Pressure:
Pressure is the amount of force acting per unit area. The symbol for it is p or P
• Pressure inside liquids are due to the random movement of the liquid molecules and the weight of the liquid. The pressure inside solids occurs only due to the weight of the solid.
• The liquid pressure acts on the sides of the liquid as well as the bottom. The pressure due to solids only appears at the bottom of the solid.
I will suggest the following videos by TED.Ed on www.youtube.com. Links are given below
https://www.youtube.com/watch?v=EkDhlzA-lwI
https://www.youtube.com/watch?v=VDf00z8sMFw
I hope you would find it helpful.
