Notes

1) Moment = force x distance / m =f x d
2) F1 x d1 = F2 x d2
3) Density = mass/ volume
4) Pressure = Force / Area
5) Pressure = height x density x gravity (Where, g = 10N/kg)
6) Volume = length x breadth x height
7) Area = length x breadth

8) The device used to measure atmospheric pressure is Barometer
9) As surface area increases, pressure decreases
10) As force increases, pressure increases
11) As depth increases, pressure increases
12) As density increases, pressure increases
13) As you go higher and higher, atmospheric pressure decreases
14) The unit to measure pressure is Pa or N/m 2 or N/cm 2
15) The unit to measure moment is Nm or Ncm
16) The unit to measure density is Kg/ m 3 or g/cm 3
17) Pressure in liquid does not depend upon shape or size of the
container.
18) Pressure exerted by air on earth’s surface is atmospheric
pressure
19) If the density of an object is greater than the density of water,
then that object will sink.
20) Pressure is defined as force acting on unit area.
21) Gas pressure is exerted by the molecules as the collide with
each other as well as the walls of the container

22) In liquid, the pressure is exerted by the force(collision)
between the liquid particles and the walls of the container