The extension of an elastic object, such as a spring, is described by hooke s law. Stretching springs, hookes law f k x ext, elastic behaviour. In position a the spring is at rest and no external force acts on the block. Isaac physics a project designed to offer support and activities in physics problem solving to teachers and students from gcse level through to university. Igcse physics hookes law free download as word doc. Under the terms of the licence agreement, an individual user may print out a pdf of a single entry from a reference work in. Learn not only about the hooke s law, but also about its history. State hookes law as an equation, explain what each variable represents and give the units. Hookes law applies essentially to onedimensional deformations, but it can be extended to more general threedimensional deformations by the. Objective the objective of this lab is to show that the response of a spring when an external agent changes its equilibrium length by x can be described by hookes law, f. June 2019this cgp revision guide explains everything students will need for success in grade 91 edexcel international gcse physics. For instance, the spring is pulled downwards with either no load, f p, or twice f p. Stretching springs, equilibrium and balanced forces, restoring force, practical, graph and gradient, and the limit of proportionality.
In mechanics physics, hooke s law is an approximation of the response of elastic i. A short revision video explaining how forces change the shape of objects, how we show this using graphs and make calculations using hooke s law. Model to demonstrate hookes law and illustrate that physiological phenomena, such as lengthtension relationships of the heart starling. Hookes law in terms of stress and strain is stress strain in terms of the definitions l l y a f the constant of proportionality is called the elastic modulus or youngs modulus. Materials for which hookes law is a useful approximation are known as linearelastic or hookean materials. Teacher notes hookes law program robert hooke 1635.
When you need to use your books use the index to find the relevant chapters. The extension of an elastic object, such as a spring, is described by hookes law. For help with downloading a wikipedia page as a pdf, see help. She adds 4 weights and takes some recordings which are shown in. It states that for a helical spring or any other elastic material, extension is directly proportional to the stretching force,provided elastic limit is not exceeded i.
Ee is known as hookes law and is an example of a constitutive law. Smart notes online provides help to the students by classifying resources, such as books, revision guides, notes, past papers, mark schemes and examiner reports. He first stated the law in 1660 as a latin anagram. Gcse physics show 10 more would i be able to handle physics a level if i get these grades. Physics notes form 2 free download kcse revision notes pdf. The easier we make it, the faster people understand it and the more they enjoy it. Thanks to this book, you dont have to be einstein to understand physics. Kind regards mr ronesh moments and forces test moments and forces test answers notes on hooke s law. Teacher notes hookes law program robert hooke 16351703. Dear year 9 and 10 physics learners i have attached the notes, revision questions and answers on hooke s law and moments. Hooke s law is used today in many places, and its actually good to understand it.
Pdf cambridge igcse physics duncan, tom achmad riyadi. The spring i hooke s law and oscillations objectives. Basic overview of the hooke s law formula, with experimental example and graph. Gcse science required practical simple worksheet, good for foundation. The law is named after 17th century british physicist robert hooke. Whether youre taking a class, helping kids with homework, or. Hooke s law physics q book contridictions as physics a level, check on my ans from question, no mark scheme at textbook m3 or s3. Core state that a force may produce a change in size and shape of a body plot extensionload graphs and describe the associated experimental procedure supplement interpret extensionload graphs state hookes law and recall and use the expression f k.
This resource is designed for use with cambridge igcse physics. Hookes law relates the stretching force and extension produced. Hookes law only applies if you do not stretch a spring too far. Cie igcse forces hookes law only elasticity physics. Hookes law hookes law, f kx, where the applied force f equals a constant k times the displacement or change in length x. Hooke s law in the diagram below is shown a block attached to a spring. The slope of the graph equals the force constant \k\ in newtons per meter. Ict notes form 1 igcse physics alternative to practical revision igcse physics alternative to practical revision notes igcse physics book igcse physics book pdf. Cambridge igcse physics, 3rd edition tom duncan, heather. Hookes law states that the extension of a spring is proportional to the applied force, provided that the force is not large enough to deform the spring permanently. To investigate hookes law not being obeyed, elastic bands can be used to produce a nonlinear graph. In position b a force f is used to compress the spring by a length equal to.
