Forces
Common center of mass or balance point
What is the barycenter?
water moves away from shore
What is ebb tide?
Moon, Earth, and Sun aligned
What is syzygy?
Similar to lunar bulges but about half the size
What are solar bulges?
periodic raising and lowering of ocean sea level
What are tides?
Every object that has mass in the universe is attracted to every other object.
What is gravitational force derived from Newton’s Law of Universal Gravitation?
difference between high and low tides
What is tidal range?
Tide-generated wall of water
What is a tidal bore?
–Small silvery fish
–Come out of water in California to spawn
What are grunion?
Tidal water trapped behind coastal barriers in bays and estuaries turns electrical turbines
What is tide generated power?
greatest force/closest to the moon
What is zenith?
Occur at quarter moons
What are neap tides?
Time between high tides
What is the tidal period?
Moon between Earth and Sun
What is a new moon?
You are walking to the Fish Center at night and notice it is a full moon. What kind of tide should you expect to see?
What is a spring tide?
You are walking to the Fish Center at night and notice it is a full moon. What kind of tide should you expect to see?
Center seeking force that tethers Earth and Moon to each other
What is centripetal force?
Two high tides/two low tides per day and tidal range is different
What are mixed tides?
Moon in first or third quarter phase
What is quadrature?
World’s largest tidal range
What is Bay of Fundy?
Fill in the blank:
_________ do not account for continents or friction.
What are idealized tides?
24 hours, 50 minutes
What is a lunar day?
Moon moving from full to last quarter
What is waning gibbous?
Moon moving from new to first quarter
What is a waxing crescent?
The number of spring and neap tides that occur in a lunar month
What is two sets of spring and two sets of neap tides?
What is the equation for gravitational force?
Fg=Gm1m2/r2