Electromagnets

ElectromagnetsBy: Emily M.Note: After the presentation there will be a short quiz consisting of 3 questions. Dont forget to listen and pay attention because the answers can be found in this presentation.What are electromagnets?

An electromagnet is a device consisting of an iron or steel core that is magnetized by an electric current in a coil that surrounds it.How to make a electromagnet?VideoMaterials

BatterySwitchWires (3)BoltScrew

http://www.videojug.com/film/how-to-make-an-electromagnetHow are electromagnets used in our everyday life?

In everyday life, electromagnets are used in motors that run appliances and machines we use. Each motor has copper wires wound around an iron core. When electricity passes through the iron core, the core rotates at high speed. The high speed creates a magnetic field between the core and the wires. This makes the electricity course through a power supply that makes the appliance or machine run.Why are electromagnets helpful in our everyday life?

Electromagnets are helpful because you can turn them on and off. If you used a regular magnet it would suck up everything around you that is magnetic.Quiz

The following quiz consist of 3 questions that can be found in my presentation.What is an electromagnet?An electromagnet is a device consisting of an iron or steel core that is magnetized by an electric current in a coil that surrounds itorAn electromagnet is a battery, wires, light bulb, and switch connected together to make an electrical currentWhere can electromagnets be found?Car dealersJunkyardsToy StoresBankWhat materials can you use to make electromagnets?BatteryLight bulbSwitchBoltNail Wires (2)BatterySwitchWires (3)BoltScrew

Creditshttp://dictionary.reference.com/browse/electromagnet?s=thttp://electromagneticblog.blogspot.comhttp://www.ask.com/question/how-are-electromagnets-used-in-every-day-lifehttp://static.ddmcdn.com/gif/electromagnets-1.jpghttp://www.dreamstime.com/stock-image-scrap-yard-magnet-image13277261http://drawisland.com/

SoundJay.com Sound Effectsnull10776.0