- 2018.01.09: "i wish they didn't chose this stupid vid for my virtual online physics course, bad choice on my teachers part, its hard to learn when all i want to do is strangle this goof" grumpy old man - YouTube Comment (you can't please everybody)
Most Recent Video (2018.01.14)
Apparent Weightlessness Introduction (6:59)
Learn why astronauts in the International Space Station appear to have no weight. This is an AP Physics 1 topic.
0:01 What is necessary for an object to be completely weightless?
2:34 Determining the acceleration due to gravity on the International Space Station
3:41 Why astronauts appear to be weightless
4:55 Why the International Space Station does not fall to the Earth
5:37 Objects in orbit experience apparent weightlessness
5:56 Other examples of apparent weightlessness