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Introduction To Magnetism Journal Page 1 With Answers
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    Introduction To Magnetism Journal Page 1 With Answers Introduction To Magnetism Journal Page 1 With Answers Document Transcript

    • Introduction to Magnetism Copy the following questions on your own paper. Make sure you leave enough space for the answers. 1. What is a magnetic domain? (A magnetic domain is a series of atoms that point their poles in the same direction. A bar magnet is made up of a group of domains.) 2. How is it possible for some animals to navigate using Earth's magnetic lines of force? (Some animals can navigate because small amounts of magnetite found in their brains become aligned to Earth's magnetic lines of force.) 3. Discuss the idea of magnetic reversal. How might our lives change if this happened? What could we do to prepare for such an event? 4. How did magnetic resonance imaging revolutionize health care? (Magnetic resonance imaging has revolutionized health care by enabling doctors to detect tumors earlier and more safely than other types of imaging technology like x-rays.) 5. How are magnetic levitation vehicles propelled? (Magnetic levitation vehicles are lifted up and propelled by alternating very strong repulsive and attractive magnetic forces.)