Monday, April 15, 2013

Resource



http://video.nationalgeographic.com/video/kids/cartoons-tv-movies-kids/i-didnt-know-that-kids/idkt-magnets-kids/


this video does a great job of explaining the basic principles of magnets. It explains that a significant amount of the things on this earth have magnets. It also talked about the north and south ends of magnets and how opposites attract. It then gave an example of electromagnetic induction which is in fact what roller coasters rely on. It explains how in a roller coaster the magnets in the drop car produces its own magnetic field and then electric current is produced through friction. I highly recommend this video as a study tool because it explains magnets in an easy way to understand and it pacts the video with multiple real life examples. 

2 comments:

  1. Hey isabelle. I really enjoyed your resource because it wasn't a boring youtube video. It was very well produced and explained topics clearly. One thing that is similar to mine is that it talks about the natural magnets in the earth. One thing that is different from mine is that your resource gives specific uses of the magnets. For example, magnets are used for roller coaster breaks. I honestly cant criticize this resource, its great! I can only agree with you when you say this resource would be good to study for.

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  2. I really like this source! Not only does it explain things that we learned in class such as the poles and how compasses work, but goes on to explain why homing pigeons are good at navigating. It also helps that they use magnets in their explanation of when magnets attract each other and when magnets repel each other. I had a video too and I think they can be really helpful. Instead of just looking up answers on a web site, which we already do with our book, it is nice to have someone explain everything as well as give real life examples. I wish that my source had mentioned something about electromagnetic induction like yours. I think it's interesting to know that roller coasters are completely reliant on magnets. I wonder if we will learn about that later in class. We could even do an investigation and ride a roller coaster ourselves. I will definitely use this to study for the test and then the final exam. The next time you go to an amusement park, will you think of the physics involved in roller coasters?

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