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
What component in a flashlight circuit controls the flow of electricity?
Resistor
Capacitor
Switch
Transformer
Which component emits light in a flashlight circuit?
Battery
Switch
Resistor
LED or bulb
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
What might be added to a flashlight circuit to prevent the light source from burning out?
Capacitor
Resistor
Diode
Transformer
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
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
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
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
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