Tides Review

What causes Tides?

• The Coriolis effect deflecting ocean currents

• the rotation of the earth on its axis

• The real cause of tides is not known

• the gravitation pull of the sun and moon

In newton's equilibrium model of tides, the tidal buldges represent

• High tides by gravitaional pull of the earth

• The wobble of the earth as it rotates rotates on its axis

• low tides

• normal shape of the earth

Which of the following has the greatest influence over the earth's tides?

• Moon

• Sun

In Newton's Equilibrium Model of Tides, the High tides occur?

• 6 hours apart

• 12 hours apart

• 24 hours apart

• 3 hours apart

How many tides occur per day?

• 2

• 3

• 4

• 5

How long is a lunar day?

• 24 hours

• 27 days

• 24 hours 50 min

• 14 day and 30 min

Tides occur at different times each day because...

• the moon moves over 13 degrees each day while the earth takes 24 hours to rotate

• the earth rotation slows down everyday

• the sun's graviational pull slows down the rise of the high tide

One of the reasons Tides do not occur the way we draw them in Newton's model is because the moon is not lined up exactly at the earth equator.  The angle of the moon is lightly higher this angle is called:

• Declination

• Apogee

• perigee

• parellel

During which times will the tidal range be the largest?

• Full/New moon

• Quarter moons

During which time periods does the earth experience the greatest tidal range?

• Full Moon

• First Quarter moon

• Third quarter moon