energy into mechanical energyA. electromagnetB. electromagnetic inductionC. electric motorD. electromagnetism
- 8. Multiple Choice
What kind of magnet can be turned on and off?refrigerator magnetelectromagnetmagnetiteiron - 9. Multiple ChoiceWhat is the flow of electricity?electric motorElectric currentElectric eelelectric circuit
- 10. Multiple Choice
If a person accidentally cut a circuit, what would the circuit be called?
closed circuit
open circuit
series circuit
parallel circuit
- Answer choicesTagsAnswer choicesTags