đź’ˇPhysics

Applicable for A-Level, IB, DSE, AP-Level Exams

Particle Physics    Quantum Physics    Waves    Optics    Mechanics    Materials    Electricity    Circular Motion    Simple Harmonic Motion    Thermal Physics    Gravitational Fields    Electric Fields    Capacitors    Magnetic Fields    Electromagnetic Induction    Radioactivity    Nuclear Energy    Discovery of the Electron    Wave-Particle Duality    Special Relativity   

Gravitational Fields

Gravitational Field Strength & Gravitational Potential

Gravitational field strength is the force unit mass in a gravitational field. Gravitational potential is the work done per unit mass to move an object from infinity to that point. Please note that calculus derivations are only provided for interest.


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Newton's Law of Gravitation and Planetary Fields

Newton's Law of Gravitation states that the force is poportional to the product of the masses and inversely porportional to the square of the distance. Please note that calculus derivations are only included for further interest and are not tested in various physics exam boards.


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Orbits of Planets and Satellites

The total energy for an orbiting circular satellite is constant. A synchronous orbit is when an orbiting object has an orbital period equal to the rotational period of the object it is orbiting. Geostationary orbits are in the same plane of the equator and have a orbital time period of 24 hours.


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Gravitational and Electric Fields Summary

Gravitational and electric fields are similar and can be compared together. Diagram credited from ScienceShorts YouTube channel.


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