GRADE 13 A LEVEL PHYSICS COURSE SYLLABUS 2020-2021
Cambridge AS and A level Syllabus at GEMS Wesgreen International School aims to provide the students an opportunity to develop attitudes relevant to physics such as; concern for accuracy and precision, objectivity and inquiry. Cambridge International AS and A Level Physics helps learners develop the knowledge and skills that will prepare them for successful university study.
Students should be helped to understand how, through the ideas of physics, the complex and diverse phenomena of the natural world can be described in terms of a number of key ideas which are of universal application and which can be illustrated in the separate topics set out below. These ideas include:
- the use of models, as in the particle model of matter or the wave models of light and of sound
- the concept of cause and effect in explaining such links as those between force and acceleration, or between changes in atomic nuclei and radioactive emissions
- the phenomena of ‘action at a distance’ and the related concept of the field as the key to analysing electrical, magnetic and gravitational effects
- that differences, for example between pressures or temperatures or electrical potentials, are the drivers of change
- that proportionality, for example between weight and mass of an object or between force and extension in a spring, is an important aspect of many models in science.
Throughout each unit, the students are given the opportunity to build on the objectives below:
- provide an enjoyable and worthwhile educational experience for all learners, whether or not they go on to study science beyond this level.
- enable learners to acquire sufficient knowledge and understanding to:
- become confident citizens in a technological world and develop an informed interest in scientific matters
- allow learners to recognize that science is evidence-based and understand the usefulness, and the limitations, of scientific method
- develop skills that:
- are relevant to the study and practice of physics
- are useful in everyday life
- encourage a systematic approach to problem-solving
- encourage efficient and safe practice
- encourage effective communication through the language of science
- develop attitudes relevant to physics such as:
- concern for accuracy and precision
For blended learning we will provide video links, live demonstrations of practical investigation as well as access to the relevant worksheets and resources that all students will need.
The principles of circular motion are relevant to many areas of physics, and in particular to the orbits of satellites and moons around planets, and to the movement of charged particles in magnetic fields, so it is important to teach this unit before moving on later to Unit 18 and Unit 21. The study of circular motion follows on from and builds on previous work on linear motion and acceleration. They study some of the many examples of naturally occurring oscillations, and the unit is closely linked to circular motion. The qualitative and quantitative concepts concerning the states of matter, changes of state and internal energy are fundamentally important in developing an understanding of the behavior of matter in the world around us.
Unit 13 Motion in a circle
Unit 14: Oscillations
Unit 15: Temperature
Unit 16: Thermal properties
Unit 17: Ideal gases
Unit 18: Gravitational and electric fields
Unit 19: Capacitance
Unit 20: Electronics
Unit 21: Magnetic fields
Unit 22: Electromagnetic induction
Specific National Curriculum Objectives Covered:
Motion in a Circle
- define the radian and express angular displacement in radians
- understand and use the concept of angular speed to solve problems
- recall and use centripetal force equations F = mrω2
- understand the concept of a gravitational field as an example of a field of force and define gravitational field strength as force per unit mass
- recall and solve problems using the equation g = GM/r2 for the
- gravitational field strength of a point mass
- understand and use the terms amplitude, period, frequency, angular frequency and phase difference
- express the period in terms of both frequency and angular frequency
- describe practical examples of damped oscillations with particular reference to the effects of the degree of damping and the importance of critical damping
- describe practical examples of forced oscillations and resonance
- appreciate that there are some circumstances in which resonance is useful and other circumstances in which resonance should be avoided
Temperature and Ideal Gas
- state the basic assumptions of the kinetic theory of gases c)
- explain how molecular movement causes the pressure exerted by a gas and hence deduce the relationship pV = 1/3Nmc2
- understand that there is an absolute scale of temperature that does not depend on the property of any particular substance
- define and use the concept of specific latent heat, and identify the main principles of its determination by electrical methods
- recall and use the first law of thermodynamics ΔU= q+w expressed in terms of the increase in internal energy, the heating of the system
Electric Field Capacitance and Electronics
- understand that, for any point outside a spherical conductor, the charge on the sphere may be considered to act as a point charge at its centre.
- recall and use Coulomb’s law.
- recognize the analogy between certain qualitative and quantitative aspects of electric fields and gravitational fields.
- solve problems using the capacitance formulae for capacitors in series and in parallel.
- show an understanding of the action of a piezo-electric transducer and its application in a simple microphone.
- understand the effects of negative feedback on the gain of an operational amplifier.
- recall the circuit diagrams for both the inverting and the non-inverting amplifier for single signal input.
- understand the virtual earth approximation and derive an expression for the gain of inverting amplifiers.
- recall the main properties of the ideal operational amplifier.
- recall and use expressions for the voltage gain of inverting and of non-inverting amplifiers.
Magnetic Field and Electromagnetic Induction
- understand that a magnetic field is an example of a field of force produced either by current-carrying conductors or by permanent magnets.
- recall and solve problems using the equation F = BIL sinθ, with directions as interpreted by Fleming’s left-hand rule.
- define magnetic flux density and the tesla.
- understand how the force on a current-carrying conductor can be used to measure the flux density of a magnetic field using a current balance.
- explain how electric and magnetic fields can be used in velocity selection.
- explain the forces between current-carrying conductors and predict the direction of the forces.
- recall and solve problems using Faraday’s law of electromagnetic induction and Lenz’s law.
- explain simple applications of electromagnetic induction.
Formative: Throughout the units, the students will complete graded work, quizzes and practical, research activities, which allows the teacher to assess the students’ attainment and inform their planning.
For each unit the students complete a pre and posttest. This allows us to see progress across the units and to inform our planning.
Summative: At the end of first term we complete internal tests – Unit based and combined Units. Students complete standardized tests such as Mock Exam during the month of March. This allows us to measure the students’ progress throughout the term and year.