SimPhy supports setting up of various fields other than gravity.

• Gravity:

  The gravitational force on an object is calculated as
  Force = mass x gravity x gravityFactor

• Electrostatic field:

  Electrostatic field (in N/C)added to the world, apply force on object if and only if it has non zero charge and it is inside bounds of field.

• Magnetic field:

  The magnetic lorentz force on an object is calculated asForce = charge x speed x magnetic field  and is perpendicular to the velocity

• Buoyancy and drag:

  Buoyancy can be added to a region representing hypothetical liquid in that region. The density and viscosity of liquid can be changed while adding/editing field.