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