衡水大联考·陕西省2025届高三年级9月份联考物理试卷答案试卷答案,炎德英才答案网站目前收集并整理关于衡水大联考·陕西省2025届高三年级9月份联考物理试卷答案试卷答案得系列试题及其答案，更多试题答案请关注我们

衡水大联考·陕西省2025届高三年级9月份联考物理试卷答案试卷答案

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衡水大联考·陕西省2025届高三年级9月份联考物理试卷答案第一部分

12.有一单摆,其摆长l=1.02m,,摆球的质量m=0.10kg,已知单摆做简谐运动,单摆振动30次用的时间t=60.8s,,当地的重力加速度是m/s^2(结果保留三位有效数字);如果将这个摆改为秒摆,摆长应(填写“缩短”增长”),改变量为m。

衡水大联考·陕西省2025届高三年级9月份联考物理试卷答案第二部分（待更新）

(1)用图甲所示装置研究平抛运动竖直分运动的特点。A、B为打弹性金属片后,A球沿水平方向飞出,同时B球自由下落。下列说法正确的是A.A球的运动时间比较长B.两球的质量应相等C.改变击球点离地高度,观察到A、B两球也同时落地D.该实验说明A球在水平方向做匀速直线运动