Relativite — Quiz — Equivalence Masse Energie

{
  "quiz_title": "Equivalence Masse Energie",
  "quiz_slug": "08_equivalence_masse_energie_quiz",
  "quiz_description": "Quiz Edu509 : Equivalence Masse Energie",
  "quiz_settings": {
    "time_limit": {
      "time_value": 0,
      "time_type": "minutes"
    },
    "hide_quiz_time_display": false,
    "attempts_allowed": 0,
    "passing_grade": 70,
    "max_questions_for_answer": 0,
    "questions_order": "rand",
    "hide_question_number_overview": false,
    "short_answer_characters_limit": 200
  },
  "questions": [
    {
      "question_order": 1,
      "question_title": "Quelle est la formule fondamentale de l’équivalence masse-énergie selon Einstein ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "La formule fondamentale de l’équivalence masse-énergie est \\\\( E = m c^2 \\\\), où \\\\( E \\\\) est l’énergie, \\\\( m \\\\) la masse et \\\\( c \\\\) la vitesse de la lumière.",
      "answers": [
        {
          "answer_title": "\\\\( E = m c^2 \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( E = m g h \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( E = \\\\frac{1}{2} m v^2 \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( E = q V \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 2,
      "question_title": "Quelle énergie de repos possède un objet de masse \\\\( 1,5 \\\\mathrm{kg} \\\\) ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "On applique \\\\( E = m c^2 = 1,5 \\\\times (3,00 \\\\times 10^8)^2 = 1,5 \\\\times 9,00 \\\\times 10^{16} = 1,35 \\\\times 10^{17} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 1,35 \\\\times 10^{17} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 4,5 \\\\times 10^{16} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 9,0 \\\\times 10^{16} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 2,25 \\\\times 10^{17} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 3,
      "question_title": "Lors d’une réaction nucléaire, \\\\( 0,00050 \\\\mathrm{kg} \\\\) de masse disparaît. Quelle énergie est libérée ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "On utilise \\\\( \\\\Delta E = \\\\Delta m c^2 = 0,00050 \\\\times 9,00 \\\\times 10^{16} = 4,5 \\\\times 10^{13} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 4,5 \\\\times 10^{13} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 9,0 \\\\times 10^{13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 5,0 \\\\times 10^{12} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 1,5 \\\\times 10^{14} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 4,
      "question_title": "Quelle est la valeur de la vitesse de la lumière dans le vide utilisée dans la formule d’Einstein ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "La vitesse de la lumière dans le vide est \\\\( 3,00 \\\\times 10^8 \\\\mathrm{m/s} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 3,00 \\\\times 10^8 \\\\mathrm{m/s} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 3,00 \\\\times 10^6 \\\\mathrm{m/s} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 1,50 \\\\times 10^8 \\\\mathrm{m/s} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 9,81 \\\\mathrm{m/s}^2 \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 5,
      "question_title": "Quelle énergie correspond à la disparition de \\\\( 2,0 \\\\mathrm{g} \\\\) de matière ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "On convertit \\\\( 2,0 \\\\mathrm{g} = 0,0020 \\\\mathrm{kg} \\\\), puis \\\\( \\\\Delta E = 0,0020 \\\\times 9,00 \\\\times 10^{16} = 1,8 \\\\times 10^{14} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 1,8 \\\\times 10^{14} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 1,8 \\\\times 10^{13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 9,0 \\\\times 10^{13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 3,6 \\\\times 10^{14} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 6,
      "question_title": "Quelle est l’énergie de repos d’un proton de masse \\\\( 1,67 \\\\times 10^{-27} \\\\mathrm{kg} \\\\) ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "On applique \\\\( E = m c^2 = 1,67 \\\\times 10^{-27} \\\\times 9,00 \\\\times 10^{16} = 1,50 \\\\times 10^{-10} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 1,50 \\\\times 10^{-10} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 1,67 \\\\times 10^{-27} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 5,01 \\\\times 10^{-11} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 9,00 \\\\times 10^{-10} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 7,
      "question_title": "Combien d’énergie libère la perte de \\\\( 0,25 \\\\mathrm{mg} \\\\) de masse lors d’une réaction nucléaire ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "On convertit \\\\( 0,25 \\\\mathrm{mg} = 2,5 \\\\times 10^{-7} \\\\mathrm{kg} \\\\), puis \\\\( \\\\Delta E = 2,5 \\\\times 10^{-7} \\\\times 9,00 \\\\times 10^{16} = 2,25 \\\\times 10^{10} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 2,25 \\\\times 10^{10} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 2,25 \\\\times 10^{11} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 2,25 \\\\times 10^{9} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 9,00 \\\\times 10^{10} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 8,
