joule
1. The SI unit of energy or work, equal to the work done by a force of one newton exerted for a distance of one meter
The light bulb consumes 60 joules of energy per second.
A lâmpada consome 60 joules de energia por segundo.
2. A unit of electrical energy equal to one watt-second
The battery stores 3600 joules of electrical energy.
A bateria armazena 3600 joules de energia elétrica.
3. A unit of heat energy in the metric system
One calorie equals approximately 4.184 joules.
Uma caloria equivale a aproximadamente 4,184 joules.
The joule is the standard unit of energy in both Brazil and Portugal, as well as in English-speaking countries, following the International System of Units (SI). It is commonly used in physics education, engineering, and technical specifications. Named after English physicist James Prescott Joule, this term is universal in scientific and technical contexts across all cultures.
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