To us, the earth and moon are pretty solid. But the fact is that both bodies are
somewhat 'pliable', like stiff squash balls.
We know that there's a gravitational force between them ... that's the force
that keeps the moon in orbit around the earth, and causes the ocean tides.
Since the earth is somewhat pliable, there's also a "land tide" ... the land
actually rises a few inches in the direction of the moon. So what you have to
visualize is a bulge on the earth and a bulge on the moon, pointing toward
each other, because of the two-way gravitational attraction.
All that squishing and squeezing as the body rotates robs energy from its
rotation, and the rotation slows down. The earth's rotation is slowing down
so that the length of the day is increasing by a few thousandths of a second
every year. And the moon has lost so much rotational energy that the bulge
on it can't even move from one place to another any more. The bulge on the
moon is locked in place, always pointing toward the earth, and never moving.
So the same place on the moon always stays facing the earth. That means that
as the moon swings around the earth, it turns slowly to keep the bulge facing
the earth ... and the periods of rotation and revolutiuoin wind up to be exactly
the same length of time ... 27.32 days.
Yes.
Another Answer:
The moon rotate on its axis in the same time that it take to revolve around the Earth.
Whereas the Earth rotates on its axis 365 times before making one revolution around the sun.
The moon is tidally locked to Earth - meaning the same side of the moon always faces Earth. As the moon orbits Earth it rotates very slowly, taking about 27.3 days to rotate once, again while facing Earth.
Before we answer, let's make sure we're all talking about the same thing.
"Rotate" refers to spinning in one place, like a rotating Basketball perched on
Michael Jordan's finger. That's the 24-hour motion of the earth that's responsible
for day and night. It has no connection with the earth's distance from the sun.
"Revolve" refers to moving on a track around a central point, like the Indy-500 cars
revolving around the infield. That's the earth's once-a-year motion that's connected with
the cycle of seasons, and in that motion, the speed does depend on the earth's distance
from the sun.
The farther a planet's entire orbit is from the sun, the slower it moves in its entire orbit.
And within each orbit that's not a perfect circle, the planet moves slightly faster past
the points where it's closer to the sun, and slightly slower past the points where that
distance is greater.
The earth is closest to the sun, and moving slightly faster, during the first few days of January.
And we're farthest from the sun, and moving slightly slower, during the first week in July.
15 - 25 millionths of a second every year. That's 0.000015 -- 0.000025 seconds/year.
Tidal friction. Lunar gravity creates friction between earth's oceans and continental coast lines, causing the rotation rate to slow.
if the earth moves to fast we could end up getting dizzy and dying
It isn't slow. In fact it orbits the sun at about an astonishing 100000 km/h, and spin around it's axis at a counter clockwise direction at about 1700 km/h an hour.
an infitessimally small amount per year.
time of the season
First understand that Just like the Earth, the Moon does spin on its axis. However the spin of the Moon is "tidally locked" with Earth so that as the Moon orbits the Earth about every 27 days, it also makes one very slow spin in the same direction every 27 days. This means that no matter when you see the Moon, it always shows the same side to the Earth.
No. Tidal interactions with the moon are gradually slowing the rate of Earth's spin
No, the Earth and the Moon revolve together around the Sun. (The Moon orbits the Earth and both orbit the Sun together.)
The moon. ________________ The Earth loses its kinetic energy due to all forms of friction acting on it (ie, tides, galactic space dust, solar wind, space weather, geomagnetic storms, etc). Because of this, there is an extra second added to the time it takes the Earth to fully spin roughly every 100 years.
they spin on an axis -cw, 12
First understand that Just like the Earth, the Moon does spin on its axis. However the spin of the Moon is "tidally locked" with Earth so that as the Moon orbits the Earth about every 27 days, it also makes one very slow spin in the same direction every 27 days. This means that no matter when you see the Moon, it always shows the same side to the Earth.
cuz +he moon spin and orbi+ happen at +he same speed. Tidal forces between earth and the moon have slowed the moon's rotation in a manner that causes the same side of the moon to always be facing earth.
A tide. You're asking about the tidal force caused by the interaction of the earth and moon. The earth and moon orbit around their common point, the barycenter, which is located within the body of the earth. As the earth swings away from the barycenter, the tides are caused that are observed on the side of earth away from the moon.
No. It's much slower. The Earth takes a day to spin round. The Moon takes a month.
When the side of the moon that faces Earth (the same side of the moon always faces Earth) is fully bathed in sunlight. The Moon experiences day and night cycles, but it takes 28 days for the moon to complete a day/night cycle because of the Moon's relatively slow spin (which is what keeps the same side of the Moon facing Earth).
When the side of the moon that faces Earth (the same side of the moon always faces Earth) is fully bathed in sunlight. The Moon experiences day and night cycles, but it takes 28 days for the moon to complete a day/night cycle because of the Moon's relatively slow spin (which is what keeps the same side of the Moon facing Earth).
No. Tidal interactions with the moon are gradually slowing the rate of Earth's spin
It slow down the rotation of the earth due to friction of water motion acting on to earth surface. The earth spin is slowing down by about 1.5-2 milliseconds per century.
No, the Earth and the Moon revolve together around the Sun. (The Moon orbits the Earth and both orbit the Sun together.)
YES!!! However, the spin is very slow, much slower than the Earth. In the 1 month (28/29 days) that it orbits the Earth, it only rotates once. Consequently, people on Earth only see one face. It has been calculated that the Earth only sees 59% of the Moon's surface. The other 41% has always been hidden from the Earth.
The Earth. The Earth and Moon are bound together by gravity and the Earth's tides (caused by the Moon) are accelerating the Moon and slowing the spin of the Earth. This means that the Moon is slowly getting further and further away from Earth.
About a month