The light bulb

Before the invention of the light bulb, what did people use to see in the dark?

• Flashlights

• Candles

• Fire

• Eyes

According to the video. Who invented the first light bulb?

• Thomas Edison

• Albert Einstein

• Stephen King

• Tomas Eddson

Thomas Edison, the inventor of the light bulb, is also known for...

• Horseback riding

• For having invented the pressure cooker.

• For have invented the typewriter

• For have developed more than a thousand other inventions.

Apart from the invention of the light bulb, Thomas Edison is known for the creation of a thousand other inventions, such as:

• Voting machine

• Washing machine

• Electric battery

• Movie camera

Answer true or false:

Thomas Edison was very good at school and liked to do science experiments alone.

• True

• False

Answer explanation

He has a curious mind, but he wasn’t good at school, and he did science experiments under his mother tutelage.

What were the first materials that Edison used to build the first electric light bulb?

• Copper and cotton

• Copper, Platinum and filaments made from metal

• Platinum, wood and a beard hair

• Filaments made from metal, copper and silk

When was the first successful lighting of the light bulb on what specific date?

• 21^st October 1979

• 12^th April 1879

• 22^nd October 1879

• 17^th September 1859

12. What was the material that Edison finally used that worked to light the light bulb?

• Cotton

• Carbon Filament

• Iron

• Wood

How long did the first bulb light up?

• 13 hours and a half

• 11 hours

• 13 minutes

• 9 hours and a quarter

How many different materials did Edison use to find the perfect filament for the light bulb to work?

 

• 1475

• 13

• 5100

• 4700