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Gravitational fields
Tailored to Pearson Edexcel 9PH0.
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Subtopics and study areas
- Apply Newton's law of gravitation and gravitational field-strength equations.
- Use gravitational potential and potential energy in radial fields.
- Connect gravitational attraction to circular orbital motion.
- Use Newton's inverse-square law for gravitational force.
- Calculate gravitational field strength around a spherical mass using g = GM/r².
- Relate circular orbital motion to gravitational force providing the inward resultant force.