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Magnetic reversals provide strong evidence for the process of seafloor spreading at the bottom of the ocean. As magma rises and solidifies at mid-ocean ridges, it records the Earth's magnetic field direction, which periodically reverses. This creates a pattern of magnetic stripes on either side of the ridge, demonstrating how new oceanic crust is formed and pushed away from the ridge over time. These patterns serve as key evidence for the theory of plate tectonics.
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What is the difference between magnetic track and magnetic heading followed by airplanes?
Magnetic track refers to the actual direction an airplane is traveling over the ground, while magnetic heading refers to the direction the airplane's nose is pointing based on the magnetic compass. The difference between the two is called the drift angle, which results from winds affecting the airplane's trajectory. Pilots use both magnetic track and heading information to navigate accurately.
Does a permanent magnet still work when the bottom of it is glued to wood?
Yes, a permanent magnet will still work when glued to wood. The magnetic field of the magnet will still extend beyond the wood, allowing it to interact with other magnetic materials. The only difference may be a slight decrease in the strength of the magnetic field due to the presence of the wood.
How can the top layer in a geologic sequence be older than the bottom layer?
In geology, the principle of superposition states that in an undisturbed sequence of sedimentary rocks, the oldest layers are at the bottom and the youngest at the top. However, geological processes such as folding, faulting, or erosion can disrupt this order. For instance, if a tectonic event causes older layers to be thrust over younger ones, the top layer can be older than the bottom layer. Additionally, sediment can be deposited in non-sequential layers due to various environmental factors, leading to apparent age reversals.
Where is the magnet in a fan?
The magnet in a fan is typically located inside the motor. It is used in conjunction with coils of wire to create a magnetic field that drives the rotation of the fan blades.
How do magnetic stripes on the sea floor prove the sea floors spreading?
ok so... over time, the magnetic poles kept changing directions. for example ur compass wuld suddenly turn the opposite direction. there was this type of rock(forgot the name) that always points the direction of the magnetic pole. this type of rock erupts from the bottom of the ocean floor. scientists found that the rocks at the ocean floor would change direction in order. like, one section of the rock would be pointing north, and one section would be pointing south, vice versa. they knew that since the rocks change directions, new ocean floor was forming and were pushing the continents away from each other. the sea was alos spreading. i used this 4 my hw u better not go 2 my middle school(chaparral)
What are paleomagnetism and magnetic field reversals?
Paleomagnetism refers to the strength and orientation of the earth's magnetic field at some remote past time. Magnetic field reversals are recorded in deep ocean bottom materials which show that at some ancient times the earth's magnetic poles have reversed, north pole becoming south pole and south pole becoming north pole.
Is the magnetic field of earth stronger near the middle of the earth or at the bottom of earth?
near both magnetic poles
Identify how magnetic symmetry can be used as evidence of sea floor spreading?
As the sea floor spreads the magnetic orientation in the rocks as they cooled is preserved. As the earth's magnetic field changes then a distinct pattern is imprinted in the rocks. If sea floor spreading is true then this unique pattern should be the same on both sides from the spreading point. Measurements of sea bottom rocks verify this symmetry is true. :)
Is the magnetic field of Earth stronger near the middle of the Earth (in Mexico) or at the bottom of Earth (in Antarctica)?
The magnetic field of Earth is stronger at the magnetic poles, which are closer to the bottom of the Earth near Antarctica, than at the equator or the middle of the Earth such as in Mexico. This is because the magnetic field lines converge towards the poles.
Why magnetic field lines are closer at the bottom?
Magnetic field lines are closer at the bottom of a magnet because the magnetic field strength is stronger in that region. This increase in field strength causes the field lines to compress closer together. The field lines spread out as they move away from the magnet, resulting in the characteristic pattern of magnetic field lines emerging from the poles and converging at the other side.
2005 Subaru Forester rear differential drain plug size?
15mm for top and bottom. Bottom one has a magnetic plug - check it for metal shavings.
How does a TV take advantage of magnetic forces?
A television system takes advantage of magnetic forces by using electromagnets. These magnets control the electron beams, causing them to scan top to bottom and left to right.
How can I create a magnetic pot for my indoor plants?
To create a magnetic pot for indoor plants, you can attach small magnets to the bottom of a lightweight pot using strong adhesive. This will allow you to easily hang the pot on a magnetic surface, such as a metal shelf or a magnetic board. Make sure the magnets are securely attached to prevent the pot from falling.
Is the magnetic field of earth stronger near the middle or the bottom of the earth?
If by "middle", you mean the center of the sphere (inside the core), then yes the magnetic density will be high, there, just as it is inside of a magnet. If you mean at the equator, then that is not the strongest place. If by "bottom", you mean the South Pole, the magnetic field density will be stronger at the poles (north and south) than any other place on the surface of the Earth.
What is the name given to the bottom half of the earth?
Since space does not have an up-down distinction, there isn't really a part that could be called the bottom. However when represented on maps with the magnetic South near the top, the "bottom" is known as the Southern Hemisphere.
Do gigantic huge big snakes live at the bottom of the sea?
No. They need to breathe. Unless you are talking about eels or them living on the surface, there is no evidence of giant snakes in the bottom of the ocean.
How can I make magnetic ink for checks?
To make magnetic ink for checks, you can mix iron oxide particles with a special type of ink that contains magnetic properties. This ink is used to print the numbers and symbols on the bottom of checks that can be read by magnetic scanners. It is important to use the correct type of ink and follow safety guidelines when handling iron oxide particles.
