Universal gravitation
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Episode of Series “PSSC physics” Defines the law of universal gravitation by visualising a solar system of one star and one planet. Demonstrates the kinematics and dynamics of planetary motion. Uses a digital computer to display satellite orbits. Suitable for upper secondary level.
Credits
- Directed by
- Jack Churchill
Complete catalog record
Subject: derives the law of universal gravitation by using imaginary ‘Planet X’ that is the only planet of a single star. Describes the process by which this law was developed. Presents the concept that motion is relative to point of view and demonstrates this through the motion of tow connected frictionless pucks of different masses. The kinematics and dynamics of planetary motion are demonstrated using a large turntable as a model of the solar system. Uses a digital computer and oscilloscope to show why the orbits are elliptical and that the ratio of the average distance covered to the time squared is constant. Relates these discoveries about ‘Planet X’ to the earth and credits Newton with our laws of gravitation. Demonstrations by J.N.P. Hume and D.G. Ivey, University of Toronto.
Shots: scientists doing demos, experiments, pointing to blackboards. Derives the law of universal gravitation by imagining a solar system of one star and one planet. The kinematics and dynamics of planetary motion are demonstrated with models. Satellite orbits are displayed from the digital computer.
Shots: scientists doing demos, experiments, pointing to blackboards. Derives the law of universal gravitation by imagining a solar system of one star and one planet. The kinematics and dynamics of planetary motion are demonstrated with models. Satellite orbits are displayed from the digital computer.
More in PSSC Physics Films Series
- Crystals 1958
- Time and Clocks 1958
- Coulomb's Law 1959
- Electric Fields 1959
- Electric Lines Of Force 1959
- Electrons In A Uniform Magnetic Field 1959
- Elliptic Orbits 1959
- Forces 1959
- Pressure of Light 1959
- Simple Waves 1959
- Universal gravitation 1959
- Coulomb Force Constant 1960
- Definite And Multiple Proportions 1960
- Deflecting Forces 1960
- Energy And Work 1960
- Frames of Reference 1960
- Photons 1960
- Short Time Intervals 1960
- Speed Of Light 1960
- Straight Line Kinematics 1960
- Counting Electrical Charges In Motion 1961
- Elementary Charges And Transfer Of Kinetic Energy 1961
- Free Fall And Projectile Motion - Falling Bodies 1961
- Periodic Motion 1961
- Random Events 1961
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Source: Wikidata · Original permalink · Record added 2026-01-23 04:26:48