Question

(a) What are fluids ? Name two common fluids.
(b) State Archimedes' principle.
(c) When does an object float or sink when placed on the surface of a liquid ?

Answer 1

Fluids are those substance which can flow easily at room temperature
example are water , oil , glycerin , etc.


According to Archimedes principle
when an object is wholly or partially immersed in water it experiences a buoyant force which is equal to the weight of the water displaced by the object

If the density of the substance is higher than the liquid so it will sink
If the density is lower then it will float