2nd year of post-compulsory secondary education
Gravitational fields
José Luis San Emeterio
 GRAVF 
Print
Historical background
Freely falling bodies
Two theories of the universe
Kepler's laws
Conclusions
The force of gravity
Newton's law
The superposition of forces
Angular momentum and central force
Conclusions
Field intensity
The concept of field intensity
Variations according to position
Conclusions
Energy in the gravitational field
Gravitational potential energy
Equipotential surfaces and lines of force
Conclusions
Some consequences of the theory
Explanation of the tides
The movement of artificial satellites
Coherence of galaxies
Conclusions
Evaluation