Physics Practice Test – Units, Measurement and Dimensional Analysis (Questions with Answers and Explanations)

From the diagram above, calculate the total reading.

A. 12.17 cm    B. 12.20 cm    C. 12.30 cm    D. 13.00 cm

The diagram above illustrates a micrometer screw gauge. Determine its reading. 

A. 10.50 mm      B. 9.46 mm      C. 10.98 mm      D. 11.19 mm

Which of the following is a scalar quantity?

A. Tension     B. Weight     C. Distance     D. Upthrust

Which of the following statements about the mass and the weight of a body is not correct? It’s ______

A. mass is a scalar quantity
B. weight is a function of the gravitational pull on it
C. mass on earth and on the moon is the same
D. weight at the equator and at the poles is the same

Which of the following instruments is the best for measuring the diameter of a thin constantan wire?

A. Callipers       B. Metre rule       C. Micrometer screw gauge    D. Vernier callipers.