A piece of wood that measures 3.0 cm by 6.0 cm by 4.0 cm has a mass of 80.0 grams. What the density of the wood? Would the piece of wood float in water?
The density is
The density of a substance can be calculated using:
Here we do not have the volume given, however we can calculate volume by multiplying given dimensions:
So the density is:
To answer the question stated in the last sentence we have to compare the calculated density of the piece of wood with the density of water.
Water has density of
Since the density of the wood is greater than the density of water, it will NOT float in the water.