Measurement Quiz-1 - Density

Which of the following best defines density?

• The total space an object fills.

• The force of gravity on an object.

• The mass of a substance present in a unit of volume.

• The 'heaviness' of an object regardless of its size.

You are presented with 1 kg of cotton and a 1 kg iron weight. Which statement is correct?

• The iron is heavier than the cotton.

• The cotton is heavier than the iron.

• They have the same mass.

• They have the same density.

What does density measure?

• The volume of a substance.

• The compactness of matter in a substance.

• The weight of a substance.

• The shape of a substance.

The image shows two objects, A and B, of the same volume. Object A has more particles packed into it than Object B. What can be concluded?

• Object A is less dense than Object B.

• The compactness of particles is the same in both objects.

• Object A has a higher density than Object B.

• Object B has more mass than Object A.

What is the correct mathematical formula for calculating density?

• Density(D)=Mass(M)×Volume(V)

• Density(D)=Mass(M)/Volume(V)

• Density(D)=Volume(V)/Mass(M)

• Density(D)=Mass(M)+Volume(V)

If a large wooden block is cut into two smaller blocks, what happens to the density of the wood?

• The density of each piece is halved.

• The density of each piece is doubled.

• The density of each piece remains the same as the original block.

• The density becomes zero.

What is the standard SI unit for density?

• g/cm³

• kg⋅m

• kg/m³

• g/L

How is the density of a regularly shaped solid, such as a cuboid, determined?

• Measure the volume with a scale and calculate the mass with a formula.

• Measure the mass using a balance and calculate the volume using standard formulae for its shape.

• Submerge it in water to find the mass.

• It is impossible to find the density of a regular solid.

A metal rod has a mass of 1800 kg and occupies a volume of 0.9 m³. What is the density of the metal?

• 2000 kg/m³

• 1600 kg/m³

• 1980 kg/m³

• 1800 kg/m³

A container holds 1.5 kg of sunflower oil. The oil has a density of 0.92 g/cm³. What is the volume of the sunflower oil to the nearest cm³?

• 1630 cm³

• 1380 cm³

• 1620 cm³

• 1350 cm³