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