Gravitation
1. Objects
having density less than that of the liquid in which they are immersed, float
on the surface of the liquid. If the density of the object is more than the
density of the liquid in which it is immersed then it sinks in the liquid.
2. According
to Archimedes’ principle, when a body is partially or fully immersed in a
fluid, it experiences an up thrust which is equal to the weight of the fluid
displaced by the body.
Top Formulae:
1.
Newton’s Law of gravitation
2. Acceleration
due to gravity
3. Equations
of motion under free fall
i.
v = u + gt
ii.
s = u t + (½)at2
iii.
iii.
v2 = u2 + 2 g s
4. Weight
of an object W = m g
5. Pressure
= thrust / area
6. Density
= mass / volume
7.
Relative density = density of a substance / density of
water
