Armenia Physics Unified Exam case studies
Armenia Physics Unified Exam · Put your knowledge to work in context.
The Armenian Physics Unified Exam (Ֆիզիկայի միասնական քննություն) is the standardized physics examination used within Armenia's unified entrance assessment system for admission to university programs in physics, engineering, and related technical fields. It is intended for secondary-school graduates and other candidates who need a physics result for higher-education admission. The Armenia Physics Unified Exam case studies are 5 cases and about 1,772 words.
1Braking Distance on a Wet Road
A 1200 kg car travels at 20 m/s on a dry asphalt road. The driver sees a hazard and applies the brakes.
398 words, about 2 min2A Sealed Gas Cylinder Left in the Sun
A rigid steel cylinder of volume 0.020 m³ contains nitrogen gas at an initial pressure of 1.5 × 10⁵ Pa and temperature 290 K. It is left in direct sunlight and its temperature rises to 320 K.
335 words, about 2 min3Two Resistors and a Non-Ideal Ammeter
A student builds a circuit with a 12 V battery of negligible internal resistance, a 6 Ω resistor and a 3 Ω resistor in series, and an ammeter inserted in the loop. The ammeter is not ideal: it has a resistance of 2 Ω.
326 words, about 2 min4Diffraction Grating and a Misread Laser Label
A student shines a red laser through a diffraction grating labelled "600 lines per mm" and observes bright spots on a screen 1.20 m away. The first-order maximum appears 0.52 m from the central maximum.
335 words, about 2 min5Half-Life Measurement with a Noisy Counter
A student measures the activity of a short-lived radioactive sample with a Geiger counter, recording counts over successive 2-minute intervals: 480, 340, 240, 170, 120, 85 (counts per 2 min). The background count rate, measured with no source, is 20 counts per 2 min.
378 words, about 2 min