      "question_title": "Quelle énergie (en MeV) correspond à \\\\( 1,00 \\\\mathrm{u} \\\\) de masse ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "1 unité de masse atomique correspond à \\\\( 1,6605 \\\\times 10^{-27} \\\\mathrm{kg} \\\\). \\\\( E = 1,6605 \\\\times 10^{-27} \\\\times 9,00 \\\\times 10^{16} = 1,49445 \\\\times 10^{-10} \\\\mathrm{J} \\\\). En MeV : \\\\( \\\\frac{1,49445 \\\\times 10^{-10}}{1,602 \\\\times 10^{-13}} = 931 \\\\mathrm{MeV} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 931 \\\\mathrm{MeV} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 1,00 \\\\mathrm{MeV} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 1,602 \\\\mathrm{MeV} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 660 \\\\mathrm{MeV} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 9,
      "question_title": "Quelle énergie (en joules) correspond à \\\\( 2,0 \\\\mathrm{MeV} \\\\) ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "1 MeV = \\\\( 1,602 \\\\times 10^{-13} \\\\mathrm{J} \\\\), donc \\\\( 2,0 \\\\mathrm{MeV} = 2,0 \\\\times 1,602 \\\\times 10^{-13} = 3,204 \\\\times 10^{-13} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 3,204 \\\\times 10^{-13} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 1,602 \\\\times 10^{-13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 2,0 \\\\times 10^{-13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 3,204 \\\\times 10^{-12} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 10,
      "question_title": "Dans une réaction de fusion, la masse totale diminue de \\\\( 4,0 \\\\times 10^{-29} \\\\mathrm{kg} \\\\). Quelle énergie est libérée ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "On applique \\\\( \\\\Delta E = 4,0 \\\\times 10^{-29} \\\\times 9,00 \\\\times 10^{16} = 3,6 \\\\times 10^{-12} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 3,6 \\\\times 10^{-12} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 4,0 \\\\times 10^{-12} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 9,0 \\\\times 10^{-13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 2,7 \\\\times 10^{-12} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 11,
      "question_title": "Quelle affirmation est correcte concernant l’équivalence masse-énergie ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "L’équivalence masse-énergie montre qu’une petite masse correspond à une énergie immense grâce au facteur \\\\( c^2 \\\\).",
      "answers": [
        {
          "answer_title": "Une petite masse peut se transformer en une grande quantité d’énergie.",
          "is_correct": false,
          "answer_order": 1
        },
        {
          "answer_title": "La masse et l’énergie sont totalement indépendantes.",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "La formule \\\\( E = m c^2 \\\\) ne s’applique qu’aux réactions chimiques.",
          "is_correct": true,
          "answer_order": 3
        },
        {
          "answer_title": "La vitesse de la lumière n’intervient pas dans la conversion.",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 12,
      "question_title": "Quelle énergie (en joules) correspond à \\\\( 1,00 \\\\times 10^{20} \\\\) électrons-volts (eV) ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "1 eV = \\\\( 1,602 \\\\times 10^{-19} \\\\mathrm{J} \\\\), donc \\\\( 1,00 \\\\times 10^{20} \\\\mathrm{eV} = 1,602 \\\\times 10^{1} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 1,602 \\\\times 10^{1} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 1,602 \\\\times 10^{-19} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 1,00 \\\\times 10^{20} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 1,602 \\\\times 10^{3} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 13,
      "question_title": "Un électron et un positron s’annihilent. Quelle énergie totale est libérée (en MeV) ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "La masse totale disparue est \\\\( 2 \\\\times 9,11 \\\\times 10^{-31} \\\\mathrm{kg} \\\\). L’énergie libérée est \\\\( 1,02 \\\\mathrm{MeV} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 1,02 \\\\mathrm{MeV} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 0,511 \\\\mathrm{MeV} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 2,04 \\\\mathrm{MeV} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 0,256 \\\\mathrm{MeV} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 14,
      "question_title": "Quelle est la signification physique de \\\\( c^2 \\\\) dans la formule \\\\( E = m c^2 \\\\) ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "Le terme \\\\( c^2 \\\\) convertit la masse (en kg) en énergie (en J), car \\\\( c \\\\) est très grand, une petite masse donne une grande énergie.",
