The joule is the SI unit of energy and is equal to 1 kg m² s^-2. The erg is another energy unit, equal to 1 g cm² s^-2. Use unit conversion methods to work out how many ergs are in 1 joule. A) 10^-1 ergs B) 10 ergs C) 10² ergs D) 10⁵ ergs E) 10⁷ ergs

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Quizplus · Accepted Answer

1 joule is equal to 10^7 ergs because 1 kg = 1000 g and 1 m = 100 cm, so 1 kg m^2 s^-2 = 1000 g (100 cm)^2 s^-2 = 10^7 g cm^2 s^-2.

The Joule Is the SI Unit of Energy and Is