Air and Force:
* Air has mass: Air itself has weight and occupies space.
* Pressure differences create force: Air movement is fundamentally driven by pressure differences. When air pressure is higher on one side of an object than the other, it pushes the object in the direction of lower pressure.
* Force is required to move things: To make an object move, you need to apply a force. Air pressure differences create that force.
How Air Can "Move" an Object Into a Hole:
* Wind: Strong winds can blow objects into a hole. The force of the wind is what moves the object.
* Air pressure differences: If you create a difference in air pressure within a hole, the higher pressure air can push an object in. For example, imagine blowing into a straw with a small object at the end. The higher pressure air you exhale will force the object through the straw.
* Vacuum suction: A vacuum creates a low-pressure area. If you place an object over a vacuum opening, the higher air pressure outside will push the object into the low-pressure vacuum.
In summary:
While it might seem like air is magically "moving" an object into a hole, it's actually the force created by air pressure differences that does the work.
