7. Give the defintion of a wave period 8. If 5 wavelongths pass a point in 2 min

Question

7. Give the defintion of a wave period 8. If 5 wavelongths pass a point in 2 minutes, what is the wave period? What does this mean? 9. What is the velocity of a wave with a wavelength of 8 meters and a period of 3 seconds? (Show your work and include units ) 10. As a wave approaches shore what happens to its Wavelength? Speed? And period? 11. Why are waves on the ocean so much bigger than waves in a lake? 12. Search the internet or this webpage to find the definition of deep water waves and shallow water waves

Explanation / Answer

7. The time required for two successive wave crests to pass a fixed point. This  event occurs repeatedly.

8. Wave period = Wavelengths/velocity

T = 2m, f = 5 then v=?

2(1/120secs) = 500/v

1/60 = 500/v=0.1667 = 500/v

v = 300m/s

9. 3 = 800/v

3v = 800

v= 800/3 = 266.67 m/s

10. Decresing speed, decresing wave length and increasing period.

11. Oceans have a bigger waves because, more water larger waves. It has more space and longer wind blow on a wave. But lakes are considerably smaller than Oceans. So, it has smaller waves.

12. The distance travel in water is deeper than 1/2 of wave's wavelength. These are deep water waves.

The distance travel in water is shallower than 1/20 of wave's wavelength. These are shallow water waves.

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