Magnetism

4. Electrons spinning in _____ directions work against one another.
6. Magnets exert a _____ on one another.
7. The field lines of a magnetic south pole moves...
8. A magnetic field is produced by the motion of electric...
10. Force between two magnets depends on the amount of magnetism and _____.
13. Like poles...
14. A pair of electrons spinning in the same _____ makes up a stronger magnet.
15. A north magnetic pole never exists without the presence of a _____ pole.

1. Magnetic force between two magnets and distance obey the _____ square law.
2. The field lines of a magnetic north pole moves...
3. Regions called magnetic _____ produce magnetic forces.
5. A spinning _____ creates a magnetic field.
6. The space around a magnet is filled with a magnetic _____.
9. Opposite poles...
11. If the distance between two magnets decreases by one-half then the force is...
12. If the distance between two magnets is doubled then the force decreases by one...