Author Question: The west coast of the United States receives two high tides and two low tides of varying heights per ... (Read 134 times)

geodog55 · **on:** Aug 22, 2018

The west coast of the United States receives two high tides and two low tides of varying heights per
day. What kind of tidal pattern is this?
a. Diurnal tides
b. Semidiurnal tides
c. Semidiurnal mixed tides
d. Spring tides

Question 2

Why does the moon have more of an impact on tides than the sun?
a. The size of the moon is more in balance to Earth
b. The distance of the moon is closer
c. The sun has more power over the tides than the moon
d. The earth rotates around the sun

maaaaaaaaaa · **Reply #1 on:** Aug 22, 2018

Answer to Question 1

ANS: C
The high tides and low tides of semidiurnal mixed tides are significantly different from one another.
This pattern is the result of the blending of diurnal and semidiurnal tidal patterns in the region.
Information can be found in the section The Dynamic Theory of Tides Adds Fluid Motion Dynamics to
the Equilibrium.

Answer to Question 2

ANS: B
The moon is much closer to Earth than the sun is. The sun's influence on tides is only 46 that of the
moon's influence. Information can be found in the section Tides Are the Longest of All Ocean Waves