WebSince 1 N-m equals 1 Joule, that's 10 Joules. If it takes 1 second to lift the weight 1 meter, than you have converted 10 Joules of energy to potential energy in one second. That's 10 Watts of power. If you lift a 2 kg weight 1 meter in 1 second, then the rate of energy conversion is 2 x 10 = 20 Joules per second, or 20 Watts of power. Web1 erg = 1.0E-7 joule [J] erg to joule, joule to erg. 1 gigawatt-hour [GW*h] = 3600000000000 joule [J] gigawatt-hour to joule, joule to gigawatt-hour. 1 megawatt-hour [MW*h] = 3600000000 joule [J] megawatt-hour to joule, joule to megawatt-hour. 1 kilowatt-second [kW*s] = 1000 joule [J]
World energy consumption – beyond 500 exajoules - Resilience
WebThe power P in watts (W) is equal to the energy E in joules (J), divided by the time period t in seconds (s): P (W) = E (J) / t (s) So. watt = joule / second. or. W = J / s. Example. What is the power consumption of an electrical circuit that has energy consumption of 90 joules for time duration of 3 seconds? P (W) = 90J / 3s = 30W . How to ... WebThe equation for a joule is as follows: 1 joule = 1-watt X 1 second. Which means: 1 watt = 1 joule/second (one joule per second) As mentioned above, joules are part of the equation for calculating your electricity use but are not the main unit of measurement you’ll see on your electricity bill. We’ll go over how joules factor into the ... understanding car crashes video
Power - Power and efficiency - Edexcel - BBC Bitesize
Web1 BTU = 1,055 J: joules: J: International System of Units (SI) base unit: kilojoules: kJ: International System of Units (SI) 1,000 J = 1 kJ: megajoules: MJ: International System of … WebWhile the joule is the SI base unit for energy, when speaking in real-world terms, we often use the kilowatt-hour (kWh) instead. This is due to the fact that a joule is an extremely … Webjoule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre. Named in honour of the English … understanding car crashes video answers