Investigating Density
Investigating Density is a free interactive simulation for GCSE Physics (Edexcel IGCSE 4PH1) in which students measure the mass and volume of different materials to calculate their density, then test predictions by placing objects in water. This is a required practical for Edexcel IGCSE 4PH1. No login required — includes a worksheet and self-marking quiz.
Aim: To investigate the density of different materials by direct measurement of mass and volume.
ρ = m ÷ V
Density (g/cm³) = Mass (g) ÷ Volume (cm³)
Material
Enter your readings
Data Table
| Material | Mass (g) | Vol. (cm³) | Density (g/cm³) | ✓ |
|---|---|---|---|---|
| No results yet. | ||||
- Select a material from the dropdown.
- Use the Balance tab to read the mass display and note the value in grams.
- Use the Ruler tab to read L — the block is a cube, so all sides are equal and Volume = L × L × L = L³.
- Or use the Measuring Cylinder tab — drop the block in. If it floats, click Push under to fully submerge it, then read the water rise for volume.
- Enter your mass, volume, and calculated density, then click Check.
- Repeat for at least five different materials and record each result in the table.
- Plot a bar chart of the different materials and their densities.
- Think: which materials have a density less than water (1 g/cm³)? What would happen if you placed them in water?
Result saved!