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What evidence is there that the earths magnetic fields move?
Sarayoyoyo
Ancient pottery shows movement of the earth's magnetic field. Firing the pottery fixes the ambient magnetic field in the fired pottery.
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∙ 13y ago
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How do earths magnetic pole reversals provide evidence for tectonics?
rocks get older as you move away from ocean ridges
How do earths magnetic pole reversals provide evidence for plate tectonics?
Magnetic stripes can be seen as you move away from ocean ridges.
The strength of electric and magnetic fields remains constant as you move away from the source of the electric and magnetic fields?
yes
Can the earths magnetic field move?
Yes it can reverse from North to South
How do magnetic stripes show Earth's history of magnetic fields?
As you move away from an ocean ridge, the rocks get older.
What do the earths magnetic poles move around?
This happens about once every 50 to 100 thousand years and is called a magnetic reversal.It would appear that the self generated magnetic fields formed by rotating bodies all undergo pole reversals. For instance the Sun does this about every 11 years.
How is electricity used to move a car?
Electricity can create magnetic fields. A magnetic field will attract or repel another magnetic field. That principle is used in the manufacture of electric motors. Magnetic fields are created in both an armature and an outside winding. When the magnetic fields are opposite, the armature tries to turn so that it is in line with the outside winding. Then the magnetic field changes polarity and the armature continues in the same direction, pushing the magnetic fields away. The process continues, repeatedly and quite rapidly to make an electric motor armature turn. The armature can be connected to a drive shaft or even directly to a wheel to make the vehicle move.
Why is it hard to read a compass when standing at one of the earths poles?
Because the earths magnetic poles move around from year to year, and even day to day.
Do earths magnetic poles stay where they are?
No, they move slowly. The North Magnetic Pole, for example, is currently drifting a little west of north at about 40 km/year.
Electric currents cause in magnetic fields to move?
coils answer for aplus chris Crosby class of 2013
What do electromagnetic consist of?
they consists of vibrating electric and magnetic fields that move through space at the speed of light.
What consists of vibrating electric and magnetic fields that move through space at the speed of light?
an electromagnetic wave
