Density

What is the meaning of density?

• Density is a city in a country

• Density is particles in a cylinder

• Density is the mass of matter per unit volume

• Density is the dense found in an item

What is the equation to find density:

• Density = Mass $\div$ volume

• Density = Mass x volume

• Density = Volume $\div$ Mass

• Density = force x volume

What equation can i use to find mass ?

• Mass = volume $\div$ density

• Mass = density x 10

• Mass = density x volume

• Mass = density $\div$ volume

How do you find volume using density and mass :

• Volume = mass x 10

• Volume = mass $\div$ density

• Volume = density x mass

• Volume = density $\div$ mass

The S.I. Unit for density is:

• kg/cm

• kg/cm²

• kg/m²

• kg/m³

If a parcel measuring 200cm x 400cm x 130cm and having a mass of 30kg. What is the density of this parcel in kg/m³

• 2.88 kg/m³

• 2.23 kg/m³

• 3.35 kg/m³

• 4.56 kg/m³

What is the mass of a box having a density of 805kg/m³ and a volume of 2m³ .

• 1610 g

• 165 kg

• 165 g

• 1610 kg

Which of the following will float on water?

• Rubber 1.34 g/cm³

• Corn Oil 0.93 g/cm³

• Glycerine 1.26 g/cm³

• Steel 7.81 g/cm³

A golden coloured cube is given to you. The person offers to sell it to you for €100 saying that it is pure gold. You use your physics book and see that the density of gold is 19.3 g/cm³. The cube measures 2cm each side and weighs 40g. What is the density of the actual cube and is it real gold?

• 19.5 g/cm³, yes real gold

• 5 g/cm³ , no not real gold

• 5 g/cm³, yes its gold

• 19 g/cm³, no not real gold

If an object of 3kg has a density of 19.5 kg/m³ and I half this object into two equal parts. What will the density be?

• 19.5 g/cm³

• 2.45 kg/m³

• 8. 75 kg/m³

• 19.5 kg/m³