Quiz: Quiz: How does a light bulb work?
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Quiz: How does a light bulb work?
By: Staff
Image: refer to hsw

About This Quiz

What's inside a light bulb? Why don't they burst into flames? What exactly makes a light bulb glow, anyway? Take our quiz to see whether you're in the dark about how light bulbs work.

1.0 of 20
What was a drawback to using oil lamps for lighting?
2.0 of 20
Who was the first to invent an affordable and workable electric light for the home?
3.0 of 20
When was the light bulb invented?
4.0 of 20
Twenty-five years after its invention, how many homes around the world had light bulbs?
5.0 of 20
What are light particles called?
6.0 of 20
Which of these weighs the least?
7.0 of 20
When an electron has more energy, will it be closer, farther or the same distance from the nucleus of the atom?
9.0 of 20
How many contacts are on the base of an incandescent light bulb?
11.0 of 20
In an electrical current, in what direction do the electrons flow?
12.0 of 20
15.0 of 20
If you stretched out the filament in a 60-watt bulb, how long would it be?
16.0 of 20
Why is tungsten a good metal to use for light bulb filaments?
18.0 of 20
What gas fills most light bulbs today?
19.0 of 20
About what percent of the light from an incandescent bulb is actually visible?
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