Transcript: Second_Law_of_Motion_20250714_094329.html

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[
  {
    "slide": 1,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Second Law of Motion\nBigger the push, quicker the motion.",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 2,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Everyday Push",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Push Harder = Faster Cart\nConcrete example: A gentle push moves the grocery cart slowly.\nObservation: A stronger push speeds it up more—greater force gives greater acceleration.",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Key Points:\nPush = force acting on the cart.\nAcceleration is the change in speed.\nDouble the push ≈ double the acceleration. What happens to the cart?",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 3,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Momentum",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "Momentum",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Momentum \\(p\\) is the quantity of motion an object has. It equals mass multiplied by velocity: \\(p = m \\times v\\). Heavier or faster objects have greater momentum and are harder to stop.",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Term introduction – your first look at momentum.",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 4,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Newton’s 2nd Law\nApplications",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "\\[ F = m\\,a \\]\nForce equals mass multiplied by acceleration.",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Variable Definitions\n\\(F\\)\nForce (newton, N)\n\\(m\\)\nMass (kilogram, kg)\n\\(a\\)\nAcceleration (m s\\(^{-2}\\))",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Kicking a Football\nA stronger kick (greater \\(F\\)) gives the ball a bigger acceleration.",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "Pushing a Heavy Cart\nThe same push on more mass (\\(m\\)) produces less acceleration.",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 5,
    "fragments": [
      {
        "fragment_index": 1,
        "text_description": "Force vs Acceleration",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Mass fixed at 2 kg",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Straight-line graph for a 2 kg object",
        "image_description": "https://asset.sparkl.ac/pb/sparkl-vector-images/img_ncert/BBgV6NcWG8UQKjluEWKPe0DRWTT9rSA4pRYfDwhj.png"
      },
      {
        "fragment_index": 4,
        "text_description": "Mass fixed at 2 kg",
        "image_description": ""
      },
      {
        "fragment_index": 5,
        "text_description": "Because \\(F = m a\\), keeping mass constant makes force grow linearly with acceleration.",
        "image_description": ""
      },
      {
        "fragment_index": 6,
        "text_description": "Key Points:\nGraph is a straight line through the origin.\nSlope equals mass: 2 N per m/s².\nDouble the acceleration → force doubles.",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 6,
    "fragments": []
  },
  {
    "slide": 7,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Multiple Choice Question\nCorrect!\nGreat! You applied \\(F = m \\times a\\) correctly.\nIncorrect\nRemember: multiply mass by acceleration to find force.\nconst correctOption = 3;\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        });",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "Question\nA 4 kg object accelerates at 2 m/s². What force acts on it?",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "1\n2 N",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "2\n4 N",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "3\n6 N",
        "image_description": ""
      },
      {
        "fragment_index": 5,
        "text_description": "4\n8 N",
        "image_description": ""
      },
      {
        "fragment_index": 6,
        "text_description": "Hint:\nUse the formula \\(F = m \\times a\\).",
        "image_description": ""
      },
      {
        "fragment_index": 7,
        "text_description": "Submit Answer",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 8,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Key Takeaways",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "Force changes motion\nA net push or pull makes an object speed up, slow down, or turn.",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Mass resists change\nHeavier objects need more force because their mass offers greater inertia.",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Acceleration links both\nAcceleration tells how fast motion changes: \\(a = \\frac{F}{m}\\).",
        "image_description": ""
      }
    ]
  }
]