Density Measurement | MCQs

Explanation

The mass per unit volume of a substance is called density (density = mass/volume).

• The formula of Density is: D=m/v
• ****
• Here D is density,
• M is mass &
• V is Volume.
• Density is commonly expressed in units of grams per cubic centimeter.
• The standard units are kg/m³

Explanation

• When the pressure on a gas increases, the molecules are forced closer together, resulting in a higher density.
• This is because the volume of the gas decreases as the pressure increases, causing the molecules to be more concentrated.