Physics 9702 · AS & A Level · Density and pressure

Density and pressure — practice question

Full-fat milk is formed by combining fat-free milk with fat. A volume of $1.000 \times 10^{-3}\,\text{m}^3$ of full-fat milk has a mass of $1.035\,\text{kg}$. In this milk, $4.00\%$ of the volume is fat. The density of fat-free milk is $1.040 \times 10^{3}\,\text{kg m}^{-3}$. Calculate the density of the fat.

  • A$1.25 \times 10^{2}\,\text{kg m}^{-3}$
  • B$9.15 \times 10^{2}\,\text{kg m}^{-3}$
  • C$9.28 \times 10^{2}\,\text{kg m}^{-3}$
  • D$1.16 \times 10^{3}\,\text{kg m}^{-3}$

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