Physics at Bullers Wood… Relevant... ...challenging... ...and fun! Induction Day 28th June 2013 1 Contents Why Choose Physics? ........................................................................................ 3 Induction day .................................................................................................... 3 Your task: Snapping Shoelaces .......................................................................... 4 The AS Physics Course ....................................................................................... 7 Course Structure............................................................................................. 7 Physics Skills ................................................................................................... 7 General and Mathematical Requirements ..................................................... 8 Developing Problem Solving Skills .................................................................. 9 Equipment List ................................................................................................ 9 Summer Preparation ....................................................................................... 10 Annex 1: Maths Skills Self-Assessment Checklist............................................. 11 Annex 2: Who is in Team Physics? .................................................................. 12 **************************************************************** Advice from previous Physics students Learn the GCSE topics really well. Take Physics if you like it; don't be forced into it. Do your own work + questions at home as well as learning everything as you go along. Get revision guides right at the beginning so you are constantly revising, it will pay of when the exams come round. Try to understand the work, not just learn it by rote - it helps your knowledge and understanding of Physics if you apply it to the outside world. Look at the course before you start. The specification is on the Edexcel website. 2 Why Choose Physics? Physics is demanding. It is one of the most challenging A-levels that you could choose...but it is also one of the most rewarding subjects that you could study and one of the most respected! People who study Physics develop skills that are transferrable to other subjects and used in many different careers. Physicists are fantastic thinkers. They are logical and rational. They are able to synthesise information from different sources. They have a good understanding of the importance of uncertainty, in order to make good sense of data. Whatever career path you take, the skills that you learn now will be valuable throughout your life. You might even enjoy it, too! Induction day The induction day is set up for you to enjoy yourselves, have some fun, and to carry out some practical Physics! You will see how Physics is applied to the ‘real world’, whilst getting a taste for the skills that you will be developing when you start the course. You are going to complete a task in pairs. How you approach and think through the task is as important as the final outcome! 3 Your task: Snapping Shoelaces Skills tested: Recall Data manipulation Common sense Designing a practical Physics: Hooke’s Law Materials Elasticity Brief: A sweet manufacturer has to be certain that its popular ‘Strawberry Shoelaces’ will snap if put under enough tension. This is to avoid any accidents should the product becoming wrapped around small children’s necks. How would you calculate the breaking stress for the product to test this requirement? Plan an experiment to find this value. Extra information: 1. The stress, σ, applied to a material can be calculated by: Stress (σ) = force applied (F) ÷ cross sectional area (A) Where stress is measured in N/ m2, force in N and area in m2. 2. The breaking stress of a material is the stress under which the material will yield (break). 3. Weight (N) = mass (kg) x gravitational field strength (N/kg). Take gravitational field strength as 10 N/kg. 4. Diameter of the laces = 2.44mm = 0.00244m 4 Plan What equipment will you use? What is your method? Breaking stress of the Strawberry Shoelaces: ..........................................N/m 2 5 EXTENSION TASK: Plot a graph of viscosity (y-axis) against temperature (x-axis). Hence determine the relationship between flow rate and temperature. Show all your results on the graph paper provided. Temperature (°C) 38 40 42 44 46 48 50 Viscosity (Pa.s) 200 100 70 60 56 53 52 Data from: Radosavljevic, S. and A. Schlunk, 2000. Melting chocolate. CRC for Polymers, University of Sydney. Extra information: 1. Use at least half of the graph paper when plotting the graph. Label the axes. 2. Viscosity describes the internal friction of a fluid. A high viscosity fluid has a relatively high resistance to flow. 3. Describe the relationship between flow rate and temperature, using scientific words. 