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- 1. Multiple ChoiceThis kind of electricity is formed by the build up of positive or negative charges on a surface.magnetismstatic electricityconductorscurrent electricity
- 2. Multiple ChoiceWhat kind of circuit allows a current to flow through it?openclosedelectronbroken
- 3. Multiple ChoiceElectric energy is produced by the movement of ___________.protonsneutronsnucleuselectrons
- 4. Multiple ChoiceMatter/material through which electrons/electric charge do NOT flow easily is called....an electric charge.a circuit.a static charge.an insulator.
- 5. Multiple ChoiceWhen electricity moves through a metal wire, the wire isa conductor.an insulator.a generator.a multiplier.
- 6. Multiple ChoiceWhich term refers to the flow of electrical charges?conductanceresistancecurrentenergy
- 7. Multiple Choice
Objects with like charges repel and unlike charges attract. The girl's hair and the comb have-unlike chargeslike chargesneutral chargesno charges - 8. Multiple ChoiceWhat is the unit that is used to describe electric charge?watts.coulomb.energy.
- 9. Multiple ChoiceThe negatively charged particles in an atom are called _____.electronsneutronsnegatronsprotons
- 10. Multiple Choice______ is related to the push that causes charges to move.InductionStaticHigh-resistanceVoltage difference
- 11. Multiple ChoiceA(n) _____ is a closed, conducting path.currentcircuitresistorampere
- 12. Multiple Choice_____ is the tendency for a material to oppose the flow of electrons.ResistanceInductionTransistanceConduction
- 13. Multiple ChoiceWhich is designed to transform electrical energy into thermal energy?parallel circuitseries circuitresistorbattery
- 14. Multiple ChoiceIf an element has 6 protons, 7 neutrons, and 6 electrons, what type of charge does the element have?positivenegativeneutralimaginary
- 15. Multiple ChoiceElectric charges that are alike _______ each other.AttractRepel
- 16. Multiple ChoiceElectric charges that are different _______ each other.AttractRepel
- 17. Multiple ChoiceIf a substance has a higher number of electrons than protons on its surface, what type of charge does it have?A positive charge.A negative charge.A neutral chargeNo charge at all
- 18. Multiple ChoiceWhat types of charges attract?Positive and PositivePositive and NeutralNegative and NeutralPositive and Negative
- 19. Multiple Choice
Which of these materials is a conductor?
Rubber
Plastic
Glass
Copper
- 20. Multiple Choice
Which of these materials is an insulator?
glass
aluminum
copper
steel
- 21. Multiple Choice
Which type of material DOES NOT allow electric current to flow through it?
An insulator
A magnet
A conductor
A metal
- 22. Multiple Choice
Jarrett had a home science project to design an experiment using current electricity. He checked out the science reference book, Safe and Simple Electrical Experiments. As he scanned through the Table of Contents, he noticed that there were many activities. Which of the following titles would best help Jarrett with his home project?
Charging a Balloon
Getting Electricity from a Lemon
Magnetism Exceeds Gravity
Making a Floating Compass
- 23. Multiple Choice
Which of these is an example of current electricity?
Placing a lightning rod on the roof of a house to attract lightning
Rubbing a plastic pipe with a piece of wool to attract small pieces of paper
Building a circuit using copper wire and a D cell battery
Using a sheet of fabric softner in the dryer to help reduce static cling
- 24. Multiple Choice
Which of these below would prevent the flow of electricity?
Copper wire
Screwdriver with plastic handle
Metal rod
Puddle of water
- 25. Multiple ChoiceDC stands for ____ and is used in batteries.Distant CurrentDon't CurrentDirect Current
- 26. Multiple ChoiceWhat is current measured in?InchesAmperesCentimetersNewtons
- 27. Multiple ChoiceWhat is electric current?A flow of electric chargesstatic electricitytwo objects repelling from each otherbatteries
- 28. Multiple ChoiceWhich word means how hard it is for electrons to flow?CurrentVoltageResistancePower
- 29. Multiple ChoiceIf the Voltage is increased and the resistance stays the same, Current willIncreaseDecreaseStay the sameNot enough info
- 30. Multiple ChoiceIf the Voltage stays the same and Resistance is increased, Current willIncreaseDecreaseStay the sameNot enough info
- 31. Multiple ChoiceWhat is resistance measured in?Ω (Ohms)V (Volts)A (Amps)W (Watts)
- 32. Multiple ChoiceWhat 'flows' in a wire?ProtonsNeutronsAtomsElectrons
- 33. Multiple ChoiceWhat size resistor would produce a 3 Amp current flow with a 12 Volt battery1 Ohm3 Ohms4 Ohms12 Ohms
- 34. Multiple ChoiceHow many Volts would it take to push 1 Amp through a resistance of 1 Ohm10 volts1 volt48 volts5 volts
- 35. Multiple ChoiceHow many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor12 volts24 volts1.333348 volts
- 36. Multiple ChoiceIf the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor2.1 Amps2.4 Amps1.71 Amps15 Amps
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