Which do you think would have the greater volume and mass?

1 kg of feathers 1 kg of stoneOR

Objectives• The students should be able :1. To conclude that density is one of the

properties of matter2. To analyze the effect of mass and volume

to the density of a matter3. To determine the density of a matter4. To apply the concept of density in daily

Density is defined as mass per unit volume. It is a measure of how tightly packed and how heavy the molecules are in an object. Density is the amount of matter within a certain volume.

Proof that water and ice have different densities

To find the Density

Measured the volume of liquid

Volume of water = 720 ml

Measured the volume of stone

Measured the mass of stone

To find the density1- Find the mass of

the object

2- Find the volume of the object

3- Divide Density = Mass

Volume

Units for density g/cm3 or g/ml

Formula: m = mass V= volume D = density

m= D x V V = m / D D = m/ V

1) Find the mass of the object2) Find the volume of the object3) Density = Mass : Volume

To find density:

Example:

If the mass of an object is 35 g and it takes up 7 cm3 of space, calculate the density !

1) Find the mass of the object2) Find the volume of the object3) Density = Mass : Volume

To find density:

Set up your density problems like this:Given: Mass = 35 g

Volume = 7 cm3

Unknown: Density (g/ cm3)

Formula: Density = Mass : Volume

= 35 g : 7 cm3

= 5 g/cm3

Ex. If the mass of an object is 35 g and it takes up 7 cm3 of space, calculate the density !

• The density of matter is denoted with ρ .• The density is defined as the ratio of mass

and volume• Equation of density is :

Where : ρ = density ( kg/m3)m = mass ( kg )V = volume (m3)

The layer sequence based on its density

Conclusions

The density is not influenced by the mass and volume of the matter

The same matters have the same density too. Different matters have different density either The density is defined as the ratio of mass and

volume Equation of density is :

Which do you think would have the greater volume and mass?

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Transcript of Which do you think would have the greater volume and mass?

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