Field Lines 

This program allows you to plot gravitational and electric field lines.  The gravitational field can be around a planet or a planet and its moon. Gravitational field strength is also shown as you move through the field. The electric field lines can be around a single charge or between two charges of the same or different nature.  Electric field strength is shown as you move through the fields. The similarities and differences between electric  and gravitational fields can be investigated. 


To download the program click  'Download'.


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