A Theory of Why
In our last series of investigations, we predicted what would happen if we placed a closed syringe inside a vacuum chamber and sucked out half the air from the chamber. Follow the steps below to see what would happen.
The plunger in the syringe moves from 15 up to 30. And here is how we could have used our observations about air particle density to predict that this would happen:
Great. So now we know enough about air particle density to accurately predict that the plunger would move from 15 up to 30. But how and why does the plunger do it? What physically causes the plunger to move when the air particle density around the syringe is lower than the air particle density inside the syringe?