Revise smart, understand Better

Which of the following objects would float in water?

An object with a density of 2.0 g/cm³.

An object with a density of 1.2 g/cm³.

An object with a density of 0.8 g/cm³.

An object with a density of 1.5 g/cm³.

Which of the following is the correct method for measuring the density of an irregularly shaped object?

By submerging it in a liquid and measuring the displacement.

By measuring its mass and dividing by the volume of a sphere.

By calculating its mass and comparing to a reference.

By measuring its mass and dividing by the volume of a cube.

How would you measure the volume of an irregularly shaped object to calculate its density?

Use a scale to measure the object's height.

Use a ruler to measure its dimensions.

Weigh the object in air and water.

Submerge it in water and measure the displaced volume.

Which of the following materials has the highest density?

Water.

Wood.

Air.

Iron.

What is the definition of density?

Volume per unit mass.

Force per unit volume.

Mass per unit volume.

Weight per unit volume.