1. What is the Density Formula?

Definition: The density formula calculates the mass per unit volume of a substance.

Purpose: It helps determine how much mass is contained in a given volume of material, which is crucial in physics, engineering, and material science.

2. How Does the Formula Work?

The formula is:

Where:

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

Explanation: Density is calculated by dividing the mass of an object by its volume.

3. Importance of Density Calculation

Details: Density is fundamental for material identification, buoyancy calculations, and determining whether objects will float or sink in fluids.

4. Using the Calculator

Tips: Enter the mass in kilograms and volume in cubic meters. Both values must be greater than 0.

5. Frequently Asked Questions (FAQ)

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

Q2: How does temperature affect density?
A: Most materials expand when heated (increasing volume), thus decreasing density.

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

Q4: Can density be used to identify materials?
A: Yes, each material has a characteristic density range that can help in identification.

Q5: What is relative density?
A: It's the ratio of a substance's density to that of water (also called specific gravity).