density

Density

Density tells you how “packed” something is.

Heavy but small

high density

Light but big

low density

distance equation

d = vt ( speed x time)

rearranged distance formula

s = d / t

Required Practical: Density of Irregular Object

Measure mass using balance.

• Fill displacement (Eureka) can with water right under the spout.
  place a cylinder right under the spout

• Place object in water.

• the volume of the water that gets displaced will be equal to the volume of the irregular object ( 1 ml = 1 cm cube )

• Follow the density equation with the volume and mass to find it

regular object

Measure dimensions and calculate volume using formula.

density of a liquid

• Measure empty measuring cylinder mass.

• Pour in liquid.

• Measure new mass.

• Subtract to find mass of liquid.

• Read volume from measuring cylinder.

• Use density formula.

density formula

ρ= m / v

rearranged density formula (volume)

v = d / m

rearranged density formula (mass)

m = d x v

density of water

1 g = 1 cm cube