Light Bulb

What was a major drawback of using candles as a source of light before the invention of the light bulb?

• They didn't give off much light.

• They were too expensive.

• They were difficult to make.

• They caused pollution.

Tags

CCSS.RI.4.2

CCSS.RI.5.2

CCSS.RL.3.2

CCSS.RL.4.2

CCSS.RL.5.2

What was Thomas Edison's key innovation in the development of the light bulb?

• Using a charred bamboo filament.

• Inventing the first electric light.

• Creating a gas lamp.

• Developing a new type of candle.

Tags

CCSS.RI.3.2

CCSS.RI.4.2

CCSS.RL.3.2

CCSS.RL.4.2

CCSS.RL.5.2

How did the invention of the light bulb impact factories?

• It allowed them to operate around the clock.

• It made them more expensive to run.

• It reduced the number of workers needed.

• It made them safer to work in.

What problem did early inventors face with the filaments in electric lights before Edison?

• The filaments would catch fire easily.

• The filaments were too expensive to produce.

• The filaments were too dim.

• The filaments were difficult to install.

What was one of the consequences of the widespread installation of electric outlets in homes?

• It led to the invention of many home appliances.

• It caused an increase in electricity prices.

• It reduced the need for candles.

• It made homes more dangerous.