Science

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Across
  1. 1. Temp. at which ferromagnetic materials domains disappears
  2. 3. Irregular horizontal lines that connect locations having equal inclination
  3. 4. maggnetization by contact
  4. 6. published by Gilbert in 1600
  5. 11. Force existing in mag fields that causes moving electric charges
  6. 13. A stream of plasma that emanates from the sun
  7. 17. Magnetizing by electricity
  8. 18. The property of attracting objects by magnetic force
  9. 20. A group of aligned atoms having a single mag. field
  10. 22. Extent to which a material can absorb lines of magnetic flux
  11. 25. Materials whose domains strongly resist changes in the direction of their magnetic are magnetically ______
  12. 26. deviate from original path
  13. 29. Substances with no unpaired electrons
  14. 31. Theory that says the magnetic field of a magnet is the sum of the fields of thousands of magnetic domains, each consisting of unpaired electrons
  15. 32. Resistance of a magnet to being demagnetized by mag field
  16. 33. the outer boundary of the magnetosphere
  17. 34. Substances that can be quickly magnetized even in weak mag. field are magnetically ___
  18. 35. Navigational consisting of magnet free to swing horizontally so it always points north
Down
  1. 2. Magnets made from magnetically hard materials
  2. 5. Magnets made from magnetically soft materials
  3. 7. The line connecting all points where a compass needle points true north
  4. 8. A map can show the angle of declination for entire earth using ___ which connects pts. of = declination
  5. 9. Substances of several unpaired electrons
  6. 10. a device that produces a strong magnetic field when electricity passes through it
  7. 12. Angle of _____ is when compass is few degrees off from pointing true north
  8. 14. Circles the earth halfway between the two mag. poles
  9. 15. Imaginary wires that indicate direction & strength of mag. field
  10. 16. Substance with only one unpaired electron
  11. 19. two vast, doughnut-shaped belts of high-speed charged particles
  12. 21. Extent of a planets mag field
  13. 23. Object capable of attracting materials such as iron or steel by magnetic force
  14. 24. when north-seeking pole dips, or points downward, toward the earth, toward the earth in the. Northern Hemisphere
  15. 27. Magnetizing by no direct contact
  16. 28. region of concentrated magnetism
  17. 30. Display of shimmering light above the earth
  18. 35. The region surrounding a magnet in which other magnets are affected by magnetism