Chapter 24 Crossword

2. mined ore which is made mostly of iron
4. a rock that is rich in both magnesium and irom
5. a process where a conductor is moved through a magnetic field
6. Chinese Mariner, and was born of Ma He muslin Family
9. helps form permanent magnets due to the electrons spinning parallel of each other
11. has a law which states that electrical current can make a magnetic field
12. has four cardinal directions and points towards the north pole
14. changes the motion of an object
15. to determine the direction of the magnetic force on a positive moving charge, ƒ, point the thumb of the right hand in the direction of v, the fingers in the direction of B
16. a cylinder that carrys an electrical current
18. opposite charges
19. a cable with current that is surrounded by rubber to avoid shock
21. one at the most Northern and Southern point of the Earth
22. a region where the magnetization is a unifrom direction.
24. a line segment
25. converts motvie power to electrical power

1. an tool used to measure small electrical currents
3. rotating coils on an electric motor
7. where the magnetic north and south are switched
8. metal cored made inot a magnet which can allow electrical current to go through. Has a coil surrounding it
10. the making of new oceanic crust, and it occurs with magma at oceanic ridges
13. surface integral of the normal component of the magnetic field
17. used my alternating current
20. equals 96485.3329 coulombs
23. rotary motor that can turn electrcial enegrgy inot mechanical energy
26. same charges