Question

can you tell if a substance will float or sink if you only know its specific gravity? explain

Answer 1

Specific gravity of an object- is defined as the ratio of the density of the object to the density of the water .

If the specific gravity of an object is less than one,the object will float,because the density of the object is lesser than that of water(read the definition carefully)

If the specific gravity of an object is more than one ,the object will sink,because the density of the object is more than that of water

If the specific gravity of an object is equal to one the object will neither sink nor float ,since density of the object and water are equal

Hence specific gravity alone is sufficient to say whether an object will sink or float