KIDS QUIZ
FAMOUS INVENTORS AND INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If something is incandescent, it..?
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does not work.
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makes popping sounds.
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records and plays music.
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gives off a lot of light.
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Explanation:
Detailed explanation-1: -When electrical current makes contact with the base of the bulb, electricity enters and heats the tungsten filament housed inside. And when the filament heats up, “incandescence” is created, which is light produced by heat.
Detailed explanation-2: -An object that glowed at a high temperature (such as a piece of coal) was “incandescent.” By the mid-1800s, the incandescent lamp-a.k.a. the lightbulb-had been invented; it contains a filament which gives off light when heated by an electric current.
Detailed explanation-3: -On average, an incandescent bulb produces around 14 lumens per watt, compared to 63 lumens for energy saving compact fluorescents (CFL) and 74 for LED bulbs.
There is 1 question to complete.