STEM 8: Motors & Electromagnets

123456789101112131415161718192021
Across
  1. 3. A magnetic ______ is the area surrounding the magnetic that can push or pull objects
  2. 4. If ____, copper wire can be magnetized when connected to electricity
  3. 6. Our lab vacuum turned electrical energy into ______ energy to rotate the fan
  4. 9. This type of current is used mainly in large industrial motors
  5. 12. The ______ the current into a motor, the faster the coil spins.
  6. 13. This internal feature allows certain birds to migrate thousands of miles every year
  7. 14. Magnets of the same charge will ____ each other.
  8. 15. Earth's magnetic field protects us from this
  9. 18. the object surrounding the coil of wire in a motor that causes it to spin
  10. 19. electrical machine which converts electrical energy into mechanical energy
  11. 20. one possible power source for a simple electric motor
  12. 21. The ___ lights are an example of the solar winds mixing with atmospheric gases
Down
  1. 1. The type of trains that use magnetic levitation to operate
  2. 2. Wind turbines use this natural resource to covert motion into electricity
  3. 3. The law of electromagnetic induction was discovered by this man
  4. 5. A temporary magnet inside a coiled wire ______ the magnetic strength
  5. 6. This large medical machine uses electromagnetic induction to take images inside the body
  6. 7. Permanent magnets work because their electrons all face the ______ direction
  7. 8. change motion energy into electricity
  8. 10. heats water to create steam to spin turbine motion into electricity
  9. 11. For multiple magnets, the poles that attract have ____ charges
  10. 16. This type of magnet only produces a magnetic field when near a permanent magnet or power source
  11. 17. All magnets have a north and ____ pole.