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Magnetic lines of force form closed loops. They can be thought of as emerging from the north pole of the magnet, looping around to the south pole, and then re-entering the magnet to return to the north pole. So they are continuous.
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Why are the poles the strongest part of a magnet?
Ever notice how a magnet works? Oh, sure, it picks up paper clips or tacks, but what are the paper clips or tacks doing? What they are doing is trying to get "into the magnetic field" of the magnet. The magnetic won't really pick them up very well along its side, will it? Nope. You see that now. But it picks stuff well on the ends. Here's the scoop. The magnet has magnetic lines of force running through it (inside it), and these lines of force emerge from one pole (or end), curve around the body of the magnet, and re-enter the magnet at the other pole (or end). The density of the magnetic field outside the magnet is greatest at the poles ('cause that's where the lines of force leave and return). The lines of force will always do this (leave a pole, go around, and go back in the other pole), but the lines of force pass through air around the magnet. They'd rather not do that if they have a choice. They'd rather pass through something that will "conduct" the magnetic lines of force. Like a paper clip. Or a tack. Or a lot of them. Iron filings will work, too. Any ferromagnetic material. Ferromagnetic materials that the magnet acts on will "get into the lines of force" if those materials (tacks, paper clips or whatever) can move. That's why you see the "arrangements" of materials that the magnet has picked up. That's why the materials hang around at the poles (the ends) of the magnet. They want to get into the magnetic flux lines, and want to get into as many as they can.
Do magnetic field lines ever cross each other at any point?
Not if they come from the same source.
What direction does the needle on a compass point when a horseshoe magnet is put beside it?
The direction of the needle will remain unchanged. This is due to magnetic forces, the needle will remain in line with the lines of magnetic force which flow between the north and south poles.
Is the water cycle continuous?
Have you ever looked up the definition of cycle?
Do Lines Of Latitude Ever Intersect One Another?
No
Do magnetic field lines ever intersect?
yes
What is the invisible force around a magnet called?
Have you ever seen a magnet? Did you see the field? There you go. While you can't see the field itself directly, you can see the effects of the field if you use iron filings or something like that; they'll line up with the magnetic field lines
Why are the poles the strongest part of a magnet?
Ever notice how a magnet works? Oh, sure, it picks up paper clips or tacks, but what are the paper clips or tacks doing? What they are doing is trying to get "into the magnetic field" of the magnet. The magnetic won't really pick them up very well along its side, will it? Nope. You see that now. But it picks stuff well on the ends. Here's the scoop. The magnet has magnetic lines of force running through it (inside it), and these lines of force emerge from one pole (or end), curve around the body of the magnet, and re-enter the magnet at the other pole (or end). The density of the magnetic field outside the magnet is greatest at the poles ('cause that's where the lines of force leave and return). The lines of force will always do this (leave a pole, go around, and go back in the other pole), but the lines of force pass through air around the magnet. They'd rather not do that if they have a choice. They'd rather pass through something that will "conduct" the magnetic lines of force. Like a paper clip. Or a tack. Or a lot of them. Iron filings will work, too. Any ferromagnetic material. Ferromagnetic materials that the magnet acts on will "get into the lines of force" if those materials (tacks, paper clips or whatever) can move. That's why you see the "arrangements" of materials that the magnet has picked up. That's why the materials hang around at the poles (the ends) of the magnet. They want to get into the magnetic flux lines, and want to get into as many as they can.
Do magnetic field lines ever cross each other at any point?
Not if they come from the same source.
What direction does the needle on a compass point when a horseshoe magnet is put beside it?
The direction of the needle will remain unchanged. This is due to magnetic forces, the needle will remain in line with the lines of magnetic force which flow between the north and south poles.
Do lines of force ever cross?
No. That would mean that the force vector at some point (the point where the lines cross) goes in two directions at the same time - doesn't make much sense.
When the magnetic fields of two or more magnet overlap what is the result?
They will combine to make a single magnetic field.
Will perpendicula lines ever touch?
Yes but parallel lines wont ever touch.
Do parallel lines ever meet?
Parallel lines never ever meet with each other
Why do two magnetic lines never intersect each other?
It is important to realize that magnetic lines do not really exist! They are a tool to visualize the magnetic field, but the field is continuous and does not exist solely inside lines. The direction of the lines gives the direction of the magnetic field, the density of lines, its strength. This also explains why no two field lines can ever intersect; a field line carries information about the direction of the magnetic field, if they would intersect an ambiguity would arise about the direction (not to mention a field of apparent infinite strength since the density would be infinite at the point of crossing). The field lines are almost never used in explicit calculations; instead one uses a vector, an entity which contains information about the magnitude and direction of a field in every point in space and time. Adding two magnetic fields is then easy; just add the vectors of both fields in every point in space (and time). You can use the resulting vector field to draw field lines again if you want. An easy way to imagine what would happen to field lines when they might intersect is to look at them as being such vectors. Imagine you have one field line pointing to the right, and another one pointing up. The result of adding would be a field line pointing somewhere in the up-right direction (the exact direction depending on the relative magnitudes of the fields). If the fields are equal in magnitude but opposite in direction they would cancel; the field line disappears. But this is to be expected! The magnetic fields canceled each other in that point! One has to take care with this analogy however; as for field lines the measure of magnitude is their density; which is an undefined thing if you are considering just one field line per field. For a vector however, the measure of magnitude is its length. Therefore adding two field lines of the same magnitude and pointing in the same direction would result in a vector of twice the length, but in field line language you would have to double the density at that point. This is one of the reasons field lines are used for visualization but not calculation. By the way, all these things apply to other fields as well. Electric fields can also be represented by field lines, and they as well cannot intersect (for the same reasons). Electric field lines, however, are not necessarily closed loops like magnetic field lines (this has to do with the non-existence of magnetic monopoles).
Is the water cycle continuous?
Have you ever looked up the definition of cycle?
Has the magnetic field of the ever flipped?
Yes, the magnetic field of the earth has flipped. The evidence is in fired pottery in historical times.
