// Numbas version: exam_results_page_options
{"name": "Radioactivity and units of measurement 1", "extensions": ["eukleides", "stats", "jsxgraph", "permutations", "geogebra", "random_person", "codewords", "polynomials", "chemistry", "quantities"], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"extensions": ["chemistry", "eukleides", "geogebra", "jsxgraph", "codewords", "permutations", "polynomials", "quantities", "random_person", "stats", "visjs"], "parts": [{"extendBaseMarkingAlgorithm": true, "showCorrectAnswer": true, "prompt": "<p>Calculate the number of bequerel ($Bq$) in:</p>\n<ul>\n<li>$ \\var{13/16 b} \\cdot 10^{-\\var{a}} \\ Ci =$&nbsp;[[0]]$Bq$</li>\n<li>$ \\var{1/10 a}&nbsp; \\cdot 10^{-\\var{b}} \\ Ci =$ [[1]]$Bq$</li>\n<li>$ \\var{9/5 c} \\cdot 10^{-\\var{d}} Ci =$&nbsp;[[2]]$Bq$</li>\n<li>$ \\var{17/8 f} \\cdot 10^{-\\var{c}}\\ Ci =$&nbsp;[[3]]$Bq$</li>\n<li>$ \\var{3/4 a} \\cdot 10^{-\\var{f}}\\ Ci =$&nbsp;[[4]]$Bq$</li>\n</ul>\n<p>Write all the digits (do not use the scientific notation) and approximate to the nearest integer if necessary.&nbsp;</p>", "variableReplacements": [], "type": "gapfill", "marks": 0, "adaptiveMarkingPenalty": 0, "sortAnswers": false, "customName": "", "showFeedbackIcon": true, "variableReplacementStrategy": "originalfirst", "unitTests": [], "customMarkingAlgorithm": "", "scripts": {}, "useCustomName": false, "gaps": [{"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer11}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer21}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer31}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer41}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer51}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}]}, {"extendBaseMarkingAlgorithm": true, "showCorrectAnswer": true, "prompt": "<p>Calculate the number of bequerel ($Bq$) in:</p>\n<ul>\n<li>$ \\var{0.1 b} \\ \\mu Ci =$&nbsp;[[0]]$ \\&nbsp; kBq$</li>\n<li>$ \\var{0.1&nbsp;a} \\ p&nbsp;Ci =$&nbsp;[[1]]$ \\ mBq$</li>\n<li>$ \\var{100 c} \\&nbsp; &nbsp;fCi =$&nbsp;[[2]]$ \\ \\mu Bq$</li>\n<li>$ \\var{f} \\ n Ci =$&nbsp;[[3]]$ \\ dBq$</li>\n<li>$ \\var{10 a} \\&nbsp; &nbsp;Ci =$&nbsp;[[4]]$ \\ GBq$</li>\n</ul>\n<p>Write all the digits (do not use the scientific notation) and approximate to the nearest integer if necessary.&nbsp;</p>", "variableReplacements": [], "type": "gapfill", "marks": 0, "adaptiveMarkingPenalty": 0, "sortAnswers": false, "customName": "", "showFeedbackIcon": true, "variableReplacementStrategy": "originalfirst", "unitTests": [], "customMarkingAlgorithm": "", "scripts": {}, "useCustomName": false, "gaps": [{"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer13}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer23}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer33}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer43}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer53}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}]}, {"extendBaseMarkingAlgorithm": true, "showCorrectAnswer": true, "prompt": "<p>Calculate the number of curie ($Ci$) in:</p>\n<ul>\n<li>$ \\var{4/5 a} \\cdot 10^{\\var{f+d}} \\ Bq =$&nbsp;[[0]]$Ci$</li>\n<li>$ \\var{1/8 f}&nbsp; \\cdot 10^{\\var{b+c}} \\ Bq =$&nbsp;[[1]]$Ci$</li>\n<li>$ \\var{9/5 a} \\cdot 10^{\\var{c+a}} Bq =$&nbsp;[[2]]$Ci$</li>\n<li>$ \\var{12/5 c} \\cdot 10^{\\var{a+f}}\\ Bq =$&nbsp;[[3]]$Ci$</li>\n<li>$ \\var{3/4 b} \\cdot 10^{\\var{d+a}}\\ Bq =$&nbsp;[[4]]$Ci$</li>\n</ul>\n<p>Write all the digits (do not use the scientific notation) and approximate to the nearest integer if necessary.