Everything about a Light Bulb - Mocomi.com
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Everything about a Light Bulb - Mocomi.com

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For more cool physics articles and videos, visit: mocomi.com/learn/science/physics/

For more cool physics articles and videos, visit: mocomi.com/learn/science/physics/

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Everything about a Light Bulb - Mocomi.com Everything about a Light Bulb - Mocomi.com Document Transcript

  • Physics for Kids http://mocomi.com/learn/science/physics/ Light Bulb F UN FOR ME! Copyright © 2012 Mocomi & Anibrain Digital Technologies Pvt. Ltd. All Rights Reserved.
  • Light Bulb A light bulb is a simple apparatus that converts electric energy into light energy. The law of conservation of energy says that energy can neither be created nor destroyed, it simply changes form. A light bulb is able to take the the electricity supplied to it and change its form into something that can be used for illumination. + + F UN FOR ME! + + + + + + + + Copyright © 2012 Mocomi & Anibrain Digital Technologies Pvt. Ltd. All Rights Reserved.
  • Light Bulb Glass Filament + - A bulb is made up of a positive and a negative terminal embedded inside glass casing with a tungsten filament that joins the two terminals. When electricity is supplied to the terminals, the flow of electrons heats up the thin filament in between. The electrons continue to bang against the filament until it heats up to the point that it begins to glow. This process happens extremely quickly. F UN FOR ME! Copyright © 2012 Mocomi & Anibrain Digital Technologies Pvt. Ltd. All Rights Reserved.
  • Light Bulb The filament is encased inside transparent glass to let the light shine through and also to protect it from overheating. The air inside the glass is actually a small amount of inert gas that helps prevent the filament from becoming too hot and breaking. When the light bulb has fused it means that the thin coil inside has snapped and therefore electricity cannot flow completely through the circuit. Terminal F UN FOR ME! Copyright © 2012 Mocomi & Anibrain Digital Technologies Pvt. Ltd. All Rights Reserved.
  • Light Bulb Project Can you research what is Tungsten and what makes it a good material to be used in light bulbs? M For more such fun physics articles and videos, visit: http://mocomi.com/learn/science/physics/ F UN FOR ME! Copyright © 2012 Mocomi & Anibrain Digital Technologies Pvt. Ltd. All Rights Reserved.