Weight and Buoyancy Experiment - No Effects of Motion Detected In Free Fall

A slinky will only stretch when there’s a force being applied. You can test this for yourself. You can not stretch the slinky without a force. This is something important to note as it will make the following experiment much easier to understand. When we have a bottle with water and it’s connected to the earth, we can experience weight and buoyancy, which are the effects of a force or motion. For example, something that’s more dense or heavier than the water by volume, like the slinky, will sink or appear to go down and something that’s less dense like the ping pong ball will get pushed to the top or float. If I glue the ping pong ball to the top of the slinky so it can be one unit, we can experience a density gradient. The more dense material at the bottom and the less dense at the top. Also, the fact that the slinky is being stretched shows that there’s a force present when connected to the earth. However, as soon as I release the bottle into free fall, the buoyant force of the