Intrinsic motivation is driven by a person who may have an idea, attitude, attention, intention, vision, values, needs, satisfaction, etc.. These things influence behavior relatively permanent.
Internal motivation is a push from within the person, which may be the attitudes of ideas. Attention attention To see the waterfall would demand satisfaction, etc. These things influence the behavior of relatively permanent
It is also driven by internal incentives within the person who may be interested, the attitude of thought value was intended to satisfy the needs, etc. There are things that this behavior is quite permanent influence.