BRAINCAKEGravitational Field Strength - g.
Newton's law of gravitation can be applied to the gravitational field strength g = F/m.
For a point mass in the gravitational field of a spherical planet, a distance r > R (radius of the sphere):
g = GM/r2
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Key terms in this lesson
- inverse square law
- A relationship in which a quantity decreases in proportion to the square of the distance from its source.
More in Gravitational Fields
- Gravitational Potential.
- Equipotentials.
- The potential gradient.
- Newton's Law of Gravitation.
- Gravitational Potential.
- Potential Gradients
- Area Under a Force vs Distance Graph
- Satellites
All 14 lessons in Gravitational Fields · All Edexcel A-level Physics topics