Published on: Mar 4, 2016
Transcripts - Pressure for
Have you ever dived deep into the water? What can you feel in your ears? It’s pressure!
Imagine that we all live in an ocean of air…
Atmospheric pressure isthe weight of the gases at any point in the Earth.1) Atmosphericpressure at sea level is higher than at the mountain.
2) Atmospheric pressure actsperpendicularlyin all directions.
Why this house is not squashed by the pressure? 3) There is a balance between all the forces.
Why pressure cookers have a mechanism to expel the vapour caused by the pressure?