3-Ma'ruza. To’qima materiallari geometrik o`lchamlarnini o`lchash. Tayanch so`z va iboralar: to`qima, to`qish, rulon, o`rilish, saralish, plastinka, mikrometr, namuna, o’lcham, to’p, tukli, darcha, pardoz, shinel. Tеxnik vositalar yordamida fizik, kattaliklarning qiymatini tajribada topish o’lchash dеb ataladi