Important: This article tracks the official curriculum of the Moroccan Bac. Consulte men.gov.ma for the official curriculum détaillé of physics-chemistry publié by the Ministère of the Éducation National.
The Physics and Chemistry at the Moroccan Bac (stream PC), this is the test of 3h30 who teste mechanics, electricity, ondes, thermodynamique and chemistry according to the official curriculum of the MEN, with a coefficient 7 — the more high of the stream PC. Beaucoup of students have peur of this subject. The bonne nouvelle: the sujets suivent some schémas very prévisibles.
1. The chapters who tombent to the national exam PC
After analysis some annales national PC of 2020 to 2025, voici the frequency of apparition some grands topics and their importance strategic.
| Chapter | Frequency | Remarque |
|---|---|---|
| Mechanics (Newton's laws) | ★★★★★ | 1er exercise systématique in the plupart some sujets PC. |
| Electricity (circuits RC, RL, RLC) | ★★★★★ | Dipôles, regimes transitoires and permanent. Calculs differential equations. |
| Ondes (mechanical and lumineuses) | ★★★★ | Diffraction, interférences, ondes sonores. Documents to analyze. |
| Chemistry (reactions acido-basiques) | ★★★★ | pH, constante Ka, titrages — exercises of calculation with courbes. |
| Thermodynamique | ★★★ | Trade thermiques, 1er principe. Often in partie B. |
| Optics géométrique | ★★★ | Lentilles, miroirs — calculs and constructions géométriques. |
| Chemistry organique | ★★★ | Reactions, isomérie, spectroscopie IR/RMN according to stream. |
For understand the impact some coefficients on your grade finale, consulte notre guide on the coefficients Bac Sciences Maths and PC.
2. Method for the exercises of physics
Structure of a bon exercise of mechanics Newton
For the exercises of mechanics, the method is standardisée: 1. Define the system étudié. 2. Do the inventaire some forces. 3. Apply the 2ème law of Newton. 4. Solve the equation differential or the equations. The correcteurs attribuent some points to each step — same if tu not trouves not the bon result, a method correcte te gives some points.
Circuits electrical: the traps to avoid
The exercises of electricity (RC, RL, RLC) are often well notés by the students préparés. The trap classique: forget the requirements initiales for solve the equation differential. Entraîne-toi on at least 5 exercises complets of each type.
Chemistry: maîtriser the calculs of pH
The exercises of chemistry acido-basique demandent a bonne maîtrise some logarithmes and of the constante Ka. The courbes of titrage reviennent each year — apprends to identify the point of equivalence and to in deduce the concentrations.
3. How it practice efficacement
Revise the physics-chemistry of way passive — relire the lesson — not suffit not. This subject demand of the pratique active, that is solve some exercises régulièrement.
- ✓Fais at the minimum 2 annales complètes PC in requirements real (3h30 chronométrées).
- ✓Utilise Orka for générer some exercises ciblés on the chapters where tu as the more of lacunes.
- ✓After each exercise raté, identifie exactement the step where tu as bloqué and refais a exercise similaire immediately.
- ✓Révise the formulas key all the soirs during the dernière week — a fiche by major thème.
For aller more loin in your method of revision, découvre how the copies PC are solutiones with the barème official of the MEN.
Orka for the Physics and Chemistry
With Orka, the assistant IA natif Darija for the Moroccan Bac, you can générer some exercises of physics and chemistry in the style exact some sujets nationaux PC. the IA you explique each step of resolution and te gives the solution with barème on 20. Disponible 24h/24, in French or in Darija.
Frequently asked questions
Quel is the coefficient of the Physics and Chemistry in stream PC?
The Physics and Chemistry has a coefficient 7 in stream PC — the coefficient the more high of the stream, to égalité with the mathematics. this is therefore the subject who has the more of impact on the average finale at the Bac.
Quels chapters of physics-chemistry tombent the more often at the Bac PC?
The mechanics (Newton's laws) and the electricity (circuits RC, RL, RLC) tombent presque systématiquement, generally in first exercise. The ondes mechanical and lumineuses thus that the chemistry acido-basique reviennent very fréquemment. The thermodynamique, the optics géométrique and the chemistry organique tombent régulièrement but a peu less often.
How many of temps dure the test of Physics and Chemistry at the Bac PC?
the test dure 3h30 and comporte generally 2 to 3 exercises who mélangent physics and chemistry. The barème récompense the method to each step, same if the result final not is not correct.
How improve in physics-chemistry before the exam?
Fais at the minimum 2 annales complètes in requirements real (3h30 chronométrées), révise a fiche of formulas by major thème, and refais systématiquement the exercises ratés in identifiant the step précise where tu as bloqué. The pratique active of exercises compte more that the relecture passive of the lesson.
