山东省济宁市2022-2023学年高二上学期期末考试物理答案

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2022～2023 学年度上学期质量检测
高二物理参考答案 2023.1
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D B B D C A A C AC BC BD BCD
13. (6 分) (1)A (2 分) (2)2.080 (2 分) (3) ① (1 分) 等于(1 分)
14.(8 分)（1）D(2 分) （2）1.45(2 分) 1.33（1.31~1.35 均可）(2 分) （3）偏小(1 分) 电压
表的分流导致电流测不准(1 分)
15. (7 分) 解析：(1)闭合 S后，电动机电压 ····································(1 分)
灯泡的电压等于电动机电压，则流过灯泡的电流为 ·······················(1 分)
流过电动机的电流为 ···························································(1 分)
电动机的输出功率 =200W············································(1 分)
(2)设水的出口速度为 v0，在极短时间 Δt内从喷管喷出的水的质量为 Δm，则
···················································································(1 分)
极短时间内电动机输出功率的瞬时值等于增加水动能功率的平均值，有
···················································································(1 分)
化简得
解得 v0=2m/s····················································································(1 分)
16. (9 分)解析：(1)由图甲可知 =1.0m·····················································(1 分)
解得波长 λ=2.4m···············································································(1 分)
由图乙可知 T=1.6s·············································································(1 分)
所以简谐横波的传播速度的大小为 ················································(1 分)
解得 v=1.5m/s···················································································(1 分)
(2)由图乙可知 t=2.0s 时出现第 1次波峰
在随后的 6.0s 内，由 可得，再出现 3次波峰································(1 分)
共出现了 4次波峰·············································································(1 分)
在0~8.0s 内，质点 P振动了 8.0s-0.8s=7.2s
经历了 次全振动，一次全振动经历的路程为 4个振幅····················(1 分)
总共通过的路程为 s=18A=1.8m····························································(1 分)
17. (14 分)解析：(1)设光线在 O1处发生折射时的入射角为 θ1，折射角为 θ2。
由几何关系可知 ···································································(1 分)
根据折射定律 ······································································(1 分)
可得 θ1＝30°，θ2＝60°········································································(1 分)
可知 ΔOO1E为等腰三角形，得 ·················································(1 分)
光在柱体内的传播速度 ························································(1 分)
在柱体内的传播时间 ··························································(1 分)
从O1传到 E的时间 ···································································(1 分)
故从 D点传到 E点的时间 ·················································(1 分)
(2)光线在 AB 面的入射角恰好为临界角，如图入射点设为 O2，则
······················································································(1 分)
山东省济宁市2022-2023学年高二上学期期末考试物理答案.docx

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