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{"root":{"data":{"text":"物理","font-weight":"bold"},"children":[{"data":{"text":"力学","font-weight":"bold"},"children":[{"data":{"text":"牛顿第一定律","note":"任何物体都要保持匀速直线运动或静止状态，直到外力迫使它改变运动状态为止。","font-weight":"bold"},"children":[]},{"data":{"text":"牛顿第二定律","note":"物体加速度的大小跟作用力成正比，跟物体的质量成反比，且与物体质量的倒数成正比；加速度的方向跟作用力的方向相同。","font-weight":"bold"},"children":[]},{"data":{"text":"牛顿第三定律","note":"相互作用的两个物体之间的作用力和反作用力总是大小相等，方向相反，作用在同一条直线上。","font-weight":"bold"},"children":[]}]},{"data":{"text":"声学","font-weight":"bold"},"children":[{"data":{"text":"声的产生","font-weight":"bold"},"children":[]},{"data":{"text":"声的传播","font-weight":"bold"},"children":[]},{"data":{"text":"声的性质","font-weight":"bold"},"children":[]}]},{"data":{"text":"光学","font-weight":"bold"},"children":[{"data":{"text":"光的产生","font-weight":"bold"},"children":[]},{"data":{"text":"光的传播","font-weight":"bold"},"children":[]},{"data":{"text":"光的性质","font-weight":"bold"},"children":[]}]},{"data":{"text":"热学","font-weight":"bold"},"children":[{"data":{"text":"热力学第一定律","font-weight":"bold"},"children":[]},{"data":{"text":"热力学第二定律","font-weight":"bold"},"children":[]},{"data":{"text":"热力学第三定律","font-weight":"bold"},"children":[]}]},{"data":{"text":"电学","font-weight":"bold"},"children":[{"data":{"text":"欧姆定律","font-weight":"bold"},"children":[]},{"data":{"text":"安培定律","font-weight":"bold"},"children":[]},{"data":{"text":"焦耳定律","font-weight":"bold"},"children":[]}]}]},"template":"filetree","theme":"fish","version":"1.4.43"}
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