what is the associative properties of earth being a magnet?

Answer 1

Our planet's magnetic field forms due to our planet's spin. Were our planet to have no spin to it, then it would have no magnetic field. The reason for the magnetic lines forming is found in an increase of energy as one moves from either pole of our planet toward its equator. This energy is evidenced in the Coriolis Effect, which effect causes winds and waters to move in opposite directions in either hemisphere.

Were you to cut a styrofoam sphere in half, thus forming two hemispheres, and mark the inside face of each with an arrow showing the direction of the mass spin, you would notice that one hemisphere mass could not directly replace that of the other. The arrows on the face of the hemispheres are pointing in opposite directions, if one is sought to directly replace one with the other.

What this evidences, is that as energy of rotation increases from either pole to the equator, the two forces are moving opposite each other in order to move in the same direction within a sphere. When these forces meet at the plane of our planet's equator, they meet in a plasma area (where electrons are no longer associated to individual atoms and so are free to move by themselves). When there is a shearing action through a plasma, an electrical field is generated, and then the magnetic field forms at a right angle to the electrical one. Which is why we have north and south poles.

http://360.yahoo.com/noddarc there is a short writing concerning "Magnetism and Gravity" that should be of interest to you.

Answer 2

The earth is round as a ball with the North Pole at the top and South Pole at the bottom. The north magnetic pole of the earth exerts magnetic force vertically downwards and the South Pole vertically upwards. The strength of the geomagnetic field is ½ gauss.

The earth spins around an imaginary line that connects the geographic North Pole and South Pole.

Near each of these poles the earth also has a magnetic pole. The magnetic poles act like ends of a magnet. The magnetic North Pole is near Ellef Ringnes Island in Northern Canada about 1400 km from the North Pole. The south magnetic pole is off the coast of Wilkes Land — a part of Antarctica — about 2750 km from South Pole.

The earth is not perfectly round but slightly flat at the poles. The diameter of the earth measured from pole to pole is shorter than the diameter at the equator. The magnetic property of the earth is called gravity. Gravity is the force with which the objects are attracted towards the earth. It is because of this property, the moon revolves around the earth.

The magnetism of the earth is similar to that which surrounds a coil of wire when electricity flows through it. Scientists believe that the earth's magnetism comes from circulation of molten rock in the earth's outer core.

The motion of electric charges in the liquid outer core produces geomagnetic field. The earth's magnetic field extends into space beyond the atmosphere called magnetosphere.

The magnetosphere interacts with the flow of charged particles from the sun called the solar wind. This interaction produces displays of light called auroras and a zone of charged particles around the earth known as the Van Allen Belts.

The belts surround the earth are like doughnuts. The inner belt extends from about 1000 to 1500 kilometres above the earth. The outer belt reaches from about 15,000 to 25,000 kilometres. The earth's magnetic field traps such particles and directs them toward the magnetic poles.

These trapped particles spiral along a system of imaginary lines curve from the north magnetic pole. The inner belt traps particles set free from the earth's atmosphere by cosmic rays. The outer belt acquires particles from solar system — a continuous stream of charged particles from the sun and solar flares leading to magnetic storms. The strong fluctuation in the Earth's magnetic field is called magnetic storm. The overall level of magnetic storm activity varies with the recurring 11-year solar activity cycle.

The increased magnetic field of the sun not only causes magnetic storms but also shields the earth from high energy cosmic rays produced by exploding stars called supernova.

The decrease in these cosmic rays bombarding the earth is known as the Forbush effect.

Answer 3

the first one (5+4) +6=5+(4+6)

Answer 4

if earth is magnet then iron is magnetisased if irepon is a magnet then other stuff also
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Answer 5

it is so because the outer core of the earth has iron in molten or solid state depending on the pressure and temperature.