Waves
Across
- 2. the transfer of excess charge through a conductor to earth
- 6. a flow of electric charge in only one direction (DC)
- 8. an electric circuit with two or more paths through which charge can flow
- 11. An electric Current that reverses its direction many times a second at regular intervals, typically used in power supplies
- 12. the response of a standing wave to another wave of the same frequency, with dramatic increase in amplitude of the standing wave
- 13. A force associated with charged particles, which has two aspects, electric force and magnetic force
- 14. A change in sound frequency caused by motion of the sound source, motion fo the listener, or both
- 15. A continuous flow of electrical charge
- 16. a wave in which the vibration of the medium is parallel to the direction the wave travels
- 18. The transfer of charge without contact between materials
- 23. a device that converts mechanical energy into electrical energy by the relative motion of a coil of wire with respect to a magnetic field
- 24. A field in a region of space that exerts electric forces on charged particles; a field produced by electric charges or by changing magnetic fields
- 25. the force a magnetic field exerts on a magnet, on a ferromagnetic material, or on a moving electric charges
Down
- 1. Law stating that the total electric charge in an isolated system is constant; electric charge is never created or destroyed
- 3. The bending of a wave as it enters a new medium at an angle
- 4. a solenoid with a ferromagnetic core
- 5. a wave that travels along a surface separating two media
- 7. The bending of a wave as it moves an obstacle or passes through a narrow opening
- 9. a disturbance in matter that carries energy from one place to another
- 10. the study of the behavior of electric charges, including how charge is transferred between objects
- 17. a material that has almost zero resistance when it is cooled to low temperatures
- 19. The relationshipof voltage, current, and resistance: V=IR
- 20. the interaction of two or more waves that combine in a region of overlap
- 21. an area of a longitudinal wave where the particles of the medium are close together
- 22. an electric circuit with only one path through which charge can flow