Tides and Waves Flashcards
the continual rise and fall of water in seas and oceans
tides
The lowest point of the water
low tide
The highest point of the water
high tide
What causes tides?
Tides are caused by the gravitational pull of the moon
and the sun on Earth and its water
Does the moon or sun have a stronger gravitational pull?
moon
What causes high tide?
The moon’s gravity pulls the water on the side
of Earth facing it
High tides occur on the sides of the Earth closest to and farthest away from the ________________.
moon
How many high tides and low tides are there in one day?
two
What are special tides with low tides that aren’t as low and high tides that aren’t as high as normal.
Neap tides
What is the name of the special tides that have higher high tides and lower low tides than normal
Spring tides
Which tides result in areas not in line with the moon because water is pulled away from these areas.
low tides
Which tides occur when the moon and sun
are at right angles to each other?
neap tides
How often do neap tides occur?
about twice a month
Which tides result when the moon and sun line up during the full moon and new moon?
spring tides
the highest point of a wave
crest