A magnetic field is invisible — but a plotting compass can reveal it. Can you map the field around a bar magnet?
Advanced: Global magnet strength
Global strength
This slider multiplies each magnet's base strength. 0 = off, 1 = normal, 5 = five times
stronger.
How to Use:
Choose a magnet configuration from the buttons above
Drag the plotting compass around the simulation area
Drag the compass to a position and click to mark where the needle points. Repeat across the whole area to build up a map of readings
Once you've plotted enough points, click 'Draw Field Lines' and connect your points into smooth curved lines.
Click the drawing button again to exit drawing mode
Use "Clear All" to start over with a clean canvas
For each configuration: sketch your completed field pattern on your worksheet. Mark the direction of field lines with arrows — field lines always run from North to South outside the magnet.
Compare your attracting and repelling field patterns. Where are the field lines closest together? What does this tell you about field strength in those regions?