Edexcel IGCSE Physics · Spec 5.1-5.2
Density: Using the Equation
Worked examples using the density equation.
Physics revision video
Density: Using the Equation
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Spec 5.1-5.2
What you need to know
- Use density equals mass over volume
- Rearrange it to find mass or volume
- Keep the units consistent
Active recall
Quick check
Answer each question before opening the answer.
What is the density of a 300 g block with a volume of 100 cm³?
ρ = m ÷ V = 300 ÷ 100 = 3 g/cm³.
How could you find the volume of an irregular solid?
By displacement — measure the volume of water it pushes out of the way.
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