Untitled
Across
- 6. an _____ field is a field surrounding electric charges or group of charges where a force acts on charges w/in the field
- 7. low resistance instrument used to measure very small currents
- 8. to press drive, pass and affect against resistance or inertia
- 9. aka diverging lens
- 10. it can step up or step down voltages using the th principles of electromagnetic induction.
- 13. is a field that surrounds a magnet
- 15. _____ induction is a process in which electric current is generated in a conductor by a moving or changing magnetic field
- 16. it is a coil of wire that uses current to produce a strong magnetic field
- 19. microscopic grouping of atoms with their magnetic field aligned
- 20. ray of light represented by an arrow pointing away from the mirror
- 21. the physical or mental strength that allows you to so things
- 22. it is a device that converts electrical energy into rotational mechanical energy
- 24. radiation lies beyond the red end of the visible light.
- 25. ray that is shortest in wavelength and highest in frequency
Down
- 1. an act or process of moving
- 2. has two magnetic poles
- 3. used in satellite communicators, radar, television transmission etc.
- 4. magnetic south or north seeking regions on a magnet that produces magnetic forces
- 5. It is a voltage that give rise to an electric current
- 11. number of cycles a wave completes in one second
- 12. materials are materials w/c are attracted by a magnet
- 14. it emits the sound bleep bleep bleep when objects with parts that has magnetic nature pass it
- 17. the distance measured from one of a wave to the next crest.
- 18. is commonly attributed to ferromagnetsm and electromagnetism
- 23. short for radio detecting and ranging
- 26. ______ transmitter attaches information to the radio signal by modulating it