&nbsp;</p>", "variableReplacements": [], "type": "gapfill", "marks": 0, "adaptiveMarkingPenalty": 0, "sortAnswers": false, "customName": "", "showFeedbackIcon": true, "variableReplacementStrategy": "originalfirst", "unitTests": [], "customMarkingAlgorithm": "", "scripts": {}, "useCustomName": false, "gaps": [{"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer12}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer22}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer32}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer42}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer52}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}]}, {"extendBaseMarkingAlgorithm": true, "showCorrectAnswer": true, "prompt": "<p>Calculate the number of&nbsp;curie ($Ci$) in:</p>\n<ul>\n<li>$ \\var{b} \\&nbsp;T Bq =$&nbsp;[[0]]$ \\ dCi$</li>\n<li>$ \\var{1/8a} \\ G&nbsp;Bq =$&nbsp;[[1]]$&nbsp;\\ m Ci$</li>\n<li>$ \\var{100 f} \\ MBq =$&nbsp;[[2]]$ \\ \\mu Ci$</li>\n<li>$ \\var{0.1c} \\ k Bq =$&nbsp;[[3]]$ \\ pCi$</li>\n<li>$ \\var{17/5&nbsp;&nbsp;a} \\ M Bq =$&nbsp;[[4]]$ fCi$</li>\n</ul>\n<p>Write all the digits (do not use the scientific notation) and approximate to the nearest integer if necessary.&nbsp;</p>", "variableReplacements": [], "type": "gapfill", "marks": 0, "adaptiveMarkingPenalty": 0, "sortAnswers": false, "customName": "", "showFeedbackIcon": true, "variableReplacementStrategy": "originalfirst", "unitTests": [], "customMarkingAlgorithm": "", "scripts": {}, "useCustomName": false, "gaps": [{"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer14}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer24}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer34}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer44}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "answer": "{answer54}", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}]}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "prompt": "<p>If&nbsp;the weighting factor for a determinate radiation is $W_R=\\var{a}$ and the energy absorbed by an object on units of mass (absorbed dose) is $D_R= \\var{c} \\ Gy$, find the equivalent dose $H_R$ using the correct unit of measurement.&nbsp;</p>", "answer": "{a c} Sv", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [{"value": "", "name": "sv"}], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"checkingAccuracy": 0.001, "extendBaseMarkingAlgorithm": true, "prompt": "<p>Suppose to irradiate an organic tissue of mass $m=\\var{c} \\ kg$ with a gamma-rays radiation ($W_R=1$). Using a dosimeter you find out that the absorbed dose is $D_R=\\var{f} \\ Gy $.&nbsp;Which&nbsp;would have been the equivalent dose if the mass of the object was $m=\\var{a} \\ kg$? (Use the right unit of measurement)</p>", "answer": "{mult} Sv", "adaptiveMarkingPenalty": 0, "checkingType": "absdiff", "failureRate": 1, "showFeedbackIcon": true, "customName": "", "checkVariableNames": false, "unitTests": [], "customMarkingAlgorithm": "", "showPreview": true, "scripts": {}, "showCorrectAnswer": true, "variableReplacements": [], "marks": 1, "vsetRange": [0, 1], "valuegenerators": [{"value": "", "name": "mult"}, {"value": "", "name": "sv"}], "useCustomName": false, "variableReplacementStrategy": "originalfirst", "type": "jme", "vsetRangePoints": 5}, {"extendBaseMarkingAlgorithm": true, "prompt": "<p>A&nbsp;common isotope of {isotope} decays with an activity of {radioactivity} $GBq/g$ which means that a gram of&nbsp;{isotope} has&nbsp;{decays} decays per second. How many {isotope} atoms would decay in $\\var{time}$ minutes if you&nbsp;observe a sample of {mass} $ng$? (Write the whole number, without using the scientific notation).