Physics 9702 · AS & A Level · Physical quantities

Physical quantities — practice question

Which estimate would be sensible?

  • A$1 \times 10^{-3}\ \text{kg}$ for the mass of a grain of sand
  • B$1 \times 10^{-2}\ \text{m}^3$ for the volume of a tennis ball
  • C$1 \times 10^{0}\ \text{J}$ for the work done lifting an apple from waist height to head height
  • D$1 \times 10^{4}\ \text{W}$ for the power of a light bulb in a house

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