Question

What is the definition of 1 joule ? Please explain.

Answer 1

Joule is the SI unit of work or energy.

(1) one joule is the amount of work done to move an object through a distance of one metre in the direction of applying a force of one Newton.

For e.g.

When we raise our pen up to a height of one meter, we perform approximately one joule of work.

1 Joule = 1 Nm.

(2) One joule is the equivalent of one watt of power radiated or dissipated for one second.