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Jouer Test
1. 
What pushes electric current around a circuit?
A.
a switch
B.
a cell
C.
a buzzer
D.
a bulb
2. 
Electric current flows from the _______________to the _____________end of a cell.
A.
positive; positive
B.
negative; positive
C.
negative; negative
D.
positive; negative
3. 
What happens if you put the two positive terminals of the cells in a torch together? Will the bulb light up?
A.
yes
B.
no
4. 
why the cells in a torch have to be arranged against the positive terminal of other cell.
A.
because the current flow in conventional way
B.
because current needs a continuous path
C.
because electricity need complete circuit
D.
because the particles flowing around the circuit
5. 
A simple circuit is made up of components such as ___________, _____________ and _____________
A.
buzzer
B.
wire
C.
a bulb
D.
cell
E.
switch
6. 
why does the bulb light up when you close the switch?
A.
The current will not flow
B.
Closing a switch completes a circuit
C.
Closing a switch break the circuit
D.
Allows electric current to flow
7. 
What must you do with the switch to break the circuit?
A.
Opening the switch
B.
Closing the switch
8. 
What you should do if the bulb did not light up?
A.
Remove the bulb
B.
Close the switch
C.
Open the switch
D.
Check all your connections in the circuit
9. 
Did the bulbs shine more brightly or less brightly when you removed one bulb from the circuit?
A.
Less brightly
B.
More brightly
C.
No difference
10. 
What happened when you only used one bulb in the circuit?
A.
The bulb light more brightly
B.
The bulb light less brightly
C.
The same
11. 
How well did the buzzer work when you had three cells in the circuit?
A.
The buzzer doesn’t work
B.
The buzzer make a noise
12. 
why do you need at least 3V to make the buzzer work in your circuit?
A.
A strong enough voltage in the circuit to work
B.
The source of electricity was too low
C.
The source of electricity was too strong
D.
It needs a stronger supply of electricity
13. 
The ______________________is the strength of the electricity
A.
Power
B.
Voltage
C.
Switch
D.
Wire
14. 
If you have too many cells in the circuit, the bulbs__________.
A.
More brightly
B.
Less brightly
C.
Burn out
D.
The same
15. 
Main electricity has a ___________voltage than the electricity from cells.
A.
The same
B.
Less stronger
C.
Much stronger
16. 
Never handle electrical appliances when you are _______
A.
Hot
B.
Cold
C.
Wet
D.
Dry
17. 
You could get an electric __________if you push your fingers or a metal object into a wall socket.
A.
Shock
B.
Wave
C.
Play
D.
Vibration
18. 
Do not plug too many appliances into one socket. They will _______the socket and cause a fiire.
A.
Upload
B.
Download
C.
Overload
D.
Lifting
19. 
What is the function of a switch?
A.
Another component in the electrical circuit
B.
The switch turns the electric current on or off
C.
Cut the current flow
D.
Give out alert or noise
20. 
Electricity can flow in _____direction.
A.
Multiple
B.
Two
C.
One
D.
Four