How do you calculate work done in joules?

How do you calculate work done in joules?

Work can be calculated with the equation: Work = Force × Distance. The SI unit for work is the joule (J), or Newton • meter (N • m). One joule equals the amount of work that is done when 1 N of force moves an object over a distance of 1 m.

How do you convert energy to joules?

When the Watt is multiplied by a unit of time, an energy unit is formed as follows: 1 Ws = 1 J. The use of the kilowatt-hour is more common: 1 kWh = 3600 kWs = 3.6 MJ.

How do you calculate energy in joules?

If you multiply the number of watts by the number of seconds, you’ll end up with joules. To find out how much energy a 60W light bulb consumes in 120 seconds, simply multiply (60 watts) x (120 seconds) = 7200 Joules.

What is the energy unit?

Joule (J). This is the basic energy unit of the metric system, or in a later more comprehensive formulation, the International System of Units (SI). It is ultimately defined in terms of the meter, kilogram, and second.

What is the unit of kinetic energy?

Joule
The SI unit of kinetic energy is Joule which is equal to 1 kg. m2. s-2. The CGS unit of kinetic energy is erg.

How do you calculate energy units?

When the Watt is multiplied by a unit of time, an energy unit is formed as follows: 1 Ws = 1 J. The use of the kilowatt-hour is more common: 1 kWh = 3600 kWs = 3.6 MJ. Besides the second [s] and the hour [h], the day [d] and the year [yr] are also used, with 1 yr = 365.2425 d = 31,556,952 s.

What is joule SI unit?

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). Work in the UK/US system is often expressed as foot-pounds (ft-lb), with one foot-pound equal to 1.3558 J.

How do you convert joules to force?

1 joule is equal to 1 newton meter. The ratio of joules to newton meters is 1:1. If you need to convert any number from joules to newtons, all you have to do is multiply it by 1.

What is a joule in Newtons?

One joule equals the work done (or energy expended) by a force of one newton (N) acting over a distance of one meter (m). One newton equals a force that produces an acceleration of one meter per second (s) per second on a one kilogram (kg) mass. Therefore, one joule equals one newton•meter.

What is the value of 1 joule?

It is equal to the amount of work done when a force of 1 newton displaces a mass through a distance of 1 metre in the direction of the force applied….

How do you calculate joules in electrical energy?

So if 1 watt = 1 joule per second, it therefore follows that: 1 Joule of energy = 1 watt over one unit of time, that is: Work equals Power multiplied by Time, (V*I*t joules). So electrical energy (the work done) is obtained by multiplying power by the time in seconds that the charge (in the form of a current) flows.