LESSON 2

DETERMINING DENSITY

Density is defined as the mass per unit volume of a substance.

- Calculations are done by measuring the mass of an object and comparing this with its volume.

- Gram is the unit of measure for mass

- Cubic centimeter or milliliter is the unit of measure for volume

- Density of a substance is grams per cubic centimeter (g/cm3)

- Density of water is 1.0g/cm3

Density is a characteristic property of matter.

A characteristic property is a property that is independent of mass, volume, and shape.

Characteristics properties refers to substances.

The volume of a liquid will be measured using a graduated cylinder.

Irregular objects will be measure by displacement.

Measuring units of mass is done with electronic balances.

Mass per unit volume, or density, is the determining factor in floating and sinking.

Mass is a measure of quantity of matter in an object, and volume is a measure of the space it occupies.

Mass is not affected by shape.

Weight is a measure of force of gravity acting on an object and is measured in newtons.

Mass is a measure of the inertia of an object.