Grade 6 Online Science Quiz Chapter: Electricity And Circuits

The most famous and widely recognized inventor of the practical incandescent light bulb is Thomas Edison. Edison's version of the incandescent light bulb was patented in 1879 and became the basis for the widespread commercialization and use of electric lighting.

Tungsten is a good metal to use for the light bulb filament because of its high melting point. The filament in a light bulb needs to reach extremely high temperatures in order to produce light. Tungsten has one of the highest melting points of all metals, allowing it to withstand the intense heat generated by the electric current passing through it. This makes tungsten an ideal choice for light bulb filaments as it can maintain its structural integrity and continue to emit light for a longer period of time compared to other metals.

Argon is filled inside an electric bulb. Argon is an inert gas that is commonly used in incandescent light bulbs. It helps to prevent the filament from oxidizing and burning out quickly. Argon also helps to improve the overall efficiency and lifespan of the bulb.

The new light bulb will cost less to run because it uses less energy. This means that Ammy's mother will have to pay less for electricity bills, resulting in cost savings. Additionally, using less energy is also beneficial for the environment as it reduces overall energy consumption and carbon emissions.

The light bulb was invented in 1879.