The following table explains the difference between arithmetic and geometric progression:

Arithmetic progressionGeometric progression
Arithmetic progression is a series in which the new term is the difference between two consecutive terms such that they have a constant valueGeometric progression is defined as the series in which the new term is obtained by multiplying the two consecutive terms such that they have a constant factor
The series is identified as an arithmetic progression with the help of a common difference between consecutive terms.The series is identified as a geometric progression with the help of a common ratio between consecutive terms.
The consecutive terms vary linearly.The consecutive terms vary exponentially.