</p>", "mustBeReducedPC": 0, "adaptiveMarkingPenalty": 0, "allowFractions": false, "mustBeReduced": false, "showFeedbackIcon": true, "customName": "", "unitTests": [], "maxValue": "risultato", "correctAnswerStyle": "plain", "scripts": {}, "useCustomName": false, "customMarkingAlgorithm": "", "showCorrectAnswer": true, "minValue": "risultato", "variableReplacements": [], "marks": 1, "notationStyles": ["plain", "en", "si-en"], "showFractionHint": true, "variableReplacementStrategy": "originalfirst", "type": "numberentry", "correctAnswerFraction": false}], "statement": "<p>Answer the followiong questions.</p>", "rulesets": {}, "ungrouped_variables": ["a", "b", "c", "d", "f", "answer11", "answer21", "answer31", "answer41", "answer51", "answer12", "answer22", "answer32", "answer42", "answer52"], "variables": {"answer31": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "round((6.66*c)*10^(10-d))", "name": "answer31"}, "mass": {"templateType": "anything", "group": "Scenarios", "description": "", "definition": "scenario[\"mass\"]", "name": "mass"}, "answer32": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "round((1.8*a*10^(a+c))/(3.7*10^(10)))", "name": "answer32"}, "b": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "random(1..9)", "name": "b"}, "f": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "random(1..9)", "name": "f"}, "answer14": {"templateType": "anything", "group": "Letters (scientific notation)", "description": "", "definition": "round(1000b/3.7)", "name": "answer14"}, "d": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "random(1..9)", "name": "d"}, "isotope": {"templateType": "anything", "group": "Scenarios", "description": "", "definition": "scenario[\"isotope\"]", "name": "isotope"}, "decays": {"templateType": "anything", "group": "Scenarios", "description": "", "definition": "scenario[\"decays\"]", "name": "decays"}, "answer34": {"templateType": "anything", "group": "Letters (scientific notation)", "description": "", "definition": "round(10000f/3.7)", "name": "answer34"}, "answer53": {"templateType": "anything", "group": "Letters (scientific notation)", "description": "", "definition": "370a", "name": "answer53"}, "risultato": {"templateType": "anything", "group": "Scenarios", "description": "", "definition": "(60*time*mass*radioactivity) ", "name": "risultato"}, "scenarios": {"templateType": "json", "group": "Scenarios", "description": "", "definition": "json_decode(safe(\"[\\n    {\\n        \\\"isotope\\\": \\\"uranium: $^{238}U$\\\",\\n        \\\"radioactivity\\\": 12.4,\\n        \\\"mass\\\": 10,\\n        \\\"decays\\\": \\\"$12,4 \\\\\\\\cdot 10^9$\\\"\\n    },\\n    {\\n        \\\"isotope\\\": \\\"radium: $^{226}Ra$\\\",\\n        \\\"radioactivity\\\": 37,\\n        \\\"mass\\\": 6, \\n        \\\"decays\\\": \\\"$37 \\\\\\\\cdot 10^9$\\\"\\n    },\\n    {\\n        \\\"isotope\\\": \\\"plutonium: $^{241}Pu$\\\",\\n        \\\"radioactivity\\\": 3710,\\n        \\\"mass\\\": 3.2,\\n        \\\"decays\\\": \\\"$3,71 \\\\\\\\cdot 10^{12}$\\\"\\n    },\\n    {\\n        \\\"isotope\\\": \\\"plutonium: $^{238}Pu$\\\",\\n        \\\"radioactivity\\\": 630,\\n        \\\"mass\\\": 47,\\n        \\\"decays\\\": \\\"$630 \\\\\\\\cdot 10^9$\\\"\\n    }\\n]\"))", "name": "scenarios"}, "c": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "random(1..9)", "name": "c"}, "answer44": {"templateType": "anything", "group": "Letters (scientific notation)", "description": "", "definition": "round(10000c/3.7)", "name": "answer44"}, "answer51": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "round((2.775*a)*10^(10-f))", "name": "answer51"}, "radioactivity": {"templateType": "anything", "group": "Scenarios", "description": "", "definition": "scenario[\"radioactivity\"]", "name": "radioactivity"}, "answer33": {"templateType": "anything", "group": "Letters (scientific notation)", "description": "", "definition": "round(3700c)", "name": "answer33"}, "answer22": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "round((0.125*f*10^(b+c))/(3.7*10^(10)))", "name": "answer22"}, "answer52": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "round((0.75*b*10^(a+d))/(3.7*10^(10)))", "name": "answer52"}, "a": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "random(1..9)", "name": "a"}, "answer12": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "round((0.8*a*10^(f+d))/(3.7*10^(10)))", "name": "answer12"}, "scenario": {"templateType": "anything", "group": "Scenarios", "description": "", "definition": "random(scenarios)", "name": "scenario"}, "answer13": {"templateType": "anything", "group": "Letters (scientific notation)", "description": "", "definition": "round(3.7b)", "name": "answer13"}, "answer43": {"templateType": "anything", "group": "Letters (scientific notation)", "description": "", "definition": "37f", "name": "answer43"}, "answer21": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "round((0.37*a)*10^(10-b))", "name": "answer21"}, "answer54": {"templateType": "anything", "group": "Letters (scientific notation)", "description": "", "definition": "round(34a/3.7)", "name": "answer54"}, "answer11": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "round((3.00625*b)*10^(10-a))", "name": "answer11"}, "answer23": {"templateType": "anything", "group": "Letters (scientific notation)", "description": "", "definition": "round(3.7a)", "name": "answer23"}, "time": {"templateType": "anything", "group": "Scenarios", "description": "", "definition": "random([5,2,3,4])", "name": "time"}, "answer42": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "round((2.4*c*10^(a+f))/(3.7*10^(10)))", "name": "answer42"}, "answer24": {"templateType": "anything", "group": "Letters (scientific notation)", "description": "", "definition": "round(1000a/296)", "name": "answer24"}, "answer41": {"templateType": "anything", "group": "Ungrouped variables", "description": "", "definition": "round((7.8625*f)*10^(10-c))", "name": "answer41"}}, "metadata": {"description": "<p><br></p>", "licence": "Creative Commons Attribution 4.0 International"}, "preamble": {"css": "", "js": ""}, "tags": [], "functions": {}, "name": "Radioactivity and units of measurement 1", "advice": "", "variablesTest": {"condition": "", "maxRuns": 100}, "variable_groups": [{"variables": ["answer13", "answer23", "answer33", "answer43", "answer53", "answer14", "answer24", "answer34", "answer44", "answer54"], "name": "Letters (scientific notation)"}, {"variables": ["scenarios", "time", "scenario", "mass", "isotope", "radioactivity", "decays", "risultato"], "name": "Scenarios"}], "contributors": [{"name": "Christian Lawson-Perfect", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/7/"}, {"name": "Chris Graham", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/369/"}, {"name": "Mario Orsi", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/427/"}, {"name": "Leonardo Juliano", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3600/"}]}]}], "contributors": [{"name": "Christian Lawson-Perfect", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/7/"}, {"name": "Chris Graham", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/369/"}, {"name": "Mario Orsi", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/427/"}, {"name": "Leonardo Juliano", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3600/"}]}