Electrical Projects - Flashlight - JSS1 Basic technology Past Questions and Answers - page 1
1
What is the primary power source in a simple flashlight circuit?
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A
Solar panels
B
Batteries
C
Generators
D
Capacitors
2
What component in a flashlight circuit controls the flow of electricity?
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A
Resistor
B
Capacitor
C
Switch
D
Transformer
3
Which component emits light in a flashlight circuit?
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A
Battery
B
Switch
C
Resistor
D
LED or bulb
4
What law relates voltage (V), current (I), and resistance (R) in an electrical circuit?
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A
Newton's law
B
Coulomb's law
C
Ohm's law
D
Faraday's law
5
What might be added to a flashlight circuit to prevent the light source from burning out?
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A
Capacitor
B
Resistor
C
Diode
D
Transformer
6
When the switch is closed in a flashlight circuit, what happens?
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A
The circuit is broken
B
The current stops flowing
C
The circuit is completed
D
The batteries discharge
7
Why are LEDs preferred over incandescent bulbs in modern flashlights?
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A
They are cheaper
B
They are more energy efficient
C
They are easier to manufacture
D
They emit more health
8
What is the role of conductors in a flashlight circuit?
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A
To produce light
B
To store energy
C
To allow current to flow
D
To cut as a switch
9
What does closing the switch in a flashlight circuit accomplish?
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A
I opens the circuit
B
It breaks the circuit
C
It completes the circuit
D
It charges the batteries
10
In a flashlight circuit, what typically happens when the batteries are connected in series?
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A
The voltage remains the same
B
The voltage increases
C
The voltage decreases
D
The current decreases
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