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A magnet has a polarity, in that one end is the "north" and the other is the "south". Opposite poles attract but similar poles repell each other. You cannot make the north poles of two magnets stick together.
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What can reverse magnetic polarity make?
What can reverse magnetic polarity
What are the polarity of earth's north and south poles?
The magnetic polarity of the location we call 'Magnetic North' is a south pole, and the polarity of the location we call 'Magnetic South' is a north pole.
Do waves have magnetic polarity?
No, waves do not have magnetic polarity. Waves are disturbances or vibrations that propagate through a medium or space, and they do not possess magnetic properties. Magnetic polarity is a characteristic of magnetic materials such as magnets, where they have a north and south pole.
How is the polarity of Earth's magnetic field recorded in the sea floor?
The polarity of the Earth's magnetic field is recorded in igneous rocks, and reversals.
Describe how the polarity of earth's magnetic field is recorded in the sea-floor?
The polarity of the Earth's magnetic field is recorded in igneous rocks, and reversals.
What is the word for particles with reversed magnetic polarity?
a
What are particles with reversed magnetic polarity?
Antimatter
What must be true about the polarity of a compass needle that points Northwards geographically?
'Magnetic North' is the name of a location, or a direction, and has nothing to do with the magnetic polarity of that region. In fact, its magnetic polarity is a south pole, which accounts for why it attracts the north pole of a magnet or compass (unlike poles attract).
What are particles with reversed magnetic polarity called?
Antimatter
What is the name for particles with reversed magnetic polarity?
antimatter
Why does the compass point north in the southern hemisphere?
The direction of magnetic flux or lines of force is from north polarity to south polarity, and a compass needle will always align with that direction, wherever it is used. Since the magnetic polarity of the location we call Magnetic North is a south, a compass needle will point in that direction.
What is the pattern of magnetic polarity reversals?
In a geomagnetic reversal, the south and north magnetic poles flip locations. A magnetic pole reversal takes place every 450,000 years on average, but this is not regular. We are way overdue since the last reversal was 780,000 years ago. There is a pattern in the magnetic polarity of basaltic rocks on opposite sides of a mid-ocean ridge. Basalt contains tiny magnetic crystals that point to the location of the north magnetic pole at the time the lava cools. The rocks at the ridge have positive polarity, but on either side of the ridge the polarity is negative, indicating that those lavas cooled when the magnetic field was opposite of what it is today. On either side of the basalt with negative polarity are more rocks with positive polarity. This pattern continues on both sides of the mid-ocean ridge across the ocean basin. The pattern of magnetic polarity is one of the main lines of evidence for seafloor spreading, which is the mechanism for plate tectonics.
