Tides and waves Flashcards
The Continual rise and fall of water in seas and oceans
Tides
The lowest point of the water is called
Low Tide
The highest point of the water is called
High Tide
What causes Tides
The Gravitational pull of the moon and sun on Earth and its water
Does the moon or the sun have a stronger gravitational pull
The Moon because it is closer
where do High Tides occur
On the sides of the Earth closest to the moon and farthest away from the moon
What creates a High Tide
The moons gravity pulls the water on the side of Earth
What causes a bulge on the ocean farthest from the moon
The moon pulls the Earth closer
What causes Low Tides?
Water is pulled away from the areas not in line with the moon
How many High Tides and Low Tides are there in one day?
Two High Tides and Two Low Tides
Tides with Low Tides that aren’t as low and High Tides that aren’t as high as normal
Neap 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
What tides have higher high tides and lower low tides than normal.
Spring Tides
What tides result when the moon and sun line up during the full moon and new moon?
Spring tides
what is caused by the energy of the wind pushing on the surface of the water?
Most Waves.
What is the highest point of the wave?
Crest
The lowest point of a wave
Trough
The distance between the wave crest and trough
Wave hight
The distance between the crest of one wave and the crest of the next wave?
Wavelength
Do water molecules move much in a wave?
no, they move in small circles as energy passes through them.
Do objects floating on top of the water get pushed by the wave?
No, they just bob up and down.
A wave that breaks against the shore.
breaker
The giant waves are caused by earthquakes or volcanic eruptions under the sea.
Tsunamis
