Transcript: second_law_of_motion_20250826_124710.html

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  {
    "slide": 1,
    "fragments": [
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        "fragment_index": -1,
        "text_description": "Second Law of Motion\nForce meets mass—watch acceleration come alive!",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 2,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Law in Simple Words",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "Newton’s Second Law",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Push harder and an object speeds up more. If the object is heavier, it speeds up less with the same push.",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Which will speed up more with the same push: a loaded shopping cart or an empty one?",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 3,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "The Equation",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "\\[F = m \\times a\\]",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Variable Definitions",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "F\nForce  (N)",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "m\nMass  (kg)",
        "image_description": ""
      },
      {
        "fragment_index": 5,
        "text_description": "a\nAcceleration  (m/s²)",
        "image_description": ""
      },
      {
        "fragment_index": 6,
        "text_description": "Know any two variables to find the third.",
        "image_description": ""
      },
      {
        "fragment_index": 7,
        "text_description": "Applications",
        "image_description": ""
      },
      {
        "fragment_index": 8,
        "text_description": "Finding Force\nCompute push required to speed up a trolley.",
        "image_description": ""
      },
      {
        "fragment_index": 9,
        "text_description": "Finding Mass\nEstimate mass when force and acceleration are known.",
        "image_description": ""
      },
      {
        "fragment_index": 10,
        "text_description": "Finding Acceleration\nPredict how fast a scooter speeds up under a given force.",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 4,
    "fragments": [
      {
        "fragment_index": 1,
        "text_description": "Cause & Effect\nRelationship examples—see how force or mass changes acceleration.",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "1\nDouble the force\nMass same ⇒ acceleration doubles.",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "2\nDouble the mass\nForce same ⇒ acceleration halves.",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "3\nNo net force\nAcceleration is zero; speed and direction stay same.",
        "image_description": ""
      },
      {
        "fragment_index": 5,
        "text_description": "Remember: \\(a = \\frac{F}{m}\\) — direct with force, inverse with mass.",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 5,
    "fragments": []
  },
  {
    "slide": 6,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Multiple Choice Question\nCorrect!\nGreat job. You applied the second law correctly.\nIncorrect\nCheck the formula \\(a = \\frac{F}{m}\\) and try again.\nconst correctOption = 1; // 0-based index for 3 m/s²\n    const answerCards = document.querySelectorAll('.answer-card');\n    const submitBtn = document.getElementById('slide-06-k3n9z7-submitBtn');\n    const feedbackCorrect = document.getElementById('slide-06-k3n9z7-feedbackCorrect');\n    const feedbackIncorrect = document.getElementById('slide-06-k3n9z7-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 cart is pushed with 12 N. Using \\(F = m a\\), what is its acceleration?",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "1\n0.3 m/s²",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "2\n3 m/s²",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "3\n48 m/s²",
        "image_description": ""
      },
      {
        "fragment_index": 5,
        "text_description": "4\n16 m/s²",
        "image_description": ""
      },
      {
        "fragment_index": 6,
        "text_description": "Hint:\nRearrange \\(a = \\frac{F}{m}\\).",
        "image_description": ""
      },
      {
        "fragment_index": 7,
        "text_description": "Submit Answer",
        "image_description": ""
      }
    ]
  },
  {
    "slide": 7,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Key Points",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "Stronger push, faster change\nMore applied force gives greater acceleration.",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Heavier mass, slower change\nA larger mass accelerates less under the same force.",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Formula link\nNewton summed it up: \\(F = m \\times a\\).",
        "image_description": ""
      },
      {
        "fragment_index": 4,
        "text_description": "Direct & inverse relations\nAcceleration grows with force and shrinks with mass.",
        "image_description": ""
      }
    ]
  }
]