Transcript: second_law_of_motion_20251014_044805.html

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    "slide": 1,
    "fragments": [
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        "text_description": "Second Law of Motion\nWhere every push decides the pace.",
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    ]
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  {
    "slide": 2,
    "fragments": [
      {
        "fragment_index": 1,
        "text_description": "Multiple Choice Question",
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      {
        "fragment_index": 2,
        "text_description": "Question\nYou kick a football softly and then kick the same ball harder. What will the harder kick do?",
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      },
      {
        "fragment_index": 3,
        "text_description": "1\nMake the ball move faster.",
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      },
      {
        "fragment_index": 4,
        "text_description": "2\nKeep the ball still.",
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      },
      {
        "fragment_index": 5,
        "text_description": "3\nMake the ball lighter.",
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      },
      {
        "fragment_index": 6,
        "text_description": "4\nChange the ball's color.",
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      },
      {
        "fragment_index": 7,
        "text_description": "Hint:\nThink about how speed changes when the push becomes stronger.",
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      },
      {
        "fragment_index": 8,
        "text_description": "Submit Answer",
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        "text_description": "Correct!\nYes! A stronger force causes a greater change in speed, so the ball moves faster.\nIncorrect\nRemember, force changes how quickly an object speeds up. Try again!\nconst correctOption = 0;\n        const answerCards = document.querySelectorAll('.answer-card');\n        const submitBtn = document.getElementById('submitBtn');\n        const feedbackCorrect = document.getElementById('feedbackCorrect');\n        const feedbackIncorrect = document.getElementById('feedbackIncorrect');\n\n        let selectedOption = null;\n\n        answerCards.forEach((card, index) => {\n            card.addEventListener('click', () => {\n                answerCards.forEach(c => c.classList.remove('border-blue-500', 'bg-blue-50'));\n                card.classList.add('border-blue-500', 'bg-blue-50');\n                selectedOption = index;\n            });\n        });\n\n        submitBtn.addEventListener('click', () => {\n            if (selectedOption === null) return;\n\n            if (selectedOption === correctOption) {\n                feedbackCorrect.classList.remove('hidden');\n                feedbackIncorrect.classList.add('hidden');\n            } else {\n                feedbackIncorrect.classList.remove('hidden');\n                feedbackCorrect.classList.add('hidden');\n            }\n        });",
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  {
    "slide": 3,
    "fragments": [
      {
        "fragment_index": 1,
        "text_description": "Momentum",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Momentum (p)",
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      },
      {
        "fragment_index": 3,
        "text_description": "Momentum is the product of mass and velocity, \\(p = m \\times v\\). It represents mass in motion and shows how hard an object is to stop.",
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      }
    ]
  },
  {
    "slide": 4,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Second Law Formula",
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      },
      {
        "fragment_index": 1,
        "text_description": "\\[F = m \\times a\\]\nForce equals mass multiplied by the acceleration produced.",
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      },
      {
        "fragment_index": 2,
        "text_description": "Variable Definitions\nF\nForce (newton, N)\nm\nMass (kilogram, kg)\na\nAcceleration (m/s²)",
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      },
      {
        "fragment_index": 3,
        "text_description": "Applications\nPushing a Cart\nHeavier carts need more force to reach the same speed.\nKicking a Football\nA stronger kick (greater force) gives the ball faster acceleration.",
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      }
    ]
  },
  {
    "slide": 5,
    "fragments": [
      {
        "fragment_index": 1,
        "text_description": "Force vs Acceleration\nFixed mass (2 kg): force increases linearly with acceleration.",
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      },
      {
        "fragment_index": -1,
        "text_description": "Graph: straight line through origin, slope = mass (2 kg).",
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      },
      {
        "fragment_index": 2,
        "text_description": "What the graph shows\nLinearity means \\(F = ma\\). Holding mass constant makes force directly proportional to acceleration.",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Slope of the line is 2 N per m/s² (mass).\nAcceleration doubles → force doubles (1→2 m/s² gives 2→4 N).\nEvery plotted point obeys \\(F = ma\\).",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "Tip: A heavier object shifts the line steeper—same rule, larger slope.",
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      }
    ]
  },
  {
    "slide": 6,
    "fragments": []
  },
  {
    "slide": 7,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Worked Example\nQuestion: What force is required to give a 3 kg box an acceleration of 2 m/s²?",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "1\nList the data\nMass \\(m = 3\\,\\text{kg}\\); acceleration \\(a = 2\\,\\text{m/s}^2\\).",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "2\nRecall the law\nSecond law: \\(F = m \\times a\\).",
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      },
      {
        "fragment_index": 3,
        "text_description": "3\nSubstitute values\n\\(F = 3\\,\\text{kg} \\times 2\\,\\text{m/s}^2\\).",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "4\nCalculate force\n\\(F = 6\\,\\text{N}\\). A 6 newton push is needed.",
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      },
      {
        "fragment_index": 5,
        "text_description": "Pro Tip:\nWrite units at every step. It shows understanding and prevents calculation slips.",
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      }
    ]
  },
  {
    "slide": 8,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Key Takeaways",
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      },
      {
        "fragment_index": 1,
        "text_description": "Formula\nNet force and acceleration link by \\(F = m a\\).",
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      },
      {
        "fragment_index": 2,
        "text_description": "Momentum View\nForce equals rate of change of momentum: \\(F = \\frac{\\Delta p}{\\Delta t}\\).",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "More Force\nBigger force → bigger acceleration for the same mass.",
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      },
      {
        "fragment_index": 4,
        "text_description": "More Mass\nHeavier mass → smaller acceleration with the same force.",
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      }
    ]
  }
]