Across
- 7. a phenomenon happened when light passes a slit
- 10. one of non-ohmic conductor
- 11. an effect of "the pitch is higher as it approaches you"
- 13. 10^-10 m
- 15. the particles of the medium vibrate parallel to the direction of the wave velocity
- 17. a set of slits
- 19. bright fringes
- 20. unit of frequency
- 23. experiment for investigating stationary waves on a string
- 24. a wave which transfers energy from one position to another
- 25. variable resistor
Down
- 1. sources that emit waves with constant phase difference
- 2. The maximum displacement of any point on the wave from its undisturbed position
- 3. a tool for measuring frequency of sound waves
- 4. one kind of electromagnetic waves
- 5. the points where the spring oscillates with maximum amplitude
- 6. minimum frequency of a standing wave
- 8. a device used for comparing potential
- 9. the relevant property of the material correlated with resistance
- 12. in a potential divider, it won't be deflected if the potentiometer is balanced
- 14. a tool that useful for demonstrating transverse wave
- 16. components that obeys Ohm's law
- 18. the resistance of this type of thermistor decreases with increasing temperature
- 21. terminal p.d + lost volts
- 22. every battery has its own ... resistance