# Ethiopian Grade 12 Physics Teacher Guide [PDF]

Ethiopian Grade 12 Physics Teacher Guide [PDF]: This is not only a Teacher’s Guide but is also a success guide for students of Ethiopia. All Physics Teachers must download this guideline for teaching purposes. This book is the design and developed by the expert commute of the Federal Democratic Republic of Ethiopia Ministry of Education.

After completing grade 12 physics lessons the students will be able to: understand the laws of thermodynamics, thermodynamical processes, work and heat in thermodynamic processes, heat engines, reversible and irreversible processes, and develop skills in applying the laws of thermodynamics to describe the physical phenomenon.

## Ethiopian Grade 12 Physics Teacher Guide

The teacher should assess each student’s work continuously over the whole unit and compare it with the following description, based on the competencies, to determine whether the student has achieved the minimum required level.

 Units Number of Periods Unit 1: Thermodynamics 1 1.1 Thermal equilibrium and definition of temperature 1.2 Work, heat and the first law of thermodynamics 1.3 Kinetic theory of gases 1.4 Second law of thermodynamics, efficiency, and entropy 1.5 Heat engines and refrigerators Sub Units 1 4 3 4 3 Total   15 Unit 2: Oscillations and waves 2.1 Periodic motion (basic concepts) 2.2 Wave motion 2.3 Sound, loudness and the human ear 7 4 7 18 Unit 3: Wave optics  3.1 Wavefronts and Huygens’s principle 3.2 Reflection and refraction of plane wavefronts 3.3 Proof of the laws of reflection and refraction using Huygens’s principle 3.4 Interference 3.5 Young’s double-slit experiment and expression for fringe width 3.6 Coherent sources and sustained interference of light 3.7 Diffraction due to a single slit and a diffraction grating 1 1 2 1 2 1 2 10 Unit 4: Electrostatics 4.1 Electric charge and Coulomb’s law 4.2 Electric potential 4.3 Capacitors and dielectrics 5 5 4 14 Unit 5: Steady electric current and circuit properties 5.1 Basic principles 5.2 Kirchoff’s rules 5.3 Measuring instruments 5.4 The Wheatstone bridge and the potentiometer 2 4 4 3 13 Unit 6: Magnetism  6.1 Concepts of a magnetic field 6.2 The Earth and magnetic fields 6.3 Motion of charged particles in a magnetic field 6.4 Magnetic force on current-carrying conductors (long, straight, circular loop) 6.5 Ampere’s law and its application 6.6 Earth’s magnetism 1 1 2 3 2 1 2 14 Unit 7: Electromagnetic induction and a.c. circuits  7.1 Phenomena of electromagnetic induction 7.2 Alternating current (a.c.) generator and transformers 7.3 Alternating current (a.c.) 7.4 Power in a.c. circuits 6 1 4 7 18 Unit 8 Atomic physics  8.1 Dual nature of matter and radiation 8.2 Atoms and nuclei 8 12 20