P6 Molecules and Matter (just Density for EOY)

Question 1

density (+ its units)

Answer 1

mass per unit volume
mass (kg) / volume (m3) = density (kg/m3)

Question 2

measuring density of solid

Answer 2

measure mass using electronic balance (make sure it reads 0 before object is placed on it)

volume of a regular solid: use mm ruler, verner calipers, micrometer
volume of small irregular sold: lower it with a thread into a partly filled measuring cylinder - work out volume by rise in water level

Question 3

measuring density of liquid

Answer 3