density and pressure

Question 1

density equation

Answer 1

mass per unit volume. d=m/v

Question 2

Density and mass link

Answer 2

Objects from low density materials have low mass

Question 3

equation with units

Answer 3

density (kgm-3)= mass kg/ vol m3

Question 4

How to find volumes

Answer 4

sphere: 4/3 x pie x r3
cube: distance x 3
Cylinder: pie x r2 x length