Physics combined science trilogy revision booklet 7 forces book ref. To verify that this behavior is accurately described by hooks law. State hookes law and recall and use the expression f k x. Cambridge igcse physics, second edition matches the requirements of the 2016 cambridge igcse physics syllabus 0625. Cambridge igcse physics, 3rd edition tom duncan, heather kennett endorsed by cambridge international examinations the bestselling title, developed by international experts now updated to offer comprehensive coverage of the core and extended topics in the latest syllabus.
The elastic limit of a material is the furthest point it can be stretched or deformed while being able to. Hooke s law is a principle of physics that states that the force f needed to extend or compress a spring by some distance x is proportional to that distance. In each case draw and label the forces acting on the object. Cambridge igcse physics coursebook second edition by. This law is only true if the elastic limit of the object has not been reached. Aqa gcse physics third edition book where to get answers. In terms of springs, this means understanding the laws of elasticity, torsion and force that come into play which together are known as hooke s law. Mark scheme for forces hookes law extended theory paper 1 questions from cie igcse physics past papers. A spring which obeys hooke s law has a force constant of 160 nm ai caculate the extension in mm of the spring produced by a force of 4. Extension produced in a spring is directly proportional to the stretching force or load within the limit of proportionality. Hookes law forces and elasticity aqa gcse combined. Hookes law and moments revision year 1 igcse physics.
Part of the macmillan work out series book series mcwo chapters table of contents 20 chapters about about this book. The most popular series for gcse has been updated to offer comprehensive coverage of the revised gcse specifications. Extension happens when an object increases in length, and compression happens when it decreases in length. Hooke s law and moments revision year 1 igcse physics. Hookes law introduction force of a spring flipping physics. X here f force k spring constant x extension the elastic limit can be seen on the graph. Here f is the restoring force or the force exerted by the spring on the external agent and k is a. Hooke s law simply states that the extension of a spring or other stretch object is directly proportional to the force acting on it. As you read about newtons laws, keplers laws, hooke s law, ohms law, and others, youll appreciate the for dummies law. Forces hooke s law alternative to practical paper 2. Forces acting on solids stretching springs hookes law pressure calculating pressure.
Explain the difference between a progressive wave and stationary wave in phase, amp. F kx, where k is a constant factor characteristic of the spring, its stiffness. Cie igcse forces hookes law only elasticity physics force. The book is stationary because the push upwards from the table is equal to the weight downwards. Hookes law holds up to a maximum stress called the proportional limit. It expresses, in terms of macroscopic quantities, something about the nature or constitution of the material. Hookes law the graph for the elastic band will look like this 15 a 0 0 2 4 6 8 10 12 14 16 18 2 4 6 8 10 12 velocity ms time s b 22. Cie igcse forces hookes law only free download as powerpoint presentation. Physics igcse 2012 exam revision notes by samuel lees and adrian guillot 1.
A common physics laboratory exercise is to measure restoring forces created by springs, determine if they follow hookes law, and calculate their force constants if they do. Hooke s law this is a wikipedia book, a collection of wikipedia articles that can be easily saved, imported by an external electronic rendering service, and ordered as a printed book. If youre behind a web filter, please make sure that the domains. Hookes law program robert hooke 16351703see encarta this program is designed to be used with standard springs available from equipment distributors such as philip harris that will be a hands on version of the program. Hooke s law when a spring stretches, the extension of the spring is proportional to the force stretching it, provided the elastic limit of the spring is not exceeded. Physics for igcse physics pages 6061 23rd november 2011 cie igcse specification 1. Not to mention that he got in trouble for being a ladies man. New 14 cambridge 20 igcse for physics third edition this page.
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