PHYSICS FORM ONE MID-TERM EXAMINATION IRINGA UMMUSALAMA SECONDARY SCHOOL
DOWNLOAD EXAM
(a) A vernier caliper is used to measure the thickness of a metallic sheet. The main scale reading is 5.2 cm, the vernier constant is 0.02 mm, and the 3rd vernier scale division coincides with a main scale division. Determine the precise thickness of the sheet, assuming no zero error.
(b) You are measuring the diameter of a small steel rod. The main scale reading is 5 mm, and the thimble scale aligns perfectly at 28 divisions. Calculate the diameter of the steel rod.