physics

• pressure determines effect of a force on a surface
• pressure is measure in pascals (pa)
• pressure(pa) = force(n) / area(m^2)
• pressure in a liquid increases as depth increases
• pressure is due to weight of water
• liquid tightly packed so pressure is in all directions
• the deeper we go into a fluid, the greater the number of molecules pressing downwards
• pressure increases as depth increases as the particles at bottom have added weight of particles on top