Solved Problems in Basic Physics

Measurement and significant figures – problems and solutions

1. The length of an object measured using a micrometer is 15.08 mm. Determine the significant figures and the number of significant figures. A. 15.08 mm and three significant figures B. 1.508 mm and four significant figures C. 15.08 mm and four significant figures D. 1.508 mm and three significant figures

Dimensional analysis – problems and solutions

1. Based on the dimensional analysis, determine the following physics dimensions that have the same dimensions. A. work and power B. power and pressure C. force and momentum D. work and heat

Kirchhoff law – problems and solutions

1. If R1 = 2Ω, R2 = 4Ω, R3 = 6Ω, determine the electric current flows in the circuit below. Known : Resistor 1 (R1) = 2Ω Resistor 2 (R2) = 4Ω Resistor 3 (R3) = 6Ω Source of emf 1 (E1) = 9 V Source of emf 2 (E2) = 3 V