CK-12 Physical Science Concepts - For Middle School

(Marvins-Underground-K-12) #1

5.79. Ferromagnetic Material http://www.ck12.org


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At the following URL, read the short article and use the animation to magnetize the ferromagnetic material. Then
answer the questions below. http://www.magnet.fsu.edu/education/tutorials/java/domains/index.html



  1. Describe the process by which the ferromagnetic material becomes magnetized.

  2. What type of magnet does the ferromagnetic material become?

  3. Name all the known elements in the world that are ferromagnetic at room temperature.

  4. How long may a ferromagnetic material remain magnetized?


Review



  1. Define magnetism.

  2. Why is an atom like a tiny magnet?

  3. What are magnetic domains?

  4. What is unique about ferromagnetic materials? List three ferromagnetic materials.

  5. Explain how you can make a permanent magnet from an iron nail.

  6. What is magnetite?

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