Difference between intrinsic and extrinsic motivation

Difference between  intrinsic  and extrinsic  motivation 

intrinsic  motivation  is motivation  coming from within,it is   when you do something  because  you enjoy  it, or  find it interesting. 

Danny  is intrinsically  motivated  to  win the award. 

extrinsic  motivation   is doing something for external  rewards,  or for an obligation. It can be,  to avoid  negative  consequences.

The challenge  to the game was extrinsically  motivated.

Teachers  reward children to perform  better in classroom is an example  of extrinsic  motivation.