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Tides PreQuiz



Multiple Choice
 

 1. 

What is the main cause of ocean tides?
a.
change in water temperature
c.
gravitational pull of the moon
b.
energy from the sun
d.
rotation of the earth
 

 2. 

How many high tides happen to the same spot each day?
a.
two
c.
four
b.
one
 

 3. 

What is a tide?
a.
the amount of water that seeps into the sand
c.
the daily rise and fall of ocean water levels
b.
the point at which waves break on shore
 

 4. 

If the Sun is bigger than the Moon, why does the Moon have a greater effect on the tides?
a.
the Moon is actually almost as big as the Sun
c.
the Moon is much closer than the Sun
b.
the Sun’s gravity does not affect water
 

 5. 

When the Sun, Moon, and Earth form a 90° angle, we have ____ tides.
a.
spring
c.
fall
b.
normal
d.
neap
 

 6. 

Which term refers to the area at the seashore that is underwater during high tide and exposed during low tide?
a.
neritic zone
c.
intertidal zone
b.
mid-ocean zone
d.
open-ocean zone
 

 7. 

What is the main force that drives surface currents?
a.
the Moon
c.
geothermal energy
b.
the wind
 

 8. 

When the Moon, Earth, and Sun are in line,  the differences in the tides or the tidal range is ____.
a.
lowest
c.
greatest
b.
unchanged
d.
unpredictable
 

 9. 

Which of these are true about the tides?
a.
there is one high tide and one low tide every 24 hours
b.
they can happen at any time and are unpredictable
c.
they are caused by the Moon and change every 6 hours
d.
they are caused by the wind
 

 10. 

Which of these pictures will cause a Spring tide?
a.
mc010-1.jpg
c.
mc010-3.jpg
b.
mc010-2.jpg
 

 11. 

What is the ebb tide?
a.
the incoming water at high tide
c.
the water that comes from a breaker
b.
the out going water at low tide
d.
the water flow caused by a tsunami
 

 12. 

Which of these pictures will cause a neap tide?
a.
mc012-1.jpg
c.
mc012-3.jpg
b.
mc012-2.jpg
 



 
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