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WorksheetsLightbulbs, LEDs, and Circuits Quiz
Total questions: 12
Worksheet time: 6mins
What's the difference between LED bulbs and incandescent bulbs?
LED bulbs are actually tiny wizards using magic gas to light up.
Incandescent bulbs are the superheroes of energy efficiency.
LED bulbs are marathon runners, lasting longer and sipping energy.
Incandescent bulbs are tech geeks, using semiconductors to shine.
Which part of a circuit allows electricity to flow freely?
Resistor
Conductor
Insulator
Battery
What's the superpower of a resistor?
To boost the electricity's power, making it zoom faster
To gently slow down the electricity, keeping things safe
To create an impenetrable barrier, stopping electricity in its tracks
To act as a battery, storing electricity for later use
Which one of these is NOT going to help you conduct electricity?
Copper
Rubber
Aluminum
Gold
How do LEDs create light?
By getting a filament super hot until it glows.
By zipping electricity through a gas, making it glow.
By mixing chemicals together for a glowing reaction.
By letting electrons dance with electron holes, creating light with photons.
Guess what LED stands for!
Light Emitting Diode
Light Energy Device
Luminous Electric Display
Low Energy Diode
Which item is best at stopping electricity?
Iron - The Strong One
Plastic - The Stealthy Protector
Silver - The Shiny Conductor
Copper - The Popular Conductor
What is the superpower of the tiny wire inside a lightbulb?
To reflect light
To break the circuit
To conduct electricity
To produce light when heated
If a circuit is open, what happens next?
The lightbulb will glow brighter.
The lightbulb will not light up.
The battery will recharge itself.
The resistor will melt.
Why are LEDs considered eco-friendlier than incandescent bulbs?
They can heat up your room faster.
They secretly contain superhero gases.
They're energy savers and last almost forever.
They're crafted from the essence of nature.
Using a stronger battery in a circuit, what effect does it have on a lightbulb's brightness?
It becomes dimmer.
It stays the same.
It becomes brighter.
The lightbulb turns off.
Which material conducts electricity the best?
Glass
Wood
Metal
Plastic
