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- 1. Multiple ChoiceWhat type of energy is stored in an object due to its high position?Gravitational potential energyElastic potential energyKinetic energyElectrical energy
- 2. Multiple Choice
Which one is renewable energy?
(there is more than 1 answer)
fossil fuel
water
solar
radioactive substances
wind
- 3. Multiple ChoiceWhat is produced on a balloon after it is rubbed with a woolen cloth?Electrostatic chargesElectric currentVoltageResistance
- 4. Multiple ChoiceWhat instrument can be used to detect electrostatic charges?ElectroscopeTelescopeMicroscopePeriscope
- 5. Multiple ChoiceWhich of the following statements about charges is TRUE?Same charges repel while opposite charges attractSame charges repel and opposite charges also repelSame charges attract and opposite charges also attractSame charges attract while opposite charges repel
- 6. Multiple Choice
What type of charge would the substance pictured above have?
positive
negative
neutral
- 7. Multiple ChoiceWhat is electricity?The flow of electrons in the form of an electric chargeThe flow of neutrons in the form of an electric chargeThe flow of protons in the form of an electric chargeA charge that produces light
- 8. Multiple Choice
Which of these is the source of energy within the circuit?
battery
bulb
switch
wire
- 9. Multiple Choice
What is the unit for electric current?
Ampere
Volt
Ohm
Joules
- 10. Multiple ChoiceWhat is this symbol for?light bulbswitchbatteryresistor
- 11. Multiple ChoiceWhat is a voltmeter used to measure?Electric currentVoltageResistanceMagnetism
- 12. Multiple Choice
Which of the following is a poor conductor of electricity?
rubber
copper
steel
aluminum
- 13. Multiple ChoiceWhat is the unit for resistance?AmpereVoltOhmTesla
- 14. Multiple ChoiceAs a voltage goes up, what happens to the current?Current stays the same.Current goes up.Current goes down.Current drops to 0 A.
- 15. Multiple Choice
The longer the wire,
the _________ the resistance.
smaller
greater
- 16. Multiple ChoiceWhat kind of circuit is this?SeriesConsecutiveParallelTraining
- 17. Multiple Choice
Which one is the circuit diagram of this picture?
- 18. Multiple Choice
If bulb 1 burns out in the circuit, what will occur?
bulbs 2 and 3 will go out
bulbs 2 and 3 receive more volts
bulbs 2 and 3 will stay lit
nothing will happen
- 19. Multiple Choice
The current in a hair dryer measures 15.0 A. The resistance of the appliance is 8.0 Ω. What is the voltage?
120 V
0.5 V
7.0 V
1800 V
- 20. Multiple ChoiceEach time a lightbulb is added to a series circuit, the other bulbs in the circuitget brighterget dimmerstay the same brightnessrelease more heat
- 21. Multiple Choice
The total current through this circuit is
0.02 A
0.2 A
2.0 A
0.04 A
- 22. Multiple Choice
The total resistance in this circuit is
100 Ω
450 Ω
400 Ω
30 Ω
- 23. Multiple ChoiceWhat is one problem with using a series circuit?It has a lot of series.If one light goes down, they all go down!It doesn't work properly.There are no problems.
- 24. Multiple Choice
The total resistance of this circuit is
1.05 Ω
11.0 Ω
2.05 Ω
3.67 Ω
- 25. Multiple Choice
A magnet is placed the same distance away from four objects made from different materials. Which object would a magnet pull?
aluminum can
copper pipe
an iron nail
a glass bowl
- 26. Multiple ChoiceWhat do the lines around this magnet represent?North PoleSouth PoleMagnetic DeclinationMagnetic Field
- 27. Multiple Choice
Items containing nickel, iron, and ______ will attract to the magnet.
glass
aluminum
wood
cobalt
- 28. Multiple ChoiceWhere is the strongest attraction force of the magnet?at the polesin the middleabove the magnetbelow the magnet
- 29. Multiple ChoiceWhat is the direction of a magnetic field?From the north pole to the south poleFrom the south pole to the north poleFrom the east pole to the west poleFrom the west pole to the east pole
- 30. Multiple ChoiceA scientist observed that the needle of a compass moved when it was placed near a wire carrying an electric current. What did this observation show?Opposite charges attract.Electric current generates a magnetic field.Magnetized wires generate electricity.Like charges repel.
- 31. Multiple Choice
What makes an electromagnet stronger?
greater number of coils
smaller number of coils
decreasing the current
decreasing the voltage
- 32. Multiple ChoiceWhich of the following could be used as the core of a simple electromagnet?drinking strawiron naila soda bottlean ink pen
- 33. Multiple Choice
How are electromagnets different from magnets?
Electromagnet is bigger than magnet
Electromagnet can be turned on and off
Electromagnet does not have magnetic force
Electromagnet does not have a North and South pole
- 34. Multiple Choice
Which of the following devices does not used an electromagnet?
Television
Cranes
Electric bells
Credit cards
- 35. Multiple Choice
Based on the diagram, which is the North pole for the electromagnet?
X
Y
W
V
- Answer choicesTagsAnswer choicesTags