True for iron filing.
false
False.
True. when you heat a magnet you are supplying it with energy therefore the dipoles have enough energy to free themselves form their initial order.
True. Magnets typically attract materials that are magnetic, such as iron, tin, and cobalt.
The south pole of one magnet is attracted to the north pole of the other magnet.
False
It is true that materials that exert magnetic forces are considered magnets. This is the case since it shows they have magnetic field lines that may have been induced or were naturally present in the materials.
True AND False OR True evaluates to True. IT seems like it does not matter which is evaluated first as: (True AND False) OR True = False OR True = True True AND (False OR True) = True AND True = True But, it does matter as with False AND False OR True: (False AND False) OR True = False OR True = True False AND (False OR True) = False AND True = False and True OR False AND False: (True OR False) AND False = True AND False = False True OR (False AND False) = True OR False = True Evaluated left to right gives a different answer if the operators are reversed (as can be seen above), so AND and OR need an order of evaluation. AND can be replaced by multiply, OR by add, and BODMAS says multiply is evaluated before add; thus AND should be evaluated before OR - the C programming language follows this convention. This makes the original question: True AND False OR True = (True AND False) OR True = False OR True = True
No. Electric current is also attracted to magnets. To see this, hold a magnet near the screen of a TV set with a CRT (not an LCD or plasma TV), and move it around.
True. A proton, which has a positive charge, is attracted to an electron, which has a negative charge, due to the electromagnetic force. This attraction is fundamental to the structure of atoms, as protons are found in the nucleus while electrons orbit around it.
Currently, to my knowledge, nobody has discovered a monopole (magnet with a single pole), although this is something that is predicted by super string theory and the grand unification theory. So for now, in your everyday life, it is safe to say that a magnet always has two poles.
False. It is software.