6 The AS Physics Course Course Structure Each week you will have five 50 min Physics lessons; two doubles and one single. Later in the year you may also be required to attend a weekly ‘seminarstyle’ Problem Solving Class, where you will have the chance to work through exam questions and resolve any problems from the lessons. You will study three units during the year: Unit Title Unit 1 Physics on the go Unit 2 Physics at work Unit 3 Exploring physics Assessment method Exam Exam Practical Percentage of overall grade 40% 40% 20% In addition to this, you will do a ‘Language of Physics’ unit that will run during the Autumn term. The purpose of these lessons will be to develop skills relevant across all Physics units, improve your existing experimental skills and techniques and provide a good foundation for the preparation for the practical coursework in Unit 3. The Physics course requires a lot of independent learning. In order to be successful, the time spent working on your Physics independently should be at least equal to the time spent in the classroom. The earlier you get into this habit, the better! Physics Skills It is our aim, through a range of activities and experiments, to develop your skill levels in the areas of: • • • • • Thinking Problem solving Applying Analysing and evaluating Practical aptitude Oh, and we’ll teach you some Physics along the way too!! 7 General and Mathematical Requirements During the course, you will develop these General and Mathematical skills. Spreadsheet Physical quantities and their units Significant figures Order of magnitude Rate of change Vectors and scalars Planning an experiment A familiarity with the layout of a spreadsheet the symbols and format. Understanding of the distinction between base and derived physical quantities and their units in SI. Use of an appropriate number of significant figures. Appreciate the order of magnitude of common physical quantities. Make order-of-magnitude calculations. Use and interpret expressions such as: average υ = Δx/Δt; average a = Δυ/Δt Recognise a physical quantity as a vector or a scalar. Resolve a vector into two components at right angles to each other. Combine two perpendicular vectors by calculation. Combine any number of coplanar vectors at any angle to each other by drawing. Use the terms accuracy, precision and sensitivity appropriately. Estimate the uncertainty (random error) in a single measurement, express it as an absolute value and as a percentage. Estimate the uncertainty (random error) in a quantity derived by processing a set of experimental data, and express it as an absolute value and as a percentage. In addition to the above, you will also need some prior knowledge of a number of mathematical concepts. Over the summer holiday, you need to complete the Self-Assessment Checklist that you will find in Annex 1 at the back of this booklet. 8 Developing Problem Solving Skills Students taking Physics to advanced level (AS and A2) must develop problem solving skills to enable them to explore a problem and identify different ways of tackling it including investigation and mathematical manipulation. You will need to: • Identify, analyse and accurately describe the problem. • Show that you know and understand what must be done to successfully solve the problem. • Select appropriate methods to solve the problem, then explain - giving reasons - the choice of method(s) used. • Show that you have considered the main risks involved. Equipment List In order to be successful in Physics, you will need to be organised and prepared for each lesson. You need to come to each lesson with the following equipment (as a minimum!): • • • • • • • Pen, pencil & rubber Lined paper Scientific calculator (that you know how to use!!) 30cm ruler Protractor Compass Set square To keep your notes tidy, get yourself a few folders with dividers and some index cards for making revision cards. You will be provided with a text book to accompany the course, which should be brought to every lesson. The VLE will also be used as a source of information (uploaded notes / past papers / discussion board). 9 Summer Preparation To prepare you for AS Physics, we have a number of tasks that you must complete over the summer: Task Done Go through revision book (you need to purchase this from us)* ISBN 9781847621153 Head Start to AS Physics, CPG Learn SI units and quantities (beginning of the book). Learn unit prefixes (beginning of the book). Learn Sections One and Two for the first Physics unit. Sections Three and Four will help you with the 2nd year 12 unit, so read through these topics (these topics will not be in your test in the first week). Maths Skills Self-Assessment checklist (Annex 1). If you are unsure of a concept, use GCSE revision websites and your own KS4 notes to recap it. *You will be tested on this in the first week back, as we believe that this preparation is essential! You will also be tested at the beginning of October to make sure that you are making the necessary progress on the course. A bit of extra work before you start will really help you get going with the course, so invest some time in building a really good foundation for yourself. Enjoy your summer, and we look forward to welcoming you to Team Physics in September. 