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A LITTLE SOMETHING WORTH KNOWING

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ScienceOne small ahaUnit or constant

This SI power unit equals one joule per second.

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ScienceOne small aha
Your new ahaThe Watt

One watt means one joule of energy transferred each second. Source: Watt ↗

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More from Measures & Constants

A few more worth knowing.

  1. 08This SI energy unit equals the work done by one newton acting through one metre in its direction.RECALL
    The Joule

    The joule, the metric unit of energy, is named after physicist James Prescott Joule.

    Open this card ↗
  2. 09This SI pressure unit equals one newton per square metre.RECALL
    The Pascal

    The pascal, the metric unit of pressure, is named after mathematician Blaise Pascal.

    Open this card ↗
  3. 10This temperature limit is 0 kelvin, exactly −273.15 °C.RECALL
    Absolute ZeroOpen this card ↗