Thomas Edison and the Lightbulb

The video discusses Thomas Edison's contributions to modern technology, focusing on his development of the practical light bulb. It explains the significance of the filament in the bulb and how Edison's innovation allowed for long-lasting light. The video highlights the transformative impact of light bulbs on society, enabling activities after dark and improving safety. It also explores the broader role of electricity in powering various appliances and devices, emphasizing its importance in daily life.

Who is credited with developing the version of the light bulb we use today?

• Benjamin Franklin

• Alexander Graham Bell

• Thomas Edison

• Nikola Tesla

What was one of the main challenges in creating a practical light bulb before Edison's improvements?

• Designing a glass enclosure

• Creating a filament that lasted long

• Finding a suitable power source

• Inventing a switch mechanism

How did the invention of the light bulb change people's daily routines?

• It reduced the need for streetlights.

• It enabled activities at night and on cloudy days.

• It made candles more popular.

• It allowed people to work only during the day.

What is the primary source of energy that lights up the filament in a light bulb?

• Fire

• Wind energy

• Electricity

• Solar power

Which of the following devices relies on batteries to provide light?

• Dishwashers

• Refrigerators

• Flashlights

• Streetlights