| 文件 | 时间 | 大小 | 下载 | |
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01.声波的产生和传播...mp4 | 2024-07-01 17:57:55 | 381.37 MB | |
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02.声音的特征...mp4 | 2024-07-01 17:57:55 | 361.95 MB | |
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03.光的反射...mp4 | 2024-07-01 17:57:55 | 449.31 MB | |
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04.光的折射...mp4 | 2024-07-01 17:57:55 | 348.76 MB | |
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05.透镜成像...mp4 | 2024-07-01 17:57:55 | 263.95 MB | |
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06.机械运动（一）...mp4 | 2024-07-01 17:57:55 | 330.85 MB | |
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07.机械运动（二）...mp4 | 2024-07-01 17:57:55 | 288.26 MB | |
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08.力...mp4 | 2024-07-01 17:57:55 | 359.16 MB | |
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09.二力平衡...mp4 | 2024-07-01 17:57:55 | 342.14 MB | |
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10.杠杆...mp4 | 2024-07-01 17:57:55 | 369.77 MB | |
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11.滑轮...mp4 | 2024-07-01 17:57:55 | 288.14 MB | |
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12.机械功...mp4 | 2024-07-01 17:57:55 | 322.33 MB | |
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13.机械能...mp4 | 2024-07-01 17:57:55 | 258.98 MB | |
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14.温度温标...mp4 | 2024-07-01 17:57:55 | 399.52 MB | |
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15.热量 比热容...mp4 | 2024-07-01 17:57:55 | 314.3 MB | |
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16.内能 物态变化...mp4 | 2024-07-01 17:57:55 | 321.54 MB | |
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17.热机...mp4 | 2024-07-01 17:57:55 | 262.25 MB |