sources of energy - wave formation Flashcards
what is the primary influent on the formation of waves?
the sun
when do winds occur?
when wind moves across the surface of water
winds move across the surface of the water causing what?
frictional drag
what does the frictional drag cause?
small ripples and waves
what do small ripples and waves lead to?
a circular orbital motion of water particles in the oean
as the seabed becomes shallower towards the coastline what happens to the orbit of water particals?
become more elliptical leading to horizontal movement of the waves
when the wave height increases what decreases?
the wavelength and wave velocity
as the wave hight increase and wavelength and velocity decreases, what does this cause?
water to back up from behind the wave until the wave breaks and surges up the beach