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What is a semi diurnal tide and how is it caused?
answ2. The tides are caused by the attraction of gravity.On the side of the Earth nearest the Moon, the attraction of the Moon lessens the strength of the local perceived gravity field.On the side of the earth farthest from the Moon, the ocean there sees the gravitational pull of the whole Earth-Moon system, but the effective centre of this system is further away than the real centre of the earth. Thus the gravity field is seen as slightly less and there will be high tides there as well.When the Sun and the Moon are in alignment with the Earth, (New Moon), we have the strongest gravitational force and the tides are at their maximum height.When the Sun is on the opposite side of the Earth from the Moon, (Full Moon) then we have a weaker gravitational force, and the high tides are not quite as high as for the New Moon case.
How do spring tides form?
When the Sun, Earth & Moon are in alignment with one another spring tides occur. Spring tides are higher than average. When the Sun - Earth line is at right angles to the Earth - Moon line, we see "neap" tides, which are lower than average.
How would the tides be different if the earth did not rotate?
Without the earth's rotation, the only natural force controlling oceanic activity would be gravity. The sun and the moon would provide only a minor contribution to ocean behavior because of their distance to the earth. Ocean water would instantly attract towards the part of the earth where the center of the strongest gravity pull is taking place. Tides would centralize to this area and disturbed only by catastrophic weather phenomenon that may be provoked by climatic changes do to the lack of rotation.
When the moon revolves around the earth what does it cause?
The pull of the moon's gravity causes Earth's tides.
What causes earth high tides?
Tides are caused by both the Sun and The Moon. Tides are the result of both Gravity and momentum. Gravity attracts objects. This causes water on the Earth to rise up on the side of Earth facing the Sun and the Moon. Momentum tries to continue in the same direction. This causes water on the opposite side from the Sun and the Moon to rise up and keep going in the direction it was going as Earth turned away in response to the Sun's and the Moon's gravity. The Earth is also rotating. This brings different areas of the surface into line with the directions of gravity and momentum. To observers on the Earth, it appears that the tides rise and fall two times each day. But actually, the Earth's rotation has carried the person into the higher or lower regions caused by gravity and momentum. Since the Moon is orbiting the Earth, and the Earth is orbiting the Sun, sometimes there is an alignment between all these things. This causes the highest tides because the tides of both Sun and Moon will join together. The lowest tides occur when the Earth is at a 90° angle between the Sun and Moon. The tides of the Moon and Sun are at that time subtracting from each other.
What whould happen if you had no moon?
if there were no moon, there would be no light in the sky at night (earth would be a lot darker at night, earth's days would be longer (earth will rotate slower), and there will be no tides (the moon pulls the tides)
Interactions with the sun moon and earth?
They rotate around each other, and work together to create tides.
What is the reason why we have low tides high tides?
The gravity of the moon pulls water towards it. As the moon and earth rotate, the water levels raise and lower in different spots.
Would there still be tides if the earth stopped?
Presumably the question is about the Earth's rotation stopping. Eventually, the Earth WILL almost stop rotating on its axis and will become "tidally locked" with the Moon. Then the Earth Moon system will rotate with each facing the other, in "synchronous rotation". At that time and ignoring other things that might happen first, The Earth would no longer have tides. If you want to be really "picky" the Earth would still be rotating very slowly, in that scenario. If the Earth's rotation could stop completely, there would be some (very slow) tides. Also, there would still be a very small effect caused by the Sun.
If there were oceans on the moon would they have tides?
No. The Moon doesn't rotate with respect to Earth; the same side of the Moon always faces the Earth. So even if there were oceans with liquid water, there wouldn't be rising and falling tides as we have here.
How would the tides be affected if earth didnt turn?
Assuming the Moon and Sun still produce the effects they do today, the tides would be much bigger because the water would have 7 days to move in each direction, rather than the 6 hours it has now.
Does the earth have tides?
Yes the earth has tides
How can sun's gravity cause tides on Earth?
Gravity pulls everything but water shows it. I am still looking for tides in a glass of water.
Do tides control the way the earth spins?
Yes, the tides gradually slow Earth's rotation.Yes, the tides gradually slow Earth's rotation.Yes, the tides gradually slow Earth's rotation.Yes, the tides gradually slow Earth's rotation.
Where does nearly all of the energy in the tides originally come from?
From Earth's rotation. Therefore, if tidal energy is used - or not used, but just wasted in friction - Earth will gradually rotate slower and slower.
How many tides does earth have everyday?
Earth has a total of 4 tides a day 2 high tides and 2 low tides.
What is the relationship of the moon to the earth?
The moon and Earth are each affected by each other's gravity and rotate around a center of mass which is actually within Earth, since Earth is far larger in mass. Because of the Earth's large force of gravity on the moon, the moon has undergone synchronous orbit i.e. always faces the same face to the Earth. On the other hand, the moon influences the Earth by causing tides on Earth (two high and two low tides a day as well as larger pattern spring/neap tides).
