江西省濂溪一中2019_2020学年高二物理下学期期中阶段性评价考试试题PDF.pdf

1、 1 6 2 6 2020 90 100 32 34 12 4 48 18 912 4 2 0 1()A B C D 2()()()A B C D 3 x O a b tab0.2 s b a tba0.4 s()A1 Hz B1.25 Hz C2 Hz D2.5 Hz 4()A B C D 5“”L S L S()A B C D 6()A B C D 7L1 L2 S1 A1 S2 A2 A3 A2 A3()AA1 L1 B S1A1 L1 C R L2 D S2 L2 R 8 Q Q u0 T Q Q()A1 2 B 21 C12 D21 9 f0 f()A ff0 f B ff0 f C

2、 f0 线封密学校班级考号姓名 3 6 4 6 D f 10 x t0.25 s P(x1.5 m)()A 2 m/s B L N Ct0.75 s M Dt1.25 s K 2 m 11 i()12 203 11 22()A 50 Hz B P R C P R 8.45 A D P 132 W 5 52 13(8)“”RG R“”J()(1)RG (“”“”)“”J (“”“”)(2)R (“”“”)14(10)AB mA100 gmB500 gx15 cm AB A (1)A (2)A(g 10 m/s2)15(10)x t10 t20.06 s t0 x1.5 m y (1)(2)(3)

3、3T0.06 smg F BC I F mg D S()S F A 6B ACD B 7C S1 L1 L1 A1 A1 IL1IA1 RL1RA1 A S1 RL1RA1 A1 L1 B S2 A2 A3 A2 A3 R L2 C S2 L2 L2 L2 R D 8D u u0 T Q T u T Q T Q Q 21 D 9BD D B 10ABC 4 m 2 s 2 m/s A L N L N B t0.75 s M C t1.25 s K D 11CD 2 s CD 12AD T0.02 s f50 Hz 50 Hz A P UIR R B U1440 V U1n1U2n2 U266

4、V P R I26 A C P P2132 W D 5 52 13(8)(1)(2)(1)RG A Y J (2)R A RG A Y J 14(10)(1)A x1(mAmB)gkx k x1x2.5 cm Axx112.5 cm(2)A F(mAmB)gmAgmAamax amax5g50 m/s2 15(10)(1)x (2)Tt20.06 s(n012)n34 T0.06 s T 0.244n3 s f1T4n30.24 Hz n0 f fmin 30.24 Hz12.5 Hz(3)3T0.06 s4Tn34 T0.06 s n3T0.016 s vT 1.20.016 m/s75 m/s.3T0.06 s4T n3 0.06 s x334 4.5 m vxt 4.50.06 m/s75 m/s 16(12)(1)U n11650 (2)S U1I1U2I2I1 A(3)S R144 S R R 22 I210 A U1I1U2I2I1 A 17(12)(1)I v (2)R1