The public video lectures just cover the astronomy content from the Astronomy Notes textbook. The public lectures do not include the material that is for the astronomy class such as how to use the class Canvas, lecture outlines in the Student Guide, exam review documents, etc. Students in the Bakersfield College astronomy classes should use the astronomy class lecture videos posted in the class Canvas to get that class-specific content.
The video lectures are grouped together in the Newton's Law of Gravity Public YouTube playlist. Here are the individual videos for gravity and orbits:
Video 1: (for webpages #1 to #3) This video is about Newton's three laws of motion and the universal law of gravity. The textbook goes into a bit more of the philosophy.
Video 2: (for webpages #4 to #7) This video is about details of the law of gravity and how things move in a gravity field. It covers the difference between mass and weight, the inverse square law nature of gravity, and the equal acceleration of falling/orbiting objects and weightlessness. The textbook goes into a bit more of the philosophy.
Video 3: (for webpages #8 to #10) This video is about orbits and tides. It covers how gravity changes the orbital velocity and Kepler's third law. It ends with a description of how tides are due to differential gravity acting on an object, when high tide occurs for the different moon phases, and the slowing down of the Earth's spin while the moon moves away.
last updated: June 24, 2022