What is the primary purpose of genre study videos?

• To provide entertainment only

• To showcase historical events

• To offer information or entertainment

• To teach scientific experiments

What is a key characteristic of inventors according to the video?

• They only create new things

• They always succeed on the first try

• They improve existing ideas and persist until they succeed

• They work alone without any help

What was Thomas Edison's initial challenge in creating a light bulb?

• Inventing electricity

• Creating a bulb that would not burn out quickly

• Designing a bulb shape

• Finding a power source

Which material did Edison finally use to create a successful light bulb filament?

• Bamboo

• Metal wire

• Plastic

• Cotton thread

How long did Edison's successful light bulb last?

• 10 days

• 30 days

• 100 days

• 50 days