A plotting compass always lines up with the magnetic field where it sits. Drag the compass around the bar magnet and watch its red north-seeking end swing to follow the field. A marked point appears each round: predict which way the needle will point there, then place the compass to check. Switch on the field lines to see the full pattern, running from the north pole round to the south.
MissionPredict which way the compass needle points at the marked point P.Round 1Streak 0Best 0
Red end points:
Tip: you can drag the compass anywhere to explore the field.
needle (red end) pointsdrag to explore
field strength herelow
point P resultnot placed yet
A compass needle lines up with the field. Field lines run from N to S and crowd together where the field is strong.