Gravitational Potential

Revise gravitational fields, field strength and field lines.Understand that since a force must be exerted to move a mass in a g field then work must be done and if work is done energy is transferred.Define gravitational energy.Draw lines of equipotential for uniform and radial fields.Understand that field strength is the same as potential gradient.Use the area under the F-x graph to derive the formula V=Gm/r.

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