Form 4 Scheme Of Work 2024 CSEC Physics Term 3 Sections of the CSEC Syllabus to be covered in Term 3, 13 weeks (10 Cycles): - Archimedes Principle Topic Completion of Hydrostatics (Archimedes Principle) Thermal Physics and Kinetic Theory Optics and Waves Content Cycle - State Archimedes Principle 1 Thermal Physics - Nature of Heat 2 - Temperature 2 Objectives Use Archimedes principle to explain upthrust. Use Archimedes principle to predict whether a body would float or sink in a given Fluid. differentiate between the caloric and kinetic theories of heat. discuss the role of Joule’s experiments in establishing the principle of conservation of energy relate temperature to the direction of net thermal energy transfer - - - - - Methodology/Activities Practical experiment to observe the value of upthrust using displacement can. Practice Questions involving calculations of Upthrust - Rumford’s cannon-boring experiments as evidence against the caloric theory. Discuss Joules Experiment - Draw and explain design of: (a) laboratory thermometer. (b) clinical thermometer (c) thermocouple. - Evaluation Worksheet on Calculations involving Archimedes principle Revision questions on thermometers - - Gas Laws - - 3 - - identify physical properties which vary with temperature and may be used as the basis for measuring temperature Feature of Thermometers define the fixed points on the Celsius scale. explain observations of the effects of thermal expansion relate graphs of pressure or volume against temperature to the establishment of the Kelvin temperature scale use the relationship between Kelvin and Celsius scale Derive Equations for, Boyles Law, Charles Law, Pressure Law. Use the Kinetic Theory of Matter to explain the gas laws. - - - - Describe experiment to determine the lower and upper fixed points in a thermometer. - Demonstrations which illustrate expansion of solids, liquids, for example, ball and ring, bar breaking, bimetallic strip. Recall from CSEC Chemistry The kinetic Theory of Matter, Arrangements of Particles in Solids Liquids and Gases. Describe Experiments for Charles, Boyles and Pressure law. Use the Gas laws equations to answer questions. given to students. - Calculation Questions given to students by teacher. - - - Specific Heat Capacity Specific Latent Heat 4 - - distinguish between specific heat capacity, ‘c’ and heat capacity ‘C’ determine the specific heat capacity of metals and liquids; demonstrate that temperature remains constant during a phase change apply the relationship EH = ml determine the specific latent heat of vaporization lv, and fusion, lf of water; distinguish between evaporation and boiling - - - - Methods Of Heat Transfer 5 - - explain the transfer of thermal energy by conduction explain the transfer of thermal energy by convection; explain the transfer of thermal energy by radiation Define Good Absorbers and Good Emitters - - - Teacher explains the concept of Specific heat capacity Teacher shows students how to Use the method of mixtures to determine the specific heat capacity of an unknown liquid/Solid. Teacher shows students how to use the electrical method to determine the specific heat capacity of an unknown solid/liquid. Perform activities to measure specific heat capacity. Practice questions prepared by teacher Perform activity to determine the specific latent heat of fusion of ice, using method of mixtures with a container of negligible heat capacity. Perform activity to determine specific latent heat of fusion Perform activity to compare qualitatively the thermal conductivities of different solids. Perform demonstrations to show convection in fluids. Perform demonstration to show that radiant energy does not need a medium for transmission. Perform experiments to investigate such factors. Assess situations with students where Absorbers and reflectors are used. - Revision questions and Past paper questions on Specific heat capacity and Laten heat. - Worksheet given to students On Methods of heat transfer and Applications - Types of Waves 6 Waves And Optics - - Sound 7 - Electromagnetic Waves 7 - Light 8 - differentiate between types of waves; Transverse and Longitudinal Waves. Parameters of waves; Amplitude, Wavelength, Period, Frequency, Speed of a wave. Wave Phenomena, Reflection, Refraction, Diffraction, Interference. describe how sound is produced and propagated in a medium relate the terms ‘pitch’ and ‘loudness’ to wave parameters apply the speed of sound to practical situations. describe the use of ultrasound state the properties of e.m. waves differentiate between types of e.m. waves in terms of their wavelengths identify a source and use of each type of e.m. wave. Explain the Wave Particle Duality of Light. conduct a Young’s double slit experiment - Show the Production of waves using springs and in ripple tanks. Teacher draw diagrams to show transverse waves and longitudinal waves. Teacher Uses ripple tank to show effects of wave phenomena. - Wave Worksheet with calculations involving speed of waves given to students - Teacher Demonstrates how sound is produced cup and string telephone. Different sounds produced by vibrating systems. - Worksheet on Properties of Sound - Teacher uses the EM Spectrum to distinguish between examples of EM waves as well as properties. Practice Questions of Calculations of EM Waves. - Practice questions in class with students Teacher explains how light can be considered as both a wave and particle, as light exhibits wave - Worksheet and In-class practice questions - - - - - - - - - Lenses 8-9 - to show that light is a wave. explain why the diffraction of light is not normally observed apply the laws of reflection; describe the formation of images in a plane mirror 9describe the refraction of light rays apply Snell’s Law describe how a prism may be used to produce a spectrum explain ‘critical angle’ and ‘total internal reflection’; relate critical angles to total internal reflection illustrate the effect of converging and diverging lenses on a beam of parallel rays define the terms: (a) principal axis; (b) principal focus; (c) focal length; (d) focal plane; (e) magnification differentiate between real and virtual images apply the equations for magnification - - - - - - properties as well as properties of a particle. Teacher Describes the Youngs Double slit experiment and the photoelectric effect. Teacher performs experiments to investigate laws of reflection and Refraction. Practice Questions with calculations with refraction and critical Angle. Teacher shows students how to Investigate the properties of converging and diverging lenses on a beam of parallel rays. Perform experiments to locate real and virtual images and draw diagrams. Perform experiments to measure focal length of converging lens - Worksheet Questions, Practical Lab work on lenses - NOTE: SBA Labs to be Confirmed. determine the focal length of a converging lens