Gravitational field lines for a point mass and a uniform gravitational field
A body covers a very large distance as compared to its size, so, to study its motion, its size or dimensions can be neglected
Gravitational field lines around a uniform sphere are identical to those on a point mass
Always label the arrows on the field lines! Gravitational forces are attractive only. Remember:
Electric field lines point away from a positive charge and point towards a negative charge
The electric field between two parallel plates is directed from the positive to the negative plate. A uniform E field has equally spaced field lines
Sketch the electric field lines between the two point charges in the diagram below.
Electric field lines around point charges have arrows which point radially outwards for positive charges and radially inwards for negative charges
Always label the arrows on the field lines! The lines must also touch the surface of the source charge or plates.
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