1. What is Density?

Density is a physical property of matter defined as mass per unit volume. It's a fundamental concept in physics and engineering that helps characterize materials and predict their behavior in different conditions.

2. How Does the Calculator Work?

The calculator uses the density formula:

Where:

• Mass — Quantity of matter (kg)
• Volume — Space occupied by the matter (m³)
• Density — Mass per unit volume (kg/m³)

Explanation: The formula shows that density increases with greater mass or smaller volume, and decreases with smaller mass or greater volume.

3. Importance of Density Calculation

Details: Density calculations are essential for material identification, buoyancy predictions, quality control in manufacturing, and many scientific applications including fluid mechanics and thermodynamics.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

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

Q2: How does temperature affect density?
A: For most substances, density decreases with increasing temperature as the volume typically expands while mass stays constant.

Q3: What's the density of water?
A: Pure water at 4°C has a density of 1000 kg/m³ (1 g/cm³). This decreases slightly at higher temperatures.

Q4: How is density used in real-world applications?
A: Applications include determining purity of substances, designing ships and submarines, meteorology, and even identifying counterfeit coins.

Q5: What's the difference between density and specific gravity?
A: Specific gravity is the ratio of a substance's density to the density of water (at 4°C), making it a dimensionless quantity.