Density & Relative Density Quiz | Physics MCQs

Density and Relative Density Quiz

Time to test your knowledge about one of the core physical properties—Density! From calculating mass per unit volume to comparing densities of different substances, this quiz will make the concept of density and relative density crystal clear! 🌊⚖️📘

1️⃣ What is the formula for density?

a) Mass × Volume b) Mass / Volume c) Volume / Mass d) Weight / Height

2️⃣ SI unit of density is:

a) g/cm³ b) kg/m³ c) kg d) m³/kg

3️⃣ What is relative density?

a) Ratio of mass to volume b) Ratio of volume to mass c) Ratio of density of substance to water d) Ratio of height to weight

4️⃣ Relative density has:

a) SI unit of kg/m³ b) No unit c) SI unit of g/cm³ d) Unit of kg

5️⃣ Which of the following substances has the highest density?

a) Water b) Iron c) Air d) Wood

6️⃣ If a substance has relative density less than 1, it will:

a) Sink in water b) Float in water c) Dissolve in water d) Evaporate

7️⃣ Density of water is approximately:

a) 1000 kg/m³ b) 1 kg/m³ c) 100 kg/m³ d) 500 kg/m³

8️⃣ Which formula is used to find relative density?

a) Mass / Volume b) Density of substance / Density of water c) Volume / Mass d) Density × Volume

9️⃣ Which of the following is *not* a unit of density?

a) kg/m³ b) g/cm³ c) N/m² d) kg/L

🔟 The density of a substance is affected by:

a) Only its volume b) Only its mass c) Both mass and volume d) Neither mass nor volume

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