Across
- 3. The change in frequency caused by the source of waves or waves moving, the observer moving, or both moving at different velocities.
- 4. Subjective perception of sound pressure.
- 6. Wave generated by disturbance in electric and magnetic fields.
- 7. The amount that an object impedes an electric current, which is the flow of electrons.
- 12. Highest surfest point in a wave.
- 13. unit of electrical potential, potential difference and electromotive force in the metre–kilogram–second system (SI); it is equal to the difference in potential between two points in a conductor carrying one ampere current when the power dissipated between the points is one watt.
- 14. angle by reflected ray with a perpendicular to the reflecting surface.
- 15. Unit of electric current of which the direction of the flow of electrons switches back and forth at regular intervals or cycles.
- 17. Number of wave cycles given to pass a point in unit of time.
- 21. Wide range of electromagnetic wavelengths.
- 22. The bending of a wave around the edges of an opening or an obstacle.
- 26. Material or substances that allow electricity to flow through them.
- 28. Invisableforce field created by the attraction and repulsion of electrical charges.
- 29. Process by which the presence of one tissue influences the development of others.
- 30. Amount of work energy needed to move a unit of electric change from a refrence point to a specific point in an electric field.
Down
- 1. two terminal device that is connected in a circuit and provide a continuous pressure for the movement of electrons.
- 2. The study of stationary electric charges
- 5. Unit of frequency of one cycle per second.
- 8. Materials when heated in flames or put in electrical discharges, emit light as well-defined and characteristic frequencies.
- 9. One-directional flow of electric charge.
- 10. Subatomic particle found in the nucleus of every atom except of simple hydrogen.
- 11. Principal that the total electric charge in an isolated system never changes.
- 16. Type of matter through which a wave's energy propagates.
- 18. decrease in volume of any object or substance resulting from applied stress.
- 19. the ability of certain materials to conduct electric current with practically zero resistance.
- 20. Any higher-frequency standing wave.
- 23. Subatomic particle found in the nucleus of every atom.
- 24. Max distance particles move from starting point in a wave.
- 25. Measure of light power per unit of area.
- 27. The difference in electrical potential between two points.