Physics Moment of a force: Moment of a force = force x perpendicular distance of the line if action if the force from fulcrum Law of moments: When a body is in equilibrium the sum of the clockwise moments about any point equals the sum of the anticlockwise moments about the same point. Centre of mass: Centre of mass is the point where whole mass of the body assumes to be concentrated. II. If the vertical line through the centre of mass is outside the base it will be a topples but if it’s passed
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1. Plant breeders wanted to produce a better variety of tomato by selective breeding. Two plants‚ of the varieties Tangella and Piranto‚ were crossed. (a) Some flowers of each variety were covered with cellophane bags. The diagram shows a covered flower and a brush. (i) Explain why some flowers were covered with cellophane bags during the selective breeding. .......................................................................................................................... ........
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GCSE Geography Nicholas Rowles Series Editor: Jayne de Courcy PerfectBound An e-book from HarperCollins Publishers 77–85 Fulham Palace Road Hammersmith‚ London W6 8JB First published 2001 © HarperCollinsPublishers Ltd‚ 2001 Nicholas Rowles asserts the moral right to be identified as the author of this work Acrobat eBook Reader edition v 1. April 2001 ISBN: 0-00-712985-8 All rights reserved. You have been granted a non-exclusive‚ nontransferable licence to access and read the text
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NOTES Introduction Wodehouse was a prolific British writer of comic prose fiction. His stories are populated by aristocrats like the ninth Earl of Emsworth‚ and take place in upper class settings. This story was originally published in US and UK magazines in 1924. The story begins with a loving description of the sunshine alighting on‚ among other things‚ the Castle‚ its ivied walls‚ its green lawns‚ wide terraces‚ noble trees and three characters: the Earl‚ his son Freddie and Beach‚ the butler
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Surname Centre No. Initial(s) Paper Reference 3 1 8 5 Candidate No. 2 F Signature Paper Reference(s) 3185/2F Examiner’s use only Edexcel GCSE (Short Course) Team Leader’s use only Information & Communication Technology Paper 2F Question Leave Number Blank A 1 Foundation Tier B1 2 Tuesday 20 May 2008 – Afternoon Time: 1 hour B3 4 B2 3 B4 5 6 Materials required for examination Nil Items included with question papers Case
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1) Demonstrate understanding of the terms atom and molecule. Atom= Smallest Unit of Matter Molecule= 2 or more atoms chemically bonded. 2) Describe paper chromatography. 3) Interpret simple chromatograms. A method used to separate a Solution‚ using a Paper and a beaker of water. The Substances in the Paper go up depending on their Mass. We can say that a Solution has the same substance as another solution because they form a line of the same height. 4) Describe methods of separation
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done. 6Start reviewing‚ learning is over - look at the notes you took these past couple years. You need to remember it all. 7Make sure you review all the tests and exams done in class and learn from your mistakes. 8Try to print out some of the old IGCSE/GCSE papers‚ this way when it comes to the real exam you’ll know how everything is sorted. (Mostly from "Circle the answers" to definitions). 9Study in groups with friends as its very helpful and could help overcome any problems that arise. 10Write
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EXAMINER TIPS for IGCSE Accounting 0452 Before the examination • Make sure you have covered all the topics on the syllabus in your revision. Check this with your teacher if you are unsure. • Study the past examination papers to get an idea of the sort of questions and the styles of paper that are set. • Work through as many examples and past examination papers as possible. • Practice answering narrative questions as well as practical questions. On the day of the examination • Make sure you know exactly
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ANSWERS Cambridge IGCSE® Biology Practice Book Answers 1 Characteristics of living things 1 Characteristic respiration an increase in size‚ mass and complexity of an organism excretion producing offspring‚ which prevents extinction of the species sensitivity this involves feeding – obtaining nutrients for growth‚ energy and maintaining health reproduction in response to changes‚ e.g. presence of a predator‚ to find food or a mate growth the ability
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DRUGS A drug is a chemical substance taken into the body that modifies or affects chemical reactions in the body. Generally‚ drugs are developed for medical use. Without drugs‚ people would live much shorter lives or suffer greater pain. All drugs are dangerous when misused. ANTIBIOTICS [pic] What are Antibiotics? a chemical substance ‚ produced by a microorganism (bacterium or fungus) which will inhibit the growth or replication of other microorganisms. • Effective
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