Lightbulbs Flashcards

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1
Q

What was the most difficult part of inventing a lightbulb?

A

finding the right material to make the filament of the bulb.

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2
Q

What is the filament of a light bulb?

A

the filament is the part of the bulb through which the electrons flow

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3
Q

How is a light bulb similar to a toaster?

A

the filament gets hot and glows which throws off light

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4
Q

Why doesn’t the filament melt when it gets white-hot?

A

it is made of tungsten which has high resistance so doesn’t melt

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5
Q

How big is the filament?

A

the filament is as thin as a hair and is wound into a coil

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6
Q

What else is inside a light bulb?

A

a special kind of gas to keep the filament from burning away and helps the bulb to last a long time

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