0
Reasons for Earth magnetic north poles being mapped and why they need to be kept up to date is?
Wiki User
∙ 7y ago
There are no "magnetic north poles", only one. (There is also a magnetic south pole.)The reason is that the magnetic poles change over time.
Wiki User
∙ 7y ago
Add your answer:
Earn +20 pts
On Earth what's being investigated to contain fusion reactions?
magnetic confinement inertial confinement
What does Earth's magnetic field protect us from and how?
the earths magnetic field is the only reason that were alive right now the reason being is the suns heat rays are very powerful and very hot if the magnetic field would be gone everything on earth would vanish into ashes.
What is earth being magnetised to to cause all this world devestation?
The Earth's magnetic field does not cause devastation. Disasters are caused by geologic forces, atmospheric forces, human acitivity and interactions between these. The magnetic field does not play a role. The magnetic field of Earth is the result of convection in the outer core of the planet, which is composed of molten iron and nickel, coupled with the Earth's rotation.
How are isobars formed?
They are not formed. They are used by being mapped out.
Phenomenon of the Earth's magnetic pole being in different locations in the past?
There are two phenomena:-polar wanderingmagnetic reversals
Does a compass work best when close to magnet?
No. Being near a magnet (or magnetic field) completely puts off the compass as the compass is influenced by it and will not align with the Earth's natural magnetic field.
When does the north pole become the south pole and the south pole become the north pole?
Answer The answer is no, of course not! It is the magnetic polarity of the earth that is being flipped, not the locations of Magnetic North and Magnetic South. Remember, 'Magnetic North' and 'Magnetic South' are locations, not magnetic poles. So even if their magnetic polarities flip, the names of the locations won't ever change! All that would happen is that the magnetic field would reverse, and your compass would point to Magnetic South instead of Magnetic North.Think of it this way, if the magnetic polarity of the earth flips, you wouldn't swap the names 'Arctic' and 'Antarctic'! So, why would you swap the names 'Magnetic North' and 'Magnetic South'!!!!!
What properties of iron bearing minerals on the seafloor support the theory of seafloor spreading?
iron bearing minerals can record Earth's magnetic field direction. when Earth's magnetic field reverses, newly formed iron bearing minerals will record the magnetic reversal. magnetic reversals show new rock being formed at mid-ocean ridges. This helped explain how the crust could move
What is the effect of the movement in the outer core on the earth?
Currents in the outer core are thought to be responsible for the Earth's magnetic field, which prevents the atmosphere from being stripped away by solar particles.
Which of the following are being investigated to contain fusion reactions on earth?
magnetic confinement inertial confinement
Which aspect of magnetic reversal provides evidence of continental drift?
Periodically, the magnetic field of the earth reverses polarity. The direction of the magnetic field is recorded in the magnetic properties of rocks when they are erupted. Rocks are being continuously added at sea floor spreading regions, and thus the magnetic reversals are recorded as pairs of parallel 'stripes' alongside the mid ocean spreading ridge.
How does the suns magnet field affect the Earth?
The sun produces energetic and charged particles and blasts them in all directions (solar winds). These charged particles can get trapped when they are near the earth's magnetic field. With the grace of this magnetic field, we are all shielded from being irreversible harmed. See the picture in the related link for a visualization of how the magnetic field gets distorted by solar winds. ============================
