year 9 science

year 9 science

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  • well the difference between the both of them. well, an electrical motor turns electrical energy into mechanical energy. And a generator turns mechanical energy into electrical energy. However, they are very similar as well. they both convert energy  and both create energy.
  • What is the difference and similarities between and electrical motor and a generator
  • im not sure could you put it on the board
  • there is a link between the two power sources. in each of the two, motor and generator there is a coil. and when electrical currents run through the coils it creates an electromagnetic field.  the way it works in a motor is a magnet is used and that gets pushed by the electromagnetic field and creates a spinning motion. and the way it works in a generator is as a coil of wire is spun between two opposite magnets an electric current is generated
  • Did you know what the link between electromagnetism and generators and motors are? 
  • that's correct
  • Isn't there like a coil in each of the power things
  • that's correct vannessa
  • yes gary.
  • Can anybody give me an example of machines that use electric moters
  • oh, I know one. in my computer, there is a fan I'm pretty sure that is one
  • ooo, would a vacuum cleaner be one
  • wouldn't that mean the fan in my room is an electrical moter it spins just like the one in jim's computer
  • Jim, would you say your fan in your computer is useful to society.
  • Hmm. very interesting
  • Of course, I would. if there was no fan in the computer it would overheat thus making in useless
  • id have to agree with him as well. because fans are used all over the world not just in one computer
  • well in that case could you say it has shaped the world
  • oh yes very easily. ill give you an example, lets say its very hot inside you turn your fan on people used this a lot and then someone thought about making it even cooler and made the air conditioner
  • the coal is burnt at very high tempretures and then the gas and heat that comes of it is whats used for the electricity.
  • it sure is
  • Do you guys wanna know how to convert coal into electricity
  • WHAT? thats not possible
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