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- 1. Multiple ChoiceAn object through which electrons can easily flow is called a(n) ___________.ConductorInsulator
- 2. Multiple Choice
This is the symbol for a _____?
switch
light
battery
wires
- 3. Multiple ChoiceWhat is a switch's function in a circuit?to make the current hotter or colderturn on and off the flow of currentthe pathway that current flowsto add more power to the circuit
- 4. Multiple Choice
Why is electrical wiring usually covered with a layer of plastic?
To make it look pretty
To help electricity flow along the wire
To make it safe
To add more energy
- 5. Multiple Choice
Why is electrical wiring usually made from copper?
Because copper is shiny
Because copper conducts electricity
Because copper is not magnetic
Because copper insulate electricity
- 6. Multiple Choice
What needs to be done to this circuit so that the lamp lights up?
Close the switch
Add a power source and close the switch
Add another lamp and close the switch
Add another lamp and a switch
- 7. Multiple Choice
A material that does NOT let electricity pass through it is called ...
An electrical conductor
An electrical insulator
An electrical source
An electric appliance
- 8. Multiple Choice
What is the difference between a conductor and an insulator?
An insulator allows electricity to flow through it easily and a conductor does not.
A conductor allows electricity to flow through it easily and an insulator does not.
An insulator is magnetic and a conductor is not.
A conductor is magnetic and an insulator is not.
- 9. Multiple Choice
Joe set up an electrical circuit to determine whether certain materials would conduct electricity. Which of these items would complete Joe's circuit?
A metal pin
A plastic bag
A rubber ball
A wooden block
- 10. Multiple Choice
Electrical current is a flow of
Protons
Neutrons
Electrons
Atoms
- 11. Multiple Choice
Which of the following could NOT be a source of electricity?
- 12. Multiple Choice
Which of the following represents the energy conversion in power stations?
Chemical energy of fossil fuels --> Heat (Thermal energy) --> Kinetic energy of steam in boiler --> Kinetic energy of turbine --> Electrical energy
Chemical energy of fossil fuels --> Kinetic energy of steam in boiler --> Heat (Thermal energy) --> Electrical energy --> Kinetic energy of turbine
Chemical energy of fossil fuels --> kinetic energy of turbine --> Kinetic energy of steam in boiler --> Heat (Thermal energy) --> electrical energy
- 13. Multiple Choice
Which of the following is / are advantage(s) of using solar energy?
stable source of energy
large amount of electricity is generated
less pollution
everywhere in Australia is sunny
- 14. Multiple Choice
Energy transfer is ...
when energy changes from one type to another
when energy changes to the source from where it comes from
when energy stays the same but moves to another object
when energy stays the same but becomes faster
- 15. Multiple Choice
Energy transforming is ...
when energy changes from one type to another
when energy changes to the source from where it comes from
when energy stays the same but moves to another object
when energy stays the same but becomes faster
- 16. Multiple Choice
Which is NOT a renewable source of energy?
Sun
Coal
Wind
Water
- 17. Multiple Choice
Who invented the battery?
Alex Volt
Alexi Battery
Alessandro Volta
Alessandro Battery
- 18. Multiple Choice
What type of energy is not created in this circuit?
chemical
light
sound
electrical
- 19. Multiple ChoiceThis is a series circuit, one path to flowThis is a parallel circuit, more than one path to flowThis is an incomplete circuitThis is a simple circuit
- 20. Multiple ChoiceSeries circuitParallel circuitopen circuitnot a circuit
- 21. Multiple ChoiceA series circuit has ____ path(s) that the electric current can take.OneTwoThreeFour
- 22. Multiple ChoiceIn a parallel circuit, if one connection is broken, all of the connections stop working.TrueFalse
- 23. Multiple ChoiceThe picture shows an electrical circuit. This circuit is a series circuit because:It has 3 light bulbs.The same current flows through all three light bulbs.It uses a single battery.The electrical current has more than one path to flow through
- 24. Multiple ChoiceWhat is a Parallel circuit?Has only one pathHas more than one pathAllows energy to travel through easilyHas only one light bulb
- Answer choicesTagsAnswer choicesTags