Across
- 3. The bending of a wave around the edges of an opening or an obstacle.
- 5. A subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
- 7. A phenomenon that occurs when a wave changes direction as a result of a change in the wave speed at different points along a wave front.
- 8. an electromotive force or potential difference expressed by volts.
- 11. the SI unit of frequency, equal to one cycle per second.
- 12. A phenomenon that occurs when a wave or object bounces off an interface or another object
- 16. a substance which does not readily allow the passage of heat or sound.
- 17. the production and discharge of something, especially gas or radiation.
- 19. the SI unit of electrical resistance, expressing the resistance in a circuit transmitting a current of one ampere when subjected to a potential difference of one volt.
- 20. The time it takes for a particle or physical quantity to move through one cycle of oscillation in a wave.
- 24. the study of stationary electric charges or fields as opposed to electric currents.
- 25. The property of matter that is responsible for electrical phenomena, existing in a positive or negative form.
- 26. The Maximum distance a particle moves from its starting point in a wave
- 28. the attribute of a sound that determines the magnitude of the auditory sensation produced and that primarily depends on the amplitude of the sound wave involved
Down
- 1. a device used to store an electric charge, consisting of one or more pairs of conductors separated by an insulator.
- 2. an instance of vibrating.
- 4. The principle that rock layers form one on top of another, with the youngest layers towards the top
- 6. a stable subatomic particle occuring in all atomic nuclei with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
- 9. The SI base unit of electrical current.
- 10. a solid substance that has a conductivity between that of an insulator and that of most metals, either due to the addition of the impurity or because of the temperature effects.\
- 13. a material or device that conducts or transmits heat, electricity, or sound, especially when regarded in terms of its capacity to do this.
- 14. connect (an electrical charge) with the ground.
- 15. the action of compressing or being compressed.
- 16. the production of an electric or magnetic state by the proximity( without contact) of an electrified or magnetized body.
- 18. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
- 21. A measure of light power per unit area
- 22. the highest point above the rest position
- 23. the SI unit of electromotive force, the difference of potential that would drive ampere of current against one ohm of resistance.
- 25. The highest surface part of a wave
- 27. The type of matter through which a wave’s energy propagates