Types of Tides
When the ocean water is pulled to a part of the Earth and the water rises.
high tide
Tides are rising for about this long and falling for about this long.
6 hours
What factors determine the strength of a gravitational pull?
mass and distance
How many moon phases does the Earth's moon cycle through each month?
8
Name two moon phases where the three objects have the same alignment.
full & new moon/ 1st & 3rd quarter/ waning gibbous & waxing crescent/ waning crescent & waxing gibbous
When the ocean water is pulled away from an area, and the water level lowers
low tide
How long does it take for the rise and fall of the tides to repeat?
approximately 12.5 hours
Which law states that every object in the universe attracts every other object.
Law of Universal Gravitation
A neap tide occurs during which two phases
quarter and third quarter
If the sun and moon are on opposite sides of the Earth, what type of tide is created?
spring tide
It is possible to only have one high tide and one low tide a day in certain areas of the Earth (T/F)
true
There are how many high and low tides each day?
2 high and 2 low
The gravity of this singular object has the greatest effect on the Earth's tides
the moon
A spring tide occurs during which two moon phases?
new moon and full moon
During the first quarter and full moon phases, the three objects have the same alignment. (T/F)
False
When there is the greatest difference between the high and low tides
spring tide
How many times a month do neap tides happen?
twice
How can the Sun affect tides despite its incredible distance from Earth?
mass
The phase after the waxing crescent, there will be what kind of tide?
neap tide
If the gravitational pulls of the sun and moon are working against each other, the three objects create what sort of alignment?
right angle
When there is the least difference between low and high tides.
neap tide
How many times a month do spring tides happen?
twice
What is the main reason for tides
the differences in how much gravity from the moon and the sun pull on different parts of the Earth
In the phase after the waning gibbous phase, there will be what kind of tide?
neap tide
If the gravitational pulls of the sun and moon are working together, the three objects create what sort of alignment?
180 degree angle