Answer:
Step-by-step explanation:
Density:
Density is equal to the mass of substance divided by its volume.
Units:
SI unit of density is Kg/m3.
Other units are given below,
g/cm3, g/mL , kg/L
Formula:
D=m/v
D= density
m=mass
V=volume
Symbol:
The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.
Given data:
mass of block = 12 g
volume of block = 6 mL
density of block = ?
Solution: (Q1)
d = m/ v
d = 12 g / 6 mL
d = 2 g/mL
The density of block is 2 g/mL.
Q = 2 Will it sink or float in the water?
The density of block is 2 g/mL. While the density of water is 1 g/mL. So the block will sink in the water because it is more denser than water. The object will float in the water if its density is less than the density of water.
Q = 3 Is the block more likely made of styrofoam or more likely made of metal?
The block is more likely made up of metal because its density is high and is sink in the water. While if it were made up of styrofoam its density must be less than the density of water and it will float.
Q = 4 Why?
The density of block is 2 g/mL. While the density of water is 1 g/mL. So the block will sink in the water because it is more denser than water. While if it were made up of styrofoam its density must be less than the density of water and it will float.