Across
- 3. A material where electrons cannot travel through
- 6. a negatively charged atom
- 7. a phenomenon caused by the amplitude of a sound wave
- 11. unit of frequency
- 12. a noncontact interaction between two objects having electrical charge\
- 15. How fast the electrical current is flowing
- 16. unit of electrical potential
- 17. a measure of light power per area
- 18. one-directional flow of current
- 23. Electric current can flow through very easily
- 25. electromagnetic radiation; much longer wavelength than light
- 26. A force that counteracts the flow of current
- 27. The type of matter a wave travels through
- 28. a particle that is found in the nucleus of every atom
- 29. a change in direction of a wave due to going through different mediums
- 30. the number of waves that pass a fixed point in a unit of time
Down
- 1. back and forth motion of particles
- 2. a branch of physics that studies electric charges
- 4. Unit of electrical resistance
- 5. the crest/top of a wave
- 8. Sound layers
- 9. causes charged matter to experience force in the Electromagnetic field
- 10. Field that surrounds electrical charges
- 13. the maximum displacement of a wave
- 14. The highest surface part of a wave
- 19. A stream of charged particles, moving through an electrical conductor
- 20. An electrical current that flows in multiple directions
- 21. The distance between similar points of a wave
- 22. The relation of current and field
- 24. decrease in volume of any object