// Numbas version: finer_feedback_settings
{"name": "MG Mass calculations from a nutrition label (7)", "extensions": [], "custom_part_types": [], "resources": [["question-resources/FDA_Nutrition_Facts_Label_2016_300.png", "FDA_Nutrition_Facts_Label_2016_300.png"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "MG Mass calculations from a nutrition label (7)", "tags": ["LANTITE", "Western Sydney MESH"], "metadata": {"description": "<p>Used for LANTITE preparation (Australia). MG = Measurement &amp; Geometry strand.&nbsp;A&nbsp;nutrition label is shown, and one multiple choice question asked. There are seven potential questions (scenarios).</p>", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "statement": "<p>The nutrition facts for a snack food are given on the nutrition panel below.</p>\n<p><img src=\"resources/question-resources/FDA_Nutrition_Facts_Label_2016_300.png\"/></p>\n<p><sup><a href=\"https://commons.wikimedia.org/wiki/File:FDA_Nutrition_Facts_Label_2016.png\">https://commons.wikimedia.org/wiki/File:FDA_Nutrition_Facts_Label_2016.png</a></sup></p>", "advice": "<p>{advice}</p>", "rulesets": {}, "extensions": [], "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"scenarios": {"name": "scenarios", "group": "Ungrouped variables", "definition": "json_decode(safe(\"[\\n  {\\n    \\\"question\\\":\\\"Dan eats three servings of the snack. How many grams of sodium does he consume in total?\\\",\\n    \\\"answer\\\":\\\"0.48\\\",\\n    \\\"distractor1\\\":\\\"0.048\\\",\\n    \\\"distractor2\\\":\\\"4.8\\\",\\n    \\\"distractor3\\\":\\\"48\\\",\\n    \\\"feedback\\\":\\\"Each serving contains 160 milligrams of sodium. <br>Three servings would contain 3 x 160 = 480 mg of sodium. <br>To convert mg to grams, divide by 1000, as there are 1000 mg in a gram. <br>480 \u00f7 1000 = 0.48 so Dan consumes 0.48 grams of sodium in total.\\\"\\n  },\\n  {\\n    \\\"question\\\":\\\"How many serves of the snack would be needed if I wanted to consume 1 gram of Calcium?\\\",\\n    \\\"answer\\\":4,\\n    \\\"distractor1\\\":2,\\n    \\\"distractor2\\\":3,\\n    \\\"distractor3\\\":5,\\n    \\\"feedback\\\":\\\"One serving contains 260 milligrams of Calcium. <br>There are 1000 mg in one gram. 1000 \u00f7 260 = 3.85 (to 2 decimal places). <br>Therefore 4 servings would be needed to reach the required amount of Calcium .\\\"\\n  },\\n  {\\n    \\\"question\\\":\\\"What percentage (by weight) of one serving, is Potassium?\\\",\\n    \\\"answer\\\":\\\"0.4%\\\",\\n    \\\"distractor1\\\":\\\"4%\\\",\\n    \\\"distractor2\\\":\\\"2.35%\\\",\\n    \\\"distractor3\\\":\\\"6%\\\",\\n    \\\"feedback\\\":\\\"One serving weighs 55 g. <br>Convert this to milligrams by multiplying by 1000. One serving weighs 55 000 mg. <br>What proportion of 55 000 mg is 235 mg? <br>235 \u00f7 55 000 x 100 = 0.427%. <br>The closest answer is therefore 0.4%.\\\"\\n  },\\n  {\\n    \\\"question\\\":\\\"What percentage (by weight) of one serving, is Added Sugar?\\\",\\n    \\\"answer\\\":\\\"18%\\\",\\n    \\\"distractor1\\\":\\\"20%\\\",\\n    \\\"distractor2\\\":\\\"5.5%\\\",\\n    \\\"distractor3\\\":\\\"10%\\\",\\n    \\\"feedback\\\":\\\"Added Sugars are 10 g out of the 55 g serving. <br>To convert this proportion to a percentage, calculate 10 \u00f7 55 x 100 = 18.18. <br>Therefore around 18% of the snack is Added Sugar.\\\"\\n  },\\n  {\\n    \\\"question\\\":\\\"How many times more Iron, by weight, is there in one serving of the snack, compared to Vitamin D? Note that there are 1000  micrograms in 1 milligram, and microgram can be abbreviated to mcg.\\\",\\n    \\\"answer\\\":\\\"4000\\\",\\n    \\\"distractor1\\\":\\\"400\\\",\\n    \\\"distractor2\\\":\\\"45\\\",\\n    \\\"distractor3\\\":\\\"4.5\\\",\\n    \\\"feedback\\\":\\\"Convert 8 mg of Iron to micrograms. <br>8 x 1000 = 8000. <br>There are 8000 micrograms of Iron in one serving. <br>Then divide 8000 micrograms (Iron) by 2 micrograms (Vitamin D). <br>8000 \u00f7 2 = 4000. <br>There is 4000 times more Iron, by weight, in the snack, than Vitamin D.