1. Magnetic lines of force intersect each other at right angles.   True   False   2. Magnetic lines of force travel from _______ outside the magnet.   north to south   south to north   3. The arrow on a magnetic line of force is determined by the direction in which a free _______ pole would point in a magnetic field.   north   south   4. The space around a magnet where its magnetic power (influence) can be detected is called the _______.   magnetic field   magnetic keeper   magnetic line of force   Hint Half-n-half Clue   5. The preservation of the magnetism of magnets can be done by using magnetic _______.   keepers   lodestones   fields   Half-n-half Clue   6. The soft iron pieces placed across the poles of a magnet to prevent loss of magnetism are commonly called _______.   magnetic keepers   magnetic meridians   magnetic fields   Half-n-half Clue   7. Magnetic materials have millions of regions called _______, each of which acts as a tiny magnet.   domains   fields   lines   Half-n-half Clue