## How do you calculate energy used?

How to calculate my energy consumptionDevice Wattage (watts) x Hours Used Per Day = Watt-hours (Wh) per Day.Device Usage (Wh) / 1000 (Wh/kWh) = Device Usage in kWh.Daily Usage (kWh) x 30 (Days) = Approximate Monthly Usage (kWh/Month).

## What is joule energy?

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 energy measured in?

JouleThe official measurement unit for energy is the Joule (J). Among the most common units measuring energy mention should be made of the kilowatt/hour (kWh), used especially for electric energy (in fact it is used to calculate electricity bills).

## What is the total energy of the earth?

A planet also has rotational kinetic energy that is not included. The energy E is the amount of energy that would be required to remove a planet from our solar system. The notation (nE+m) stands for n×10m….V = −GMm/R.The Energies of the Planets (joules)Earth-5.29201E+332.66762E+33-2.62439E+338 more columns

## What is the total energy in the system or body?

2.10. The total mechanical energy E of a particle is defined as the sum of the kinetic and potential energies.

## Is work an energy?

Work and energy Work is closely related to energy. The work-energy principle states that an increase in the kinetic energy of a rigid body is caused by an equal amount of positive work done on the body by the resultant force acting on that body.

## How do you find energy in joules?

Multiply watts by seconds to get joules. A 1 Watt device consumes 1 Joule of energy every 1 second. 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.