Definition: The kilojoule is an SI [International System of Units] derived unit of energy that is equal to 1000 joules. The joule is defined as the amount of energy transferred to an object when a one newton force acts on an object in the direction movement through a distance of one meter.
History/origin: The kilojoule, like other SI derived units, uses SI prefixes to denote multiples or submultiples of the given unit. In this case, the prefix "kilo" is used to express a multiple of 1000.
Current use: In countries that have adopted SI, the kilojoule is widely used as a unit of food energy. In some cases, both kilojoules and kilocalories are displayed, though in countries such as the United States, only kilocalories are shown [often referred to as "Calories"] on food labels. Aside from this everyday use, kilojoules are used within scientific contexts around the world.
Joule
Definition: A joule [symbol: J] is a derived unit of energy in the International System of Units [SI]. It is defined as the energy transferred to an object when a one newton force is applied to the object in the direction of its motion through a distance of one meter. It is also defined as the energy dissipated as heat when a 1 ampere electric current passes through a resistance of one ohm in the course of one second. It has a number of representations both in SI base units as well as other SI units such that:
J = kg·m2/s2 = N·m = Pa·m3 = W·s = C·V
History/origin: The unit, joule, is named after James Prescott Joule, an English physicist and mathematician who helped develop the Kelvin scale. He also discovered the relationship between heat and mechanical work, leading to the law of conservation of energy, and subsequently, the first law of thermodynamics.
Current use: As an SI derived unit, the joule is used within a variety of scientific contexts. Practical examples of energy measurement using joules include the energy required to lift objects, the energy released when objects fall, the heat required to raise temperature, and the kinetic energy of moving objects.
One of the dimensional representations of a joule is the N·m [Newton-meter], which is equivalent to the SI unit for torque. These units however, are different, and should be considered as such. Even though the joule is algebraically equal to the N·m, the N·m should not be used to represent the joule whenever possible, to avoid confusion with torque.
Q: How many Joules in a Kilojoule?
The answer is 1,000 Kilojoule
Q: How do you convert 50000 Joule [J] to Kilojoule [kJ]?
50000 Joule is equal to 50 Kilojoule. Formula to convert 50000 J to kJ is 50000 / 1000
Q: How many Joules in 50000 Kilojoules?
The answer is 50,000,000 Joules
Joules [J] sang kilojoules [kJ] , máy tính chuyển đổi năng lượng và cách chuyển đổi.
Công cụ chuyển đổi Joules sang Kilojoules
Nhập năng lượng bằng jun và nhấn nút Chuyển đổi :
Chuyển đổi từ Kilojoules sang Joules ►
Làm thế nào để chuyển đổi joules sang kilojoules
Một jun bằng một phần nghìn kilojoule:
1J = 0,001kJ
Năng lượng tính bằng kilojoules E [kJ] bằng năng lượng tính bằng jun E [J] chia cho 1000:
E [kJ] = E [J] / 1000
Thí dụ
Chuyển đổi 500 jun sang kilojoules.
Năng lượng E tính bằng kilojoules [kJ] bằng 500 joules [J] chia cho 1000:
E [kJ] = 500J / 1000 = 0,5kJ
Bảng chuyển đổi Joules sang kilojoules
Năng lượng [J]Năng lượng [kJ]1 J0,001 kJ2 J0,002 kJ3 J0,003 kJ4 J0,004 kJ5 J0,005 kJ6 J0,006 kJ7 J0,007 kJ8 J0,008 kJ9 J0,009 kJ10 J0,01 kJ20 J0,02 kJ30 J0,03 kJ40 J0,04 kJ50 J0,05 kJ60 J0,06 kJ70 J0,07 kJ80 J0,08 kJ90 J0,09 kJ100 J0,1 kJ200 J0,2 kJ300 J0,3 kJ400 J0,4 kJ500 J0,5 kJ600 J0,6 kJ700 J0,7 kJ800 J0,8 kJ900 J0,9 kJ1000 J1 kJ2000 J2 kJ3000 J3 kJ4000 J4 kJ5000 J5 kJ6000 J6 kJ7000 J7 kJ8000 J8 kJ9000 J9 kJ10000 J10 kJ100000 J100 kJChuyển đổi KJ sang Joules ►
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How much energy is 50,000 joules? How many kilojoules are in 50 thousand joules? 50,000 J to kJ conversion.
50 thousand joules is equal to exactly 50 kilojoules.
A joule is the standard unit of energy. On the surface of the Earth, it takes about 9.8 joules to lift a 1 kilogram object by 1 meter.
A is 1,000 joules. In some countries, food is labeled in kilojoules, much like kilocalories are used in the United States.
1 Joules = 0.001 Kilojoules10 Joules = 0.01 Kilojoules2500 Joules = 2.5 Kilojoules2 Joules = 0.002 Kilojoules20 Joules = 0.02 Kilojoules5000 Joules = 5 Kilojoules3 Joules = 0.003 Kilojoules30 Joules = 0.03 Kilojoules10000 Joules = 10 Kilojoules4 Joules = 0.004 Kilojoules40 Joules = 0.04 Kilojoules25000 Joules = 25 Kilojoules5 Joules = 0.005 Kilojoules50 Joules = 0.05 Kilojoules50000 Joules = 50 Kilojoules6 Joules = 0.006 Kilojoules100 Joules = 0.1 Kilojoules100000 Joules = 100 Kilojoules7 Joules = 0.007 Kilojoules250 Joules = 0.25 Kilojoules250000 Joules = 250 Kilojoules8 Joules = 0.008 Kilojoules500 Joules = 0.5 Kilojoules500000 Joules = 500 Kilojoules9 Joules = 0.009 Kilojoules1000 Joules = 1 Kilojoules1000000 Joules = 1000 Kilojoules