Gravitation

Copernican Revolution - different coordinate systems - Desmos

1. Gravitational force. Is gravity a weak force?

2. Circular orbits. Kepler's third law.

3. Kepler's laws for elliptical orbits.

4. Gravitational field. Definition and units. Vector field - arrows. Direction - field lines.

5. Gravitational field strength of spherical mass. Superposition of fields.

6. Superposition of the fields of two spherical masses.

7. Definition of gravitational potential. Potential of sphere. Equipotential lines.

8. Gravitational potential of two spherical masses. Superposition.

9. Gradient of gravitational potential.

10. Gravitational potential energy. Total energy for elliptical orbit.

11. Potential, Kinetic and Total energy for circular orbit.

12. Conservation of total energy. Escape velocity.

13. Miscellaneous.

Gravitational force between two masses-Phet    

Gravitational forces among three masses in a plane - Desmos

Speed  & radius - Desmos  

Motion under gravity - Phet 

Gravitational field of a sphere - Desmos

Two planets - Desmos  

Gravitational potential of spherical body - Desmos

 V(x) and g(x) for 3 planets - Desmos