water has a density of 1g/cm3 ; if 2 different pieces of the wood are put into water which will float and which will sink ?

Wood 'a' has a density of 1.19g cm3
Wood "b" has a density of .67 g/cm3
Explain your answer?

Most solids float if their density is less than that of the fluid. Therefore, the 0.67 piece of wood will float and the other one will sink.

Note: the reason I said "most" above, is that ships, which are made of steel, float and we know that the density of iron is much greater than that of water. The reason the ship floats is that it is constructed to displace enough water to make up for the much higher density of steel.

To determine whether wood 'a' and wood 'b' will float or sink in water, we need to compare their densities with the density of water.

The density of water is given as 1 g/cm³. If an object is less dense than water, it will float, and if it is more dense, it will sink.

Wood 'a' has a density of 1.19 g/cm³, which is higher than the density of water (1 g/cm³). Therefore, wood 'a' is more dense than water, and it will sink.

Wood 'b' has a density of 0.67 g/cm³, which is lower than the density of water (1 g/cm³). Therefore, wood 'b' is less dense than water, and it will float.

In summary:
- Wood 'a' with a density of 1.19 g/cm³ will sink in water.
- Wood 'b' with a density of 0.67 g/cm³ will float in water.