Density and Pressure

This set of flashcards covers key terminology and concepts related to density and pressure, including definitions, calculations, and important principles.

Density

The mass per unit volume of a material.

Mass

The quantity of matter in an object, measured in grams (g) or kilograms (kg).

Volume

The amount of space an object occupies, measured in cubic centimeters (cm³) or cubic meters (m³).

Relationship between Density, Mass, and Volume

Density is calculated using the formula density = mass/volume (
ho = rac{m}{V}).

Unit of Density for Water

Water has a density of one gram per cubic centimeter (g/cm³).

High Density vs. Low Density Examples

Lead is dense, while Styrofoam is not; lead is about 10 times denser than water.

How to Calculate Density

Density can be calculated using the equation:
ho = rac{mass ext{ (g)}}{volume ext{ (cm}^3 ext{)}}.

Effect of Temperature on Density

Gases are less dense than solids due to their molecules being more spread out.

Comparison of Densities

At room temperature, gases are typically around one-thousandth (1/1000) of the density of a solid or liquid.

Error Prevention in Density Experiments

Zero the digital balance before measuring mass to avoid systematic errors.

States of Matter

Matter exists as solids, liquids, or gases, each with distinct particle arrangements and energy levels.

Changes of State

Physical changes include melting, boiling, condensing, freezing, and subliming.

Archimedes' Principle

To find the volume of an irregularly shaped object through water displacement, as discovered by Archimedes.

Converting Units

When converting larger units to smaller ones, multiply; when converting smaller units to larger ones, divide.