1. If a piece of soft iron is placed in a magnetic field, it will get magnetized by influence or _______.   induction   electrification   force   Hint Half-n-half Clue   2. The arrow on a magnetic line of force is determined by the direction in which a free _______ pole would point in a magnetic field.   south   north   3. During magnetic induction, the end of an unmagnetized magnetic substance nearer to the pole of the inducing magnet acquires _______.   similar polarity   opposite polarity   no magnetism   Half-n-half Clue   4. The phenomenon due to which an unmagnetized magnetic substance behaves like a magnet due to the mere presence of another magnet (which is not actually in physical contact) is called   magnetic lines of force   magnetic field   magnetic induction   Half-n-half Clue   5. The preservation of the magnetism of magnets can be done by using magnetic _______.   lodestones   fields   keepers   Half-n-half Clue   6. It has been found that the earth steadily induces its own magnetic poles into a bar magnet kept in some place for a few weeks.   True   False   7. Magnetic lines of force attract each other.   True   False