Tides B2 Flashcards
What are tides?
Tides are the regular rise and fall of sea levels caused by the gravitational forces exerted by the moon and the sun.
True or False: Tides occur only once a day.
False: Tides typically occur twice a day.
Fill in the blank: The gravitational pull of the _____ is primarily responsible for the tides.
moon
What is the term for the highest point of a tide?
High tide
What is the term for the lowest point of a tide?
Low tide
Which phase of the moon is associated with spring tides?
New moon and full moon
What are neap tides?
Neap tides are the tides with the least difference between high and low water, occurring during the first and third quarters of the moon.
How often do tides occur?
Tides occur approximately every 12 hours and 25 minutes.
Multiple Choice: What is the average tidal range in meters?
1-2 meters
True or False: The sun has a greater effect on tides than the moon.
False: The moon has a greater effect on tides than the sun.
What is a tidal cycle?
A tidal cycle refers to the pattern of high and low tides over a period, which is influenced by the positions of the moon and sun.
Fill in the blank: The tidal force causes the ocean water to _____ in response to the gravitational pull.
bulge
What is the name of the effect that causes the tidal bulges to shift?
Coriolis effect
Multiple Choice: Which of the following factors can influence local tidal patterns?
Geography, coastline shape, and water depth
What is the term for the area between high and low tide?
Intertidal zone
True or False: Tides can be predicted with high accuracy.
True
What is tidal locking?
Tidal locking is when an astronomical body always shows the same face to the object it is orbiting due to gravitational effects.
Fill in the blank: Tides are stronger during _____ and _____ phases of the moon.
new, full
What is the primary factor that creates the difference between spring and neap tides?
The alignment of the Earth, moon, and sun.
Multiple Choice: Which of the following is NOT a type of tide?
Solar tide
What is the effect of coastal topography on tides?
Coastal topography can amplify or diminish tidal ranges.
True or False: Tides have no impact on marine life.
False: Tides significantly impact marine life and ecosystems.
What are tidal bores?
Tidal bores are strong tidal waves that travel upstream in a river or estuary.
Fill in the blank: The time between successive high tides is approximately _____ hours.
12.5
