Mass, volume and density Flashcards
What is density
Density is the measure of an objects mass per unit of volume.
What units to we use for density
g/cm^3
kg/cm^3
What’s the equation for density
Density= mass/volume
p=m/v
What is volume
The amount of space an object takes up
What is volume measured in (regular objects)
Cm^3
m^3
equation for volume (regular objects)
volume= height x width x depth
what do we use when finding the volume of irregular objects
sides we cannot easily measure, must use Archimedes principles.
When an object is placed in water, the volume of water displaced is equal to the volume of the object.
how do we find the volume of irregular objects
volume= rise of water level
e.g.
=55-30=25ml
vol= 25cm^3
what is mass
The amount of matter in an object
what is mass measured in
g
kg
using a balance
what would happen if i had different sizes of the same object
volume increases
mass increases proportionality
density stays the same
