Act_15 - Name Section Period 15 Activity Sheet Magnetic...

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57 Name _______________________ Section ______________________ Period 15 Activity Sheet: Magnetic Forces and Electromagnets Activity 15.1: What Are the Properties of Magnets? Experiment with the magnets, magnetic toys, compasses, and other materials on your table to answer the questions. a) Are magnets always attracted to one another, or can they repel each other? Describe or draw diagrams to show when two magnets attract and when they repel. b) Can a magnet attract any materials other than another magnet? List some materials that are attracted to a magnet. c) Do you think a dollar bill is attracted to a magnet? Prediction: ______ Watch as your instructor holds a dollar bill and gently brings a magnet near the bill. What happens? d) If a magnet is broken into pieces, what happens to the pieces? Caution: Our class activities use strong magnets. While these magnets are not dangerous to your health, they can permanently damage objects with magnetic information. Keep watches, credit and ID cards, calculators, and computer discs away from the magnets on your table.
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58 Activity 15.2: How Do Magnetic Domains Store Information? a) Hang a paper clip from a permanent bar magnet. Touch another paper clip to the end of the first clip. Now touch a third clip to the end of the second clip. How long a chain of paper clips can you make? ____________ Explain what holds the clips together.
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This note was uploaded on 06/11/2011 for the course PHYSICS 103 taught by Professor Staff during the Spring '10 term at Ohio State.

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Act_15 - Name Section Period 15 Activity Sheet Magnetic...

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