Physics 1 Problem Solutions 225

Physics 1 Problem Solutions 225 - Chapt. 29 Magnetic Fields...

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Unformatted text preview: Chapt. 29 Magnetic Fields Causing Forces 221 a) up pole; down pole b) left pole; right pole c) magnet; magnetite d) south pole; north pole e) north pole; south pole 029 qmult 00150 1 1 4 easy memory: pole mnemonic 6. The magnetic pole mnemonic is: a) likes attract, unlikes attract. b) likes contract, unlikes detract. c) likes attract, unlikes repel. d) likes repel, unlikes attract. e) likes repel, unlikes rebell. 029 qmult 00160 1 4 5 easy deducto-memory: fairly strong magnetic field 7. On the Earths surface, a fairly large magnetic field (including laboratory systems) would be: a) 10 8 T. b) 10 4 T. c) 10 4 gauss. d) 1 gauss. e) 1 T. 029 qmult 00200 1 1 4 easy memory: magnetite 8. Magnetic effects are everywhere in nature, but are mostly not perceivable as such by casual observation. The major exception is the attractive and repulsive forces due naturally occurring magnetic materials. But these materials occur in geopraphically restricted areas. In pre-history, magnetism was probably known only to peoples who lived in such areas or traded for magnetic...
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