The objective of the invention is to determine the material of an object on which a mobile terminal has been laid. A mobile terminal (1) calculates a first feature amount representative of a movement characteristic in the in-plane direction when the mobile terminal is caused to vibrate with the mobile terminal being laid on a target object. The mobile terminal also calculates a second feature amount representative of a movement characteristic in the out-of-plane direction when the mobile terminal is caused to vibrate with the mobile terminal being laid on the target object. From a database having stored, for each of one or more materials, a range of the first feature amount and a range of the second feature amount with the former range being associated with the latter range, the mobile terminal finds a material on the basis of the calculated first and second feature amounts and determines the found material as the material of the target object.