What is a joule in simple terms?
joule, 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 physicist James Prescott Joule, it equals 107 ergs, or approximately 0.7377 foot-pounds.
What is joule a measure of?
Work is done, or energy expended, when a force is exerted through a distance. The SI unit for work and energy commonly used in drawing is the joule (J), which is equivalent to a force of one newton exerted through a distance of one meter (m).
What is joules in thermodynamics?
The joule (/dʒaʊl, dʒuːl/ jowl, jool; symbol: J) is a derived unit of energy in the International System of Units. It is also the energy dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one second.
What is a joule in base units?
The joule (J) is the SI unit of energy and is named after English physicist James Prescott Joule (1818–1889). Then, in terms of SI base units a joule is equal to a kilogram times meter squared divided by a second squared (kg×m2s2) ( kg × m 2 s 2 ) .
What is the best definition for joule?
(Entry 1 of 2) : a unit of work or energy equal to the work done by a force of one newton acting through a distance of one meter.
What is a joule kid definition?
A joule refers to the amount of energy transferred to an object when a force of 1 newton is applied on it over a distance of 1 metre (1J = 1N × 1m). It is related to the watt (a unit of power): one watt equals one joule per second.
Can joules measure heat?
Strictly speaking, heat is transfer of energy. Thus heat is measured in the same units as energy, i.e. joules.
What is Joule apex?
joules is the unit of energy , derived from international system of unit .
How do you find joules in physics?
In equation form: work (joules) = force (newtons) x distance (meters), where a joule is the unit of work, as defined in the following paragraph.
How do you find joules?
In equation form: work (joules) = force (newtons) x distance (meters), where a joule is the unit of work, as defined in the following paragraph. In practical terms, even a small force can do a lot of work if it is exerted over a long distance.
What is a joule example?
In physics, it’s common to talk about joules of energy — one example used to illustrate a joule is lifting an apple, which weighs about one Newton. If you raise the apple one meter in the air, you’ve used one joule of work.