10 Annex 1: Maths Skills Self-Assessment Checklist Graphs Plot a graph using two variables from experimental or other data, using appropriate scales for graph plotting. Understand that y = mx + c represents a linear relationship and rearrange relationships into this form where appropriate. Determine the gradient and intercept of a linear graph by drawing and calculation. Determine the gradient of a tangent to a non-linear graph by drawing. Finding the gradient and intercept. Find the area under a curve or line. Arithmetic and computation Recognise and use expressions in decimal and standard form (scientific) notation. Use ratios, fractions and percentages. Recognise and use SI prefixes for 10-12, 10-9, 10-6, 10-3, 103, 106 & 109. Use a calculator for: addition, subtraction, multiplication and division finding arithmetic means manipulating degrees finding and using xn, 1/x and √x. Algebra Change the subject of an equation by manipulation of the terms, including positive, negative, integer & fractional indices, & square roots. Solve algebraic equations including those involving inverse and inverse square relationships. Substitute numerical values into algebraic equations using appropriate units for physical quantities. Understand and use the symbols =, <, >, << , >> , ≈, ∝, ~, Σx and Δx. Geometry and trigonometry Calculate the areas of triangles, the circumferences and areas of circles, & the surface areas & volumes of rectangular blocks, cylinders & spheres. Use Pythagoras’ theorem, similarity of triangles and the angle sum of a triangle. Use sine, cosine and tangent in physical problems. 11 Annex 2: Who is in Team Physics? Miss B Evans (Head of Physics) • MEng Chemical and Process Engineering with French, University of Sheffield • MSc Renewable Energy Technology, EUREC Physics is exciting! We are still looking for answers at both ends of the size spectrum – what are things made of, and what is our place in the Universe? The A2 course is fantastic, as it explores particles and the cosmos; I also enjoy the maths of projectiles and the beauty of waves at AS. I have worked as a Sustainable Energy consultant at an Engineering Consultancy and in a not-for-profit organisation, as well as in British Steel’s R&D team. I love the problem-solving element of Physics – working out what the problem is and then identifying the tools you need to solve it. The skills that you develop during the course will be transferrable to whatever you go on to do in the future! Mr A Feakes • BSc Physics, Imperial College, London • MSc Bioinformatics, Birkbeck College, London I’ve always been a science junkie, following the latest developments even when I was working in business, and now being able to pass on that passion through teaching is a wonderful privilege. Though I find all science interesting, Physics fascinates me most – the fundamentals, the foundations and the origins... ultimately, it tells the other sciences what they can and can’t do! Studying Physics will help you to understand everything in our world, from how matter interacts to the thermodynamics underpinning our changing climate. I have been teaching the more mathematical side of the course – mechanics, electronics and quantum physics – and help develop students’ problem solving skills. Miss C O'Sullivan • BSc Oceanography, National Oceanography Centre, University of Southampton • MSc Wildlife Management and Conservation, University of Reading and British Antarctic Survey Due to my academic background I teach fluid dynamics, materials and waves on the course. I have completed research on the fluid dynamics of animals moving through water and on modelling the movements of animals. I have worked for British Antarctic Survey and for turtle conservation projects in Mexico and Costa Rica. My favourite part of Physics is how it makes science beautiful, and how we can use it to help us explain how things work. Fact: There are an infinite number of mes writing this, and an infinite number of yous reading it! Check out dimension science. Mrs L Sansom • BSc Biology (with Physics), Queen Mary, University of London • Winner of the Institute of Physics Teacher of the Year Award Physics is my passion. It feeds my natural curiosity; the eternal wanting to know ‘why’ and ‘how’. As an Assistant Head Teacher in the school, I am continuously transforming myself into different roles to fulfil my responsibilities. Physics, however, always draws me ‘home’. I am looking forward to teaching you the areas of Physics that still inspire and excite me - energy, electricity, fields, astrophysics and particle physics. Are you ready for the most exciting ride of your life? Then come on board and the Physics team will take you to intellectual places you never thought possible. 12