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Watts

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  • How do you measure energy expenditure?

  • Energy expenditure can be measured using one of the three approaches: 1. In indirect calorimetry, oxygen consumption and/or carbon dioxide production is measured and converted to energy expenditure using formulae1,2. 2. In direct calorimetry, the rate of heat loss from the subject to the calorimeter is measured.

  • What is the unit of measurement for energy?

  • Voltage creates an electrical current by moving electrons through a conductor. Once energy sources have gone through the needed combustion, transformation, or conversion to be used by us in our homes, it鈥檚 measured in kilowatt hours. Going back to the SI energy derived units, remember that a Watt is the unit of measurement for power.

  • Why is energy measured in kilowatt hours?

  • Once energy sources have gone through the needed combustion, transformation, or conversion to be used by us in our homes, it鈥檚 measured in kilowatt hours. Going back to the SI energy derived units, remember that a Watt is the unit of measurement for power. A kilowatt-hour is a measure of energy, which has been converted.

  • Why is energy measured in BTUs?

  • Because a Btu is so small, energy is usually measured in millions of Btus. 1 Btu = the amount of energy required to increase the temperature of one pound of water (which is equivalent to one pint) by one degree Fahrenheit. This is roughly the heat produced from burning one match.

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