## Physics

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- Category: Departments
- Last Updated on 11 August 2016

### PHYSICS

Physics is a unique experience for the students at ZIS. Our goal is to provide the student with an appreciation and understanding of the physical world. An equally important goal is to prepare students for college courses and careers that require an understanding of physics. These include the sciences, engineering, medicine, pharmacy, education, agriculture, transportation, meteorology, and many other fields.

One essential tool in developing an understanding of physical principles is mathematics. Mathematical descriptions of motion, force, energy, electricity, magnetism, and light allow us to describe what we observe and predict what we have yet to observe in the most efficient manner possible. So in physics, mathematics is used as a tool to summarize and extend our observations.

Physics is about concepts and real events around us. Mathematics is used as a very useful part of the language of physics. You will find the answers to some of the physical world’s mysteries, such as why the sky is blue and what gives a saxophone its brash sound.

There will be a number of activities to help students learn physics. Students observe and watch lectures, demonstrations, or presentations, work through labs and activities, participate in group lab activities, and are encouraged to ask questions during physics courses. Students are urged to frequently confer with one another, their facilitator, and the teacher. Discussion is a very important factor in learning concepts.

Physics is taught concurrently in the Khmer and English languages, with different textbooks and different teachers. The students are able to learn physics from 2 different, helping them to understand key physics concepts better. Our students have gotten high marks during Government examinations and we receive a lot of positive feedback expressing gratitude in this regard from our former students who go on to study abroad.

Worksheets, which contain supplementary information and/or questions, are regularly given to students. Completing these worksheets is required.

**Course Outline**

The British curriculum is used for physics taught in English. GCE ‘0’ level ‘Physics Matters’, written by Charles Chew and Chow Siew Foong, is used in grade 9 and 10. ‘College Physics’, written by Raymond Serway & Jerry Faughn, will be used in grades 11 and 12.

**Grade 9**

Grade 9 is one of the most important steps in physics education. Students learn about physics terms and begin to understand what is really going on around them. Students realize that physics is everywhere. What are physical quantities? Why must we have them? Why must physical quantities and units be clearly defined? How can we effectively measure large distances and small lengths? How is time measured? What is the difference between speed and velocity? What is acceleration? How can we use graphs to describe motion? What is free fall and terminal velocity? What is a force? What causes changes in motion? How do we calculate the magnitude of a force? Is friction a boon or a bane? Why isn't weight always measured in kilograms? What is inertia and how does it affect us? Why does a ship float in water whereas an iron ball sinks? What is the turning effect of a force and how is it measured? How can we make an object more stable? How is energy related to work? How can we calculate kinetic energy and gravitational potential energy? What is the ‘Principle of Conservation of Energy’? What is ‘power’? How is pressure related to force and area? What is atmospheric pressure and how is it measured? What is pressure in liquids and how is it used to do work? How are temperature and heat related? How can we construct a temperature scale? What is a thermocouple thermometer? What is the kinetic model of matter and how is it used to describe the structure of solids, liquids and gasses? How is the motion of the molecules related to temperature? What causes transfer of thermal energy? What are the three processes of thermal energy transfer? How is temperature related to the internal energy of matter? What is heat capacity and specific heat capacity? What is the difference between boiling and evaporation?

Students will not need advanced mathematics skills for this course, though basic mathematics is a plus.

Topics covered in grade 9 are:

**Measurement**

-What is physics?

-Physical Quantities and SI Units

-Measurement of Length

-Measurement of Time

**Kinematics**

-Distance, Time and Speed

-Speed, Velocity and Acceleration

-Speed-Time Graphs

-Acceleration of Free Fall

**Force**

-Forces

-Scalars and Vectors

-Addition of Vectors

-Forces and Motion

-Friction and Its Effects

**Mass, Weight and Density**

-Mass and Weight, Inertia

-Density

**Turning Effect of Force**

-Moments

-Principle of Moments

-Center of Gravity

-Stability

**Energy, Power and Force**

-Energy

-Work

-Power

**Pressure**

-Pressure in Liquids

-Gas Pressure

**Temperature**

-Temperature and its Measurement

-Common Temperature Scales

-Thermocouple Thermometer

**Kinetics Model of Matter**

-The States of Matter

-Pressure in Gasses

**Transfer of Thermal Energy**

-Transfer of Thermal Energy

-Conduction

-Convection

-Radiation

-Applications of Thermal Energy Transfer

**Thermal Properties of Matter**

- Heat Capacity
- Melting and Solidification
- Boiling and Condensation
- Latent Heat
- Evaporation

**Grade 10**

Here students learn how and why ordinary objects move as they do. Along the way they are introduced to extremely important fundamental quantities: displacement, velocity, acceleration, force, energy and momentum. The deep significance of these quantities dawns on you after you study physics for a few years.

Algebra, trigonometry, and calculus are used without apology. If you have serious ambitions in science, you must become competent in applying mathematics to the physical world. You will get a good intellectual workout solving lots of quantitative problems!

Topics covered in grade 10 are;

- Introduction to physics, SI units and measurement
- Motion in one dimension, uniform motion
- Vectors and 2 dimensional motions
- Velocity and acceleration in two dimensions, projectile motion
- Newton’s Law of Motion
- Work energy and power
- Momentum and impulse

In the laboratory that accompanies this course you will learn how physics works in daily life.

**Grade 11**

In grade 11 students learn how the planets move, how the curves in roads are built for safe turning, how waves travel, what makes electricity useful, and how electric devices work. Angular quantities and trigonometry are frequently used. Algebra is essential for these calculations.

Topics covered in grade 11 are:

**Static Electricity**

- Electrostatics
- Insulators and Conductors
- Electric Fields
- Hazards and Applications of Electrostatics

**Current Electricity**

- Electric Current
- Electromotive Force & Potential Difference
- Resistance

**D.C. Circuits**

- Series Circuits
- Parallel Circuits
- Resistors in Series and Parallel
- Potential Divider
- Transducers

**Practical Electricity**

- Uses of Electricity
- Measuring Electrical Energy
- Danger of Electricity
- Safe use of Electricity & Home

**Magnetism**

- Magnets and Materials
- Magnetic Induction
- Magnetization and Demagnetization
- Magnetic Fields
- Temporary and Permanent Magnets

**Electromagnetism**

- Magnetic Effect of a Current
- Force on Current carrying Conductors
- Forces on a Rectangular Current Carrying Conductor

**Electromagnetic Induction**

- Electromagnetic Induction
- Alternating Current Generators
- Transformers
- Converting A.C to D.C.
- Cathode-Ray Oscilloscope

**Grade 12**

During this last year of physics education in Zaman International School, the students will learn why some materials attract each other while others do not, how electricity is produced, why we use alternating current (a.c.) to transport electrical energy, when the first radio was invented, how television and mobile phones work, that animals use magnetism to navigate, what ‘light’ actually is, where the colors of the rainbow come from and how eyeglasses, microscopes, and telescopes are made. Students frequently use trigonometric graphs & functions as well as geometry. Trigonometry and geometry knowledge is essential for calculations.

Topics covered in grade 12 are:

Magnetism, magnetic materials and earth Induced voltages and current, inductance A.C circuits, generators and RLC circuits Nature of light, reflection and refraction Geometrical optics, images formed by plane mirrors, spherical mirrors and lenses. Wave optics and the wave nature of light. Optical devices, telescope, microscope and the eye Relativity and Modern physics A wide variety of demonstrations multimedia presentations and class activities help students visualize physics and understand it better.