Physics 9702 · AS & A Level · SI units

SI units — practice question

What is another way to express an energy of $43\,\text{dJ}$?

  • A$4.3 \times 10^{3}\,\text{mJ}$
  • B$4.3 \times 10^{3}\,\text{MJ}$
  • C$4.3 \times 10^{-3}\,\text{mJ}$
  • D$4.3 \times 10^{-3}\,\text{MJ}$

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