Medal Heights INTRODUC TI ON W h a t is t h e p u r p ose of t h is d oc u m e n t ? This document contains new tasks for the portfolio in mathematics SL. These tasks have been produced by the IB‚ for teachers to use in the examination sessions in 2012 and 2013. It should be noted that most tasks previously produced and published by the IB will no longer be valid for assessment after the November 2010 examination session. These include all the tasks in any teacher support material (TSM)‚ and
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Introduction In this task‚ I will develop model functions representing the tolerance of human beings to G-force over time. In general‚ humans have a greater tolerance to forward acceleration than backward acceleration‚ since blood vessels in the retina appear more sensitive in the latter direction. As we all know‚ the large acceleration is‚ the shorter time people can bear. Using the data shown in the task and Mat lab analysis‚ we can get several model functions to represent the tolerance
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Math Portfolio SL TYPE I LACSAP’S FRACTIONS Introduction This assignment requires us to solve patterns in numerators and denominators in LACSAP’S FRACTIONS‚ and the first five rows look like: Figure 1: Lacsap’s Fractions 1 1st row 1 3/2 1 2nd row 1 6/4 6/4 1 3rd row 1 10/7 10/6 10/7 1 4th row 1 15/11 15/9 15/9 15/11 1 5th row Then
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enthalpy can be measured. 1. When some solid barium hydroxide and solid ammonium thiosulfate were reacted together‚ the temperature of the surroundings was observed to decrease from 15 ºC to – 4 ºC. What can be deduced from this observation? A. The reaction is exothermic and ∆H is negative. B. The reaction is exothermic and ∆H is positive. C. The reaction is endothermic and ∆H is negative. D. The reaction is endothermic and ∆H is positive. (Total 1 mark) 5.1.2
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Cindy Hwang IB Math 11 SL 1-3 IB Math Portfolio Gold medal heights Aim: The aim of this task is to consider the winning height for the men’s high jump in the Olympic Games. Introduction: The Olympic Games which are held in every four years have an event called Men’s High Jump and usually an athlete tries to jump over a bar which is set up in a certain range from1 meter to 3 meters. The table 1 shows the record of the gold medalists during the Olympic Games held during 1932 to 1980. Note:
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IB Math SL Portfolio Body Mass Index (Type II) AmyXu April 11th/2012 In this portfolio‚ there will be investigations on the topic of the relationship between females of different ages and their body mass index (BMI-a measure of one’s body fat). Body mess index is calculated by taking one’s weight (kg) and dividing by the square of one’s height. ___________________________________________________________________________ While growing up‚ the
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Determining the Enthalpy of Combustion of a Wood Chip IB Chemistry 12 September 18‚ 2014 Ryan Ingham Table 1: Raw data collected from the temperature probe and scale for the water‚ the aluminum can and the wood chip. (Quantitative) Quantity Initial Temperature (±0.1K) Final Temperature (±0.1K) Aluminum Can 46.29g (±0.01g) 296.5 314.7 Water 250g (±0.1g) 296.5 314.7 Wood Chip Before: 4.64g(±0.01g) After: 3.29g (±0.01g) NA
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AP/IB Biology Lab Assessment The effect of various fruit and vegetable cell membranes on their water potential Independent variable: Type of fruit or vegetable. (Produce used: Russet potatoes‚ Pascal celery‚ Gala apple‚ Navel orange‚ and Imperator carrot). The fruit or vegetable will be placed in six 56.7 gram cups‚ ranging with sucrose molarities of 0 (distilled water)‚ 0.2‚ 0.4‚ 0.6‚ 0.8‚ 1.0‚ with 5 trials‚ leading to 30 cups for each produce variable. Dependent variable: The water potential
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Portfolio Name: Nguyeãn Leâ Thuøy Linh Class: AVK37B My husband‚ the Outsider Marian Hyun Paraphrasing: 1. We disappointed many people. Far from being exotic‚ or even very religious‚ our ceremony was performed in English by Unitarian minister on a hotel balcony. But when my husband and I decided to have 50 guests instead of 150‚ we caused an uproar among relatives and family friends‚ especially on the Korean side Not only they are curious but also they very religious‚ we disappointed. Our celebration
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