1 joule is equal to which of the following?

The magnitude of the force multiplied by the distance moved by the object in the direction of the applied force equals work done on an object. 

One joule is equal to the work done (or energy expended) by the force of one newton (N) acting over a one-metre distance (m). 

A newton is defined as a force that produces an acceleration of one metre per second (s) on a mass of one kilogram (kg). As a result,  A joule is a unit of work: 1 joule = 1 newton × 1 metre.