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- 1. Multiple Choice
Some things here used motors, except ...
Fan
Washing Machine
Door Bell
- 2. Multiple Choice
Radio and alarm used ... to make the sounds.
motors
buzzers
switches
- 3. Multiple Choice
True or False, windmill needs buzzers.
True
False
- 4. Multiple Choice
Does mixer use buzzers or motors?
Motors
Buzzers
- 5. Multiple Choice
An object that uses electricity to make something move and spin round called....
buzzer
motor
- 6. Multiple Choice
The red wire from the buzzer must be connected to the positive side of the cell. Do you think the buzzer will work by this way?
Yes
No
- 7. Multiple Choice
Sella connects the red wire from the buzzer to the negative side of the cell. Do you think this way will make buzzer work?
No
Yes
- 8. Multiple Choice
Why does the right circuit have the light bulb on?
Because the switch is closed
Because the switch is opened
Because it has the switch
- 9. Multiple Choice
Why does the left circuit have no light bulb?
Because the switch is closed
Because the switch is opened
Because it has switch
- 10. Multiple Choice
A device for making, breaking, or changing the connections in an electrical circuit called as.....
circuit
wires
switch
- 11. Multiple Choice
What is the right warning for this picture?
Never touch the damaged wire with wet hands
Never touch the switch with wet hands
Never touch the main electricity with wet hands
- 12. Multiple Choice
Vacuum needs .... to be used.
buzzer
motor
- 13. Multiple Choice
An object which makes a buzzing noise when electricity passes through it called as....
Motor
Buzzer
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