What effects does tidal friction have on earth? Tidal friction on the Earth
prevents the tidal bulge
, which is raised in Earth’s seas and crust by the Moon’s pull, from staying directly under the Moon.
What is tidal friction quizlet?
Tidal Friction:
Friction within an object that is
.
caused by a tidal force
(g-14). Tidal forces stretch the actual Earth, which creates tidal friction. Basically, the Moon’s gravity tries to keep the tidal bulges on the Earth-Moon line, but Earth’s rotation tries to move the bulges around with it.
How did tidal friction push the Moon away?
Some of the energy of the spinning Earth gets transferred to the tidal bulge via friction. This drives the bulge forward, keeping it ahead of the Moon
. The tidal bulge feeds a small amount of energy into the Moon, pushing it into a higher orbit like the faster, outside lanes of a test track.
How has tidal friction modified the orbits and spins of the Earth and moon?
The Moon is moving radially away from the Earth at 38 mm yr
− 1
, an effect attributed to tidal friction, which
slows down Earth rotation, hence increasing the Moon’s distance so as to conserve angular momentum of the Earth–Moon system
.
Does tidal power slows rotation of Earth?
Consuming tidal energy is actually taking, therefore reducing, the rotational energy of the Earth
, which decelerates the rotation speed.
When our Earth becomes tidally locked with the Moon, which of the following statements will be true? –
The Moon will always be visible only from one side of the Earth
.
You have correctly identified that the tidal forces are
transferring energy from the Earth to the Moon
. This energy causes the Moon’s orbit to get larger thus slowing it down.
The strength of tides varies considerably with many cycles identified by Wood (ref. 23, pp. 201.42–201.60).
Tides might influence temperature and weather by direct transport of heat
(8), although the very low amplitude of long-period tides (24) makes this seem unlikely.
After learning about the general strength and prevalence of lunar tides, students often asked me whether the Moon’s tidal forces can affect human behavior.
Yes, provided you had a very, very big head.
Tidal currents can interact with the overlying atmosphere, directly modifying surface stress and low-level winds
.
Short answer:
Technically it’s possible that the Earth and Moon could collide in the very distant future, but it’s very unlikely
. It’s certainly not going to happen while any of us are alive. Long answer: The Moon is in a stable orbit around Earth.
If the moon were half the distance away,
Earth’s rotation would slow even more, dragging out our days and nights
. If we were to survive the sudden earthquakes, volcanic eruptions, lengthening of days and nights, and higher tides, at least we’d get to see more frequent solar eclipses.
No, there is no frictional force opposing centrifugal force
. The shape of the earth is an oblate spheroid such that the surface of the earth, where the earth is flat (for instance: the surface of the ocean) is at right angles to the sum of the centrifugal force and the gravitational force.
Consequently, the line through the two bulges is tilted with respect to the Earth-Moon direction exerting torque between the Earth and the Moon. This torque boosts the Moon in its orbit and
slows the rotation of Earth
.
How do the tides slow the rotation of the Earth?
Tidal bulges generate drag forces between the Earth and its water
, slowing its rotation.
The major heating source of Earth and its moon is radioactive heating, but
the heating source on Io is tidal heating
.
Lucky for us, there’s no way the Earth will become tidally locked to the Sun any time soon. We’re far enough from the Sun that its gravitational pull doesn’t latch onto just one side. But
the Earth’s rotation is actually slowing down
.
Consuming tidal energy is actually taking, therefore reducing, the rotational energy of the Earth
, which decelerates the rotation speed.
The Moon raises tides on Earth. Because Earth rotates faster than the Moon orbits (24 hours vs. 27 days)
our planet forces the position of high-tide to occur ahead of where the moon is, not directly below the moon
(see diagram). Basically, Earth is pushing the high tide ahead of the Moon.