      "answers": [
        {
          "answer_title": "C’est le facteur de conversion entre la masse et l’énergie.",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "C’est la vitesse maximale d’un objet ordinaire.",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "C’est la constante de gravitation universelle.",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "C’est la charge élémentaire.",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 15,
      "question_title": "Quelle énergie (en joules) correspond à la perte de \\\\( 1,0 \\\\mathrm{mg} \\\\) de masse ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "On convertit \\\\( 1,0 \\\\mathrm{mg} = 1,0 \\\\times 10^{-6} \\\\mathrm{kg} \\\\), puis \\\\( \\\\Delta E = 1,0 \\\\times 10^{-6} \\\\times 9,00 \\\\times 10^{16} = 9,0 \\\\times 10^{10} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 9,0 \\\\times 10^{10} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 9,0 \\\\times 10^{11} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 1,0 \\\\times 10^{10} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 1,0 \\\\times 10^{11} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 16,
      "question_title": "Quelle énergie (en joules) correspond à \\\\( 5,0 \\\\times 10^{-3} \\\\mathrm{kg} \\\\) de masse ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "On applique \\\\( \\\\Delta E = 5,0 \\\\times 10^{-3} \\\\times 9,00 \\\\times 10^{16} = 4,5 \\\\times 10^{14} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 4,5 \\\\times 10^{14} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 9,0 \\\\times 10^{13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 5,0 \\\\times 10^{13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 1,5 \\\\times 10^{14} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 17,
      "question_title": "Quelle est la valeur de \\\\( (3,00 \\\\times 10^8)^2 \\\\) ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "Le carré de \\\\( 3,00 \\\\times 10^8 \\\\) est \\\\( 9,00 \\\\times 10^{16} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 9,00 \\\\times 10^{16} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 3,00 \\\\times 10^{16} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 6,00 \\\\times 10^{16} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 9,00 \\\\times 10^{8} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 18,
      "question_title": "Quelle énergie (en joules) correspond à \\\\( 3,0 \\\\mathrm{g} \\\\) de masse ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "On convertit \\\\( 3,0 \\\\mathrm{g} = 0,0030 \\\\mathrm{kg} \\\\), puis \\\\( \\\\Delta E = 0,0030 \\\\times 9,00 \\\\times 10^{16} = 2,7 \\\\times 10^{14} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 2,7 \\\\times 10^{14} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 9,0 \\\\times 10^{13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 3,0 \\\\times 10^{14} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 1,8 \\\\times 10^{14} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 19,
      "question_title": "Quelle énergie (en joules) correspond à \\\\( 1,0 \\\\mathrm{u} \\\\) de masse ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "On applique \\\\( E = 1,6605 \\\\times 10^{-27} \\\\times 9,00 \\\\times 10^{16} = 1,49445 \\\\times 10^{-10} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 1,49445 \\\\times 10^{-10} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 1,6605 \\\\times 10^{-27} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 9,00 \\\\times 10^{-10} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 1,602 \\\\times 10^{-13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    },
    {
      "question_order": 20,
      "question_title": "Lors d’une fission, \\\\( 0,0025 \\\\mathrm{kg} \\\\) de masse disparaît. Quelle énergie est libérée ?",
      "question_type": "single_choice",
      "question_mark": 1,
      "answer_required": true,
      "randomize_question": false,
      "show_question_mark": true,
      "question_description": "",
      "question_explanation": "On applique \\\\( \\\\Delta E = 0,0025 \\\\times 9,00 \\\\times 10^{16} = 2,25 \\\\times 10^{14} \\\\mathrm{J} \\\\).",
      "answers": [
        {
          "answer_title": "\\\\( 2,25 \\\\times 10^{14} \\\\mathrm{J} \\\\)",
          "is_correct": true,
          "answer_order": 1
        },
        {
          "answer_title": "\\\\( 2,25 \\\\times 10^{13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 2
        },
        {
          "answer_title": "\\\\( 9,0 \\\\times 10^{13} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 3
        },
        {
          "answer_title": "\\\\( 1,8 \\\\times 10^{14} \\\\mathrm{J} \\\\)",
          "is_correct": false,
          "answer_order": 4
        }
      ]
    }
  ]
}