N09/4/PHYSI/SPM/ENG/TZ0/XX+ 88096504 Physics standard level PaPer 1 Monday 16 November 2009 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question‚ choose the answer you consider to be the best and indicate your choice on the answer sheet provided. 8809-6504 16 pages © International Baccalaureate Organization 2009 – 2 – 1. N09/4/PHYSI/SPM/ENG/TZ0/XX+ The
Premium Potential energy Mass Energy
Investigating the Osmosis Effect in Potato Cores Aim The aim of this experiment is to investigate the osmosis effect in potato cores while they are submerged in different concentrations of sucrose solution. Osmosis will take place while the potatoes are fully submerged in the sucrose solution. Apparatus æ Scalpel (1) æ Tile (1) æ Pr. Tweezers (1) æ 250ml Beakers (2) æ 100ml Water (Per Beaker) æ 100ml Sucrose Solution o 0.2M o 0.4M o 0.6M o 0.8M o 1.0M æ Measuring
Premium Osmosis Concentration Solution
Water Scarcity & the Importance of Water Introduction: This report has been written to inform you of the world water crisis which is getting worse every second. It has also been written to inform you about the water scarcity and importance. Water Scarcity and importance: Clean‚ safe drinking water is not easy to find any longer. Today‚ nearly 1 billion people in the developing world don’t have access to it. Yet‚ we take it for granted‚ we waste it‚ and we even pay too much to drink it from little
Premium Drinking water Water crisis Waterborne diseases
Task 3 P3 - The potential effects of discrimination There are lots of potential effects related to discrimination. It includes things like disempowerment‚ low self-esteem and self-identity and also marginalisation. I am now going to explain these effects and connect them with a case study. Disempowerment is when a person or group of people may be made to feel less powerful or confident. Some people may try to fight against the discrimination causing an argument but many people do not and they lose
Premium Health care Self-esteem Emotion
Danielle Ashworth Mr. Fletcher English 12 AP 18 February 2014 The Potential Destructiveness of Repetition Life is made up of routines and patterns. Every human being has their own unique system of how they carry themselves through the day. These systems are how we survive‚ and they tend to become part of our subconscious. But there are those who get so caught up in their own conformity that daily life becomes much more demanding than it should be. The results of this perpetual routine can
Premium Psychology Cognition Mind
Biodegradable plastic from cornstarch ABSTRACT The study aims to produce biodegradable plastic using cassava starch as its main component. Cassava starch was mixed with water‚ cornstarch and cooking oil INTRODUCTION There is an increasing demand for plastic‚ from the highly technological fields of electronics‚ fiber optics‚ and pharmaceuticals to the basic necessities such as sandwich wrappers and garbage bags. This high demand for plastics‚ however‚ has been a major contributor to
Premium Starch Polymer
Chapter 1 The Problem-And It’s Background Potato as an alternative battery for scientific calculator is the chosen topic of the researchers. The researchers thought of many topics but the topic about the scientific calculator get their attention. They thought that scientific calculator is very useful to students especially to 4th year students. A scientific calculator is a type of electronic calculator‚ designed to calculate problems in science‚ engineering‚ and mathematics. They have
Premium Ion Electrolysis Electron
The innovation history of cochlear started with the pioneer Graeme Clark. After 50 years of extensive research and collaboration‚ Cochlear reached many milestones and world first on its journey and tens of thousands of cochlear implants were created and perfected which benefits many who suffer from severe hearing impairments and deafness. In Australia‚ nine out of ten people choose Cochlear‚ this shows that they are truly the industry leader. However‚ in today’s mist of globalisation‚ what factors
Premium Hearing impairment Cochlea
Controlled Assessment: Osmosis of a Potato [pic] Osmosis: Osmosis is the movement of substances through a partially/semi permeable membrane from an area of high concentration to an area of low concentration to balance of the concentration of the two sides. Biological membranes do allow water to pass through‚ but water will have no net movement unless osmosis takes place. Preliminary Method I have chosen to investigate the factor of the weight of potato strips after set amounts of time.
Premium
Brief Assignment: Motivation Potential Score I worked for one year as the English department supervisor at the largest chained English Center in Taiwan. My main tasks are to recruit new teachers‚ to arrange class schedules for them‚ and to provide them with life supports. Some other minor tasks are coordinating class schedule for each branch‚ textbook translating‚ TOEFL/GRE tests proctoring‚ and handling students’ complaints. Skill Variety (5 points): Since this position is mainly
Premium Task English people English language