Essential Principles Of Physics Jos Enic Publishers Pdf [upd] May 2026

The textbook " Essential Principles of Physics " (2014) is authored by E.E. Ike and published by Jos-Enic Publishers. It is a recommended resource for Nigerian secondary students preparing for exams like the Unified Tertiary Matriculation Examination (UTME) and the West African Examinations Council (WAEC).

While a full PDF version of this copyrighted textbook is not publicly available for legal download, you can find related official materials and purchasing options through these resources: Core Topics Covered

Based on typical secondary syllabi supported by this text, the curriculum includes:

Measurements and Units: Identification of SI units, use of metre rules, vernier calipers, and micrometer screw gauges.

Mechanics: Scalars and vectors, motion (linear and circular), Newton's Laws of Motion, and projectile motion. essential principles of physics jos enic publishers pdf

Properties of Matter: Elasticity, surface tension, and pressure in fluids.

Thermal Physics: Temperature measurement, gas laws, and heat transfer.

Waves and Optics: Light reflection, refraction, and wave properties.

Electricity and Magnetism: Static and current electricity, magnetic fields, and electromagnetism. Access and Resources The textbook " Essential Principles of Physics "

Official Syllabus: You can review the Physics General Objectives and Syllabus on Academia.edu to see the specific concepts this book aims to teach.

Purchase and Physical Copies: The book is widely available in Nigerian bookshops and through academic retailers specializing in Jos-Enic Publishers materials.

Alternative Versions: There is an older, internationally recognized book with a similar title, Essential Principles of Physics by P.M. Whelan and M.J. Hodgson, which is available for digital loan through the Internet Archive.

Essential principles of physics : Whelan, P. M. (Patrick Michael) Close the PDF

Phase 2: Principle-First Problem Solving

When you encounter a numerical problem:

Close the PDF. State the physical principle involved (e.g., "This is a conservation of angular momentum problem").
Write the base equation.
Then open the PDF to check your approach against the worked example.

Pedagogical Features of the Jos Enic Publishers Edition

What truly makes the PDF version of this textbook a powerful learning tool are its embedded pedagogical elements:

"Principle Boxes": Every major law (e.g., Conservation of Momentum, Superposition Principle) is enclosed in a distinct box with a summary sentence. This makes revision and keyword searching within the PDF incredibly efficient.
Worked Examples: Unlike some texts that skip intermediate algebraic steps, Jos Enic Publishers ensures every worked example shows substitution, simplification, and final units.
End-of-Chapter "Principle Checks": These are not just problem sets. They are short-answer questions that ask the student to explain why a phenomenon occurs, testing conceptual understanding before mathematical application.
Glossary of Essential Terms: A 10-page glossary at the end of the PDF defines every bolded term in simple language.

Unit 9: Thermodynamics – Heat and Temperature

Thermal physics bridges microscopic motion and macroscopic behavior.

Zeroth Law: If A and B are in thermal equilibrium with C, then A and B are in equilibrium with each other (defines temperature).
First Law: ( \Delta U = Q - W ) (change in internal energy = heat added minus work done by system).
Second Law: Heat cannot spontaneously flow from a colder body to a hotter body. Entropy of an isolated system never decreases.
Third Law: As temperature approaches absolute zero, entropy approaches a minimum.
Ideal gas law: ( PV = nRT )
Thermal expansion, heat capacity, latent heat, and heat transfer (conduction, convection, radiation).

5. The Second Law of Thermodynamics (The Arrow of Time)

The total entropy of an isolated system never decreases.

In plain language: Things tend to go from order to disorder. Heat flows from hot to cold, not the reverse. You can’t unscramble an egg.
Why it’s essential: It explains why some processes are irreversible and why perpetual motion machines of the second kind are impossible.