BEPC - Physics Chemistry Technology (PCT) Exam - 2024 Session

This official Physics Chemistry Technology (PCT) exam from the Brevet d'Études du Premier Cycle (BEPC) 2024 session is a complete subject accompanied by its detailed answer key. It complies with the official Cameroonian curriculum and is intended for ninth-grade students preparing for the BEPC examination.

The exam is structured into two main parts that assess both theoretical knowledge and practical skills of the candidates:

• Part A — Resource Assessment: this section includes two distinct exercises covering a wide range of fundamental knowledge.
• Part B — Skills Assessment: this section offers a concrete, real-life problem-solving situation.

Exercise 1 focuses on essential knowledge and covers the following topics: ion nomenclature (calcium and hydroxide ions), colour indicators used in chemistry, the identification test for chloride ions in a solution, types of electrical power transmission lines in Cameroon, and the concept of a simple cross-section of a technical object in technology.

Exercise 2 assesses the application of knowledge and skills through several situations: the dissolution of an ionic solid (potassium chloride) with mole quantity calculation, the use of pH to identify an acidic solution, the importance of crude oil processing, the study of a pulley-belt system with determination of the transmission ratio and rotation speed, and finally the operation of a four-stroke engine with calculation of the number of crankshaft rotations.

Part B presents a competency-based problem rooted in everyday life: an electrical problem occurring in a household. Students must analyse an oscillogram, verify the compliance of an electrical meter based on network characteristics (220V, 50Hz), calculate the total current consumed by various household appliances (oven, cooking plate, washing machine, microwave, lamps) and explain the tripping of a 32A fuse.

The skills assessed in this exam include: mastery of fundamental chemistry concepts (ions, pH, dissolution), understanding of physical phenomena (electricity, oscillograms), knowledge of technology (mechanical systems, four-stroke engine, technical drawing) and the ability to solve practical problems related to everyday life.

The complete answer key is included in this document, with all detailed answers, step-by-step calculations and the explanations needed to understand each question. This document is a valuable tool for revision, practice and self-assessment for ninth-grade students preparing for the BEPC exam.