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New Units for Old
Age 16 to 18
Challenge Level 
| Name | Phenomenon | Units | Base units |
| becquerel, Bq | (radioactivity) | $(\textrm{s}^{-1})$ | $\textrm{s}^{-1}$ |
| degrees Celsius, $^\circ$ C | temperature (relative) | $(\textrm{K}$) | $\textrm{K}$ |
| coulomb, C | electrical charge | ($\textrm{A s})$ | $\textrm{A s}$ |
| farad, F | capacitance | $\textrm{C V}^{-1}$ | $\textrm{A}^2 \textrm{ kg}^{-1} \textrm{ m}^{-2} \textrm{ s}^4$ |
| gray, Gy | radiation dose (absorbed) | $\textrm{J kg}^{-1}$ | $\textrm{m}^2\textrm{ s}^{-2}$ |
| henry, H | inductance | $\textrm{Wb A}^{-1}$ | $\textrm{A}^{-2}\textrm{ kg m}^{2} \textrm{ s}^{-2}$ |
| hertz, Hz | frequency | $(\textrm{s}^{-1})$ | $\textrm{s}^{-1}$ |
| joule, J | energy | $\textrm{N m}$ | $\textrm{kg m}^2 \textrm{ s}^{-2}$ |
| katal, kat | catalytic activity | $(\textrm{mol s}^{-1})$ | $\textrm{mol s}^{-1}$ |
| lumen, lm | flux of light | $\textrm{cd sr}$ | $\textrm{cd m}^2 \textrm{ m}^{-2}$ |
| lux, lx | illuminance | $(\textrm{cd sr m}^{-2})$ | $\textrm{cd m}^2 \textrm{ m}^{-4}$ |
| newton, N | force | $(\textrm{kg ms}^{-2})$ | $\textrm{kg ms}^{-2}$ |
| ohm, $\Omega$ | resistance | $\textrm{V A}^{-1}$ | $\textrm{A}^{-2} \textrm{ kg m}^2 \textrm{ s}^{-3}$ |
| pascal, Pa | pressure | $\textrm{N m}^{-2}$ | $\textrm{kg m}^2 \textrm{ s}^{-2}$ |
| radian, rad | plane angle | (dimensionless) | $\textrm{m m}^{-1}$ |
| siemens, S | conductance | $\textrm{A V}^{-1}$ | $\textrm{A}^2 \textrm{ kg}^{-1} \textrm{ m}^{-2} \textrm{ s}^3$ |
| sievert, Sv | radiation dose (equivalent) | $(\textrm{m}^2\textrm{ s}^{-2})$ | $\textrm{m}^2\textrm{ s}^{-2}$ |
| steradian, sr | solid angle | (dimensionless) | $\textrm{m}^2 \textrm{ m}^{-2}$ |
| tesla, T | magnetic flux density | $(\textrm{A}^{-1} \textrm{ m}^{-1} \textrm{ N})$ | $\textrm{A}^{-1} \textrm{ kg s}^{-2}$ |
| volt, V | electrical potential | $\textrm{W A}^{-1}$ | $\textrm{A}^{-1} \textrm{ kg m}^2 \textrm{ s}^{-3}$ |
| watt, W | power | $\textrm{J s}^{-1}$ | $\textrm{kg m}^2 \textrm{ s}^{-3}$ |
| weber, Wb | magnetic flux | $\textrm{V s}$ | $\textrm{A}^{-1} \textrm{ kg m}^2 \textrm{ s}^{-2}$ |
(date sourced from the Bureau International des Poids et Mesures http://www.bipm.org/)
Items in parenthesis () not present in original table
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