1. What is Density?

Density is a physical property of matter defined as mass per unit volume. It's an intensive property, meaning it doesn't depend on the amount of material.

2. How Does the Calculator Work?

The calculator uses the density equation:

Where:

• \( \rho \) — Density (kg/m³)
• \( m \) — Mass (kg)
• \( V \) — Volume (m³)

Explanation: The equation shows the direct relationship between mass and density, and inverse relationship between volume and density.

3. Importance of Density Calculation

Details: Density is crucial for identifying substances, determining buoyancy, and in engineering applications. It helps distinguish between materials with similar appearances.

4. Using the Calculator

Tips: Enter mass in kilograms and volume in cubic meters. Both values must be positive numbers. The calculator will compute density in kg/m³.

5. Frequently Asked Questions (FAQ)

Q1: What are common density units?
A: While kg/m³ is the SI unit, g/cm³ is also commonly used (1 g/cm³ = 1000 kg/m³).

Q2: What's the density of water?
A: Pure water at 4°C has a density of 1000 kg/m³ or 1 g/cm³.

Q3: How does temperature affect density?
A: Most substances expand when heated (lower density), except water between 0-4°C.

Q4: What is relative density?
A: It's the ratio of a substance's density to that of water (unitless).

Q5: Why do some objects float?
A: Objects float if their average density is less than the fluid they're in (Archimedes' principle).