WAVES

1. the maximum displacement of a particle from its rest position
3. this is due to the change in of speed when a wave travels from one medium to another
5. wave due to the interference of two waves travelling in opposite directions is called a standing or
6. the region of maximum displacement is called a
9. a phenomenon whereby a wave whose vibrations are only in one plane is produced is called
11. the time taken by a wave particle to make one complete oscillation
13. the unit of amplitude and wavelength
15. properties of waves: interference; polarization; reflection and refraction
17. the effect produced when two waves of the same frequency; amplitude and wavelength travelling in the same direction in a medium are superposed
19. in the laboratory water waves can be produced and studied in a ripple
20. point on a stationary wave where there is no movement of the medium

2. a wave that transfers energy in travelling or moving from the source of the disturbance is said to be travelling or
4. the unit of frequency
7. waves which travel perpendicularly to the direction of vibrations producing the waves
8. two types of progressive waves: transverse and
10. a disturbance which travels through a medium transferring energy from one point to another without causing any permanent displacement of the medium
12. the region of maximum downward displacement is called
14. the distance between two successive crests or successive troughs of a wave is called its
16. a point on a stationary wave where there is maximum displacement of the medium
18. the number of complete vibrations or cycles that a particle makes in one second is called