Transcript: second_law_of_motion_20250828_092352.html

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[
  {
    "slide": 1,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Push, Mass & Zoom!\nMore push or less mass makes motion dash!",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 2,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Newton’s 2nd Law",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "Law Statement",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Acceleration of an object depends directly on the applied force and inversely on its mass. Stronger push speeds it up; heavier load slows acceleration.",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Think-pair-share: What happens if force and mass increase at the same time?",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 3,
    "fragments": []
  },
  {
    "slide": 4,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "The Magic Equation",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "\\[F = m \\times a\\]",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Variable Definitions\nF\nForce (newton, N)\nm\nMass (kilogram, kg)\na\nAcceleration (m/s²)",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Applications",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "Rocket launch\nEngines expel gas; large mass still accelerates upward.",
        "image_description": ""
      },
      {
        "fragment_index": 5,
        "text_description": "Car braking\nBrakes apply force to cut the car’s forward acceleration.",
        "image_description": ""
      },
      {
        "fragment_index": 6,
        "text_description": "Throwing a ball\nGreater force on the ball gives it higher acceleration.",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 5,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Force vs Acceleration",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "Straight-line graph of force vs acceleration (m = 1 kg)",
        "image_description": "https://asset.sparkl.ac/pb/sparkl-vector-images/img_ncert/93vVWBOBy2niFTTnBgctXhZjywwXFSmaOjahBNMO.png"
      },
      {
        "fragment_index": 2,
        "text_description": "Direct Proportion: \\(a \\propto F\\)\nThe graph plots force on the x-axis and acceleration on the y-axis.\nA 1 N push gives 1 m/s²; 2 N gives 2 m/s². The straight line through the origin shows a constant slope.",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Key Points:\nMass is fixed at 1 kg.\nSlope of line = \\( \\frac{1}{m} = 1\\;\\text{kg}^{-1} \\).",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 6,
    "fragments": [
      {
        "fragment_index": 1,
        "text_description": "Worked Example\nA force of 10 N acts on a 2 kg box. Find its acceleration.",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "1\nWrite formula\n\\(F = m \\times a\\)",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "2\nRearrange\n\\(a = \\frac{F}{m}\\)",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "3\nSubstitute numbers\n\\(a = \\frac{10\\ \\text{N}}{2\\ \\text{kg}}\\)",
        "image_description": ""
      },
      {
        "fragment_index": 5,
        "text_description": "4\nSolve\n\\(a = 5\\ \\text{m/s}^2\\)",
        "image_description": ""
      },
      {
        "fragment_index": 6,
        "text_description": "Tip: Always keep units with every number.",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 7,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Multiple Choice Question\nSubmit Answer\nCorrect!\nExactly! Acceleration is directly proportional to force.\nIncorrect\nNot quite. Try recalling the formula a = F/m.\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        });",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "Question\nIf the force on an object is doubled while its mass stays the same, what happens to its acceleration?",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "1\nIt doubles",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "2\nIt halves",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "3\nIt stays the same",
        "image_description": ""
      },
      {
        "fragment_index": 5,
        "text_description": "4\nIt becomes zero",
        "image_description": ""
      },
      {
        "fragment_index": 6,
        "text_description": "Hint:\nLook back at the straight line graph.",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 8,
    "fragments": [
      {
        "fragment_index": 1,
        "text_description": "Key Takeaways\nRemember these points",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "💪\nMore Force ➜ More Speed-up\nPush harder and the object accelerates faster.",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "🏋️\nMore Mass ➜ Less Speed-up\nHeavier objects need a bigger push.",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "🧮\nEquation \\(F = m \\times a\\)\nA simple multiplication links the three quantities.",
        "image_description": ""
      },
      {
        "fragment_index": 5,
        "text_description": "📊\nStraight-Line Graph\nForce vs acceleration is a straight line through origin when mass is constant.",
        "image_description": ""
      }
    ]
  }
]