Gravitation and Orbits [IB Physics SL/HL]
This video explores the concepts of gravitation and orbits from Theme D of the IB Physics SL & HL courses. Newton's Universal Law of Gravitation is introduced and the concepts of gravitational field strength and gravitational force are defined and contrasted. The derivation of the formula for the velocity of a satellite in a circular orbit is also shown.
0:00 Introduction
0:24 Newton’s law of gravitation
1:55 Inverse square law
2:33 Gravitational fields
7:02 Orbital velocity
8:19 Summary
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