If you were to cut a small permanent bar magnet in half, a) one piece would be a magnetic north pole and the other piece would be a magnetic south pole b) neither piece would be magnetic c) each piece would itself be a smaller bar magnet with both magnetic north and south poles d) each piece would contain magnetic north and south poles, but the intensity of the poles may not be the same 2. which of the following is an accurate statement: a) magnetic field lines originate and terminate at north and south poles respectively b) a magnetic field, by definition, is tangent to the direction of the magnetic force on a moving charge at a given point in space -c) the magnetic force on a moving charge does not change its energy d) the magnetic force on a current-carrying wire is greatest when the wire is parallel to the magnetic field 3. the earth's northern magnetic pole acts like a) the north pole of a magnet b) the south pole of a magnet c) it has a positive charge d) it has a negative charge 4. a square loop of wire carrying a current in a clockwise direction lies in the plane of the paper. the magnetic field inside the loop is directed: a) out of the paper everywhere b) into the paper everywhere c) into the paper near the wire, out of the paper elsewhere d) out of the paper near the wire, into the paper elsewhere 5. a wire carrying a current to the right in the plane of the paper lies in a magnetic field perpendicular to the paper. the magnetic force on the wire is n the direction: a) toward the top of the paper b) toward the bottom of the paper c) out of the paper ~ d) need more information