\\\"\\n  },\\n  {\\n    \\\"question\\\":\\\"Which of the following contributes the largest mass to one serving of the snack?\\\",\\n    \\\"answer\\\":\\\"Protein\\\",\\n    \\\"distractor1\\\":\\\"Sodium\\\",\\n    \\\"distractor2\\\":\\\"Calcium\\\",\\n    \\\"distractor3\\\":\\\"Saturated Fat\\\",\\n    \\\"feedback\\\":\\\"Protein and Saturated Fat are measured in grams. Sodium and Calcium are measured in milligrams. <br>One milligram is one thousand times smaller than a gram. <br>Therefore the largest weight in one serving, from the options given, is Protein at 3 grams.\\\"\\n  },\\n  {\\n    \\\"question\\\":\\\"In one serving, what is the total mass of Vitamin D, Calcium and Iron? Note that there are 1000 micrograms in 1 milligram, and microgram can be abbreviated to mcg.\\\",\\n    \\\"answer\\\":\\\"268.002 mg\\\",\\n    \\\"distractor1\\\":\\\"268.02 mg\\\",\\n    \\\"distractor2\\\":\\\"26 802 micrograms\\\",\\n    \\\"distractor3\\\":\\\"2 682 micrograms\\\",\\n    \\\"feedback\\\":\\\"Convert the Vitamin D mass to milligrams. <br>2 \u00f7 1000 = 0.002. <br>Add the three masses in milligrams. 0.002 + 260 + 8 = 268.002. <br>The total mass of the three vitamins and minerals is 268.002 mg.\\\"\\n  }\\n]\"))", "description": "<p>The list of all potential questions, answers, distractors and feedback (advice).</p>", "templateType": "json", "can_override": false}, "scenario": {"name": "scenario", "group": "Ungrouped variables", "definition": "random(scenarios)", "description": "<p>The particular scenario for the current question.</p>", "templateType": "anything", "can_override": false}, "prompt": {"name": "prompt", "group": "Ungrouped variables", "definition": "scenario[\"question\"]", "description": "<p>The randomly selected question.</p>", "templateType": "anything", "can_override": false}, "ans": {"name": "ans", "group": "Ungrouped variables", "definition": "scenario[\"answer\"]", "description": "<p>The correct answer for the randomly selected question.</p>", "templateType": "anything", "can_override": false}, "dis1": {"name": "dis1", "group": "Ungrouped variables", "definition": "scenario[\"distractor1\"]", "description": "<p>The first incorrect answer for the randomly selected question.</p>", "templateType": "anything", "can_override": false}, "dis2": {"name": "dis2", "group": "Ungrouped variables", "definition": "scenario[\"distractor2\"]", "description": "<p>The second incorrect answer for the randomly selected question.</p>", "templateType": "anything", "can_override": false}, "dis3": {"name": "dis3", "group": "Ungrouped variables", "definition": "scenario[\"distractor3\"]", "description": "<p>The third&nbsp;incorrect answer for the randomly selected question.</p>", "templateType": "anything", "can_override": false}, "advice": {"name": "advice", "group": "Ungrouped variables", "definition": "scenario[\"feedback\"]", "description": "<p>The&nbsp;advice (feedback) for the randomly selected question.</p>", "templateType": "anything", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["scenarios", "scenario", "prompt", "ans", "dis1", "dis2", "dis3", "advice"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "1_n_2", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>{prompt}</p>", "minMarks": 0, "maxMarks": 0, "shuffleChoices": true, "displayType": "radiogroup", "displayColumns": 0, "showCellAnswerState": true, "choices": ["{ans}", "{dis1}", "{dis2}", "{dis3}"], "matrix": ["1", 0, 0, 0], "distractors": ["Well done! You are correct.", "", "", ""]}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "type": "question", "contributors": [{"name": "Adelle Colbourn", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/2083/"}], "resources": ["question-resources/FDA_Nutrition_Facts_Label_2016_300.png"]}]}], "contributors": [{"name": "Adelle Colbourn", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/2083/"}]}