1.选择题- (共9题)
8.阅读理解
One day a pilot and three people were in a plane. When the plane was flying in the sky, there was something wrong with it. The smoke(烟) was everywhere in the plane. The pilot told the people there were only three parachutes(降落伞). They all became worried.
"I must go because I'm the best pilot in the world.” said the pilot, then he jumped out with one parachute.
The next person said, "I must have a parachute. I am a very clever person, and I have to take part in an important meeting." he jumped out with another parachute.
Two men were left, an old businessman and a young mountain climber. By this time the plane was going down faster and faster.
The businessman said, "Young man, I am old but you're still young. You take the last parachute. "
The young mountain climber smiled, "Don't worry, we are both safe, because there are still two parachutes. The clever person jumped out with my backpack."
One day a pilot and three people were in a plane. When the plane was flying in the sky, there was something wrong with it. The smoke(烟) was everywhere in the plane. The pilot told the people there were only three parachutes(降落伞). They all became worried.
"I must go because I'm the best pilot in the world.” said the pilot, then he jumped out with one parachute.
The next person said, "I must have a parachute. I am a very clever person, and I have to take part in an important meeting." he jumped out with another parachute.
Two men were left, an old businessman and a young mountain climber. By this time the plane was going down faster and faster.
The businessman said, "Young man, I am old but you're still young. You take the last parachute. "
The young mountain climber smiled, "Don't worry, we are both safe, because there are still two parachutes. The clever person jumped out with my backpack."
9.阅读理解
One day a pilot and three people were in a plane. When the plane was flying in the sky, there was something wrong with it. The smoke(烟) was everywhere in the plane. The pilot told the people there were only three parachutes(降落伞). They all became worried.
"I must go because I'm the best pilot in the world.” said the pilot, then he jumped out with one parachute.
The next person said, "I must have a parachute. I am a very clever person, and I have to take part in an important meeting." he jumped out with another parachute.
Two men were left, an old businessman and a young mountain climber. By this time the plane was going down faster and faster.
The businessman said, "Young man, I am old but you're still young. You take the last parachute. "
The young mountain climber smiled, "Don't worry, we are both safe, because there are still two parachutes. The clever person jumped out with my backpack."
One day a pilot and three people were in a plane. When the plane was flying in the sky, there was something wrong with it. The smoke(烟) was everywhere in the plane. The pilot told the people there were only three parachutes(降落伞). They all became worried.
"I must go because I'm the best pilot in the world.” said the pilot, then he jumped out with one parachute.
The next person said, "I must have a parachute. I am a very clever person, and I have to take part in an important meeting." he jumped out with another parachute.
Two men were left, an old businessman and a young mountain climber. By this time the plane was going down faster and faster.
The businessman said, "Young man, I am old but you're still young. You take the last parachute. "
The young mountain climber smiled, "Don't worry, we are both safe, because there are still two parachutes. The clever person jumped out with my backpack."
2.单选题- (共4题)
10.
一弹簧振子的位移y随时间t变化的关系式为
，位移y的单位为m，时间t的单位为s。则
A. 弹簧振子的振幅为0.2m
B. 弹簧振子的周期为1.25s
C. 在t=0.2s时，振子的运动速度为零
D. 在任意0.2s时间内，振子的位移均为0.1m
，位移y的单位为m，时间t的单位为s。则A. 弹簧振子的振幅为0.2m
B. 弹簧振子的周期为1.25s
C. 在t=0.2s时，振子的运动速度为零
D. 在任意0.2s时间内，振子的位移均为0.1m
11.
一半径为R的半球面均匀带有正电荷Q，电荷Q在球心O处产生物的场强大小
，方向如图所示．把半球面分为表面积相等的上、下两部分，如图甲所示，上、下两部分电荷在球心O处产生电场的场强大小分别为El、E2；把半球面分为表面积相等的左、右两部分，如图乙所示，左、右两部分电荷在球心O处产生电场的场强大小分别为E3、E4．则（ ）
，方向如图所示．把半球面分为表面积相等的上、下两部分，如图甲所示，上、下两部分电荷在球心O处产生电场的场强大小分别为El、E2；把半球面分为表面积相等的左、右两部分，如图乙所示，左、右两部分电荷在球心O处产生电场的场强大小分别为E3、E4．则（ ）A． | B． | C． | D． |
12.
如图所示，长均为d的两正对平行金属板MN、PQ水平放置，板间距离为2d，板间有正交的匀强电场和匀强磁场，一带电粒子从MP的中点O垂直于电场和磁场方向以v0射入，恰沿直线从NQ的中点A射出；若撤去电场，则粒子从M点射出（粒子重力不计）．以下说法正确的是
| A．该粒子带负电 |
| B．该粒子带正电、负电均可 |
| C．若撤去磁场，则粒子射出时的速度大小为2v0 |
D．若撤去磁场，则粒子射出时的速度大小为 v0 |
13.
关于物理原理在技术上的应用，下列说法中正确的是（）
| A．利用回旋加速器加速粒子时，通过增大半径，可以使粒子的速度超过光速 |
| B．激光全息照相是利用了激光相干性好的特性 |
| C．用双缝干涉测光波的波长时，若减小双缝间的距离，则同种光波的相邻明条纹间距将减小 |
| D．摄影机镜头镀膜增透是利用了光的衍射特性 |
3.多选题- (共3题)
14.
如图甲所示，电阻不计且间距为L=1m的光滑平行金属导轨竖直放置，上端连接阻值为R=1Ω的电阻，虚线OO′下方有垂直于导轨平面向里的匀强磁场．现将质量为m=0.3kg、电阻Rab=1Ω的金属杆ab从OO′上方某处以一定初速释放，下落过程中与导轨保持良好接触且始终水平．在金属杆ab下落0.3m的过程中，其加速度a与下落距离h的关系图象如图乙所示．已知ab进入磁场时的速度v0=3.0m/s，取g=10m/s2．则下列说法正确的是（）
| A．进入磁场后，金属杆ab中电流的方向由b到a |
| B．匀强磁场的磁感应强度为2.0T |
| C．金属杆ab下落0.3m的过程中，通过R的电荷量0.24C |
| D．金属杆ab下落0.3m的过程中，R上产生的热量为0.45J |
15.
如图所示，面积为S、匝数为N、内阻不计的矩形线圈，在磁感应强度为B的匀强磁场中，从图示位置开始计时，绕水平轴oo′以角速度ω匀速转动。矩形线圈通过滑环连接理想变压器。理想变压器原线圈上的滑动触头P上下移动时，可改变副线圈的输出电压；副线圈接有可变电阻R．电表均为理想交流电表。下列判断正确的是（ ）
A．矩形线圈产生的感应电动势的瞬时值表达式为 |
B．矩形线圈产生的感应电动势的有效值为 |
| C．当P位置不动，R增大时，电压表示数也增大 |
| D．当P位置向上移动、R不变时，电流表示数将增大 |
16.
固定的半圆形玻璃砖的横截面如图，O点为圆心，OO’为直径MN的垂线，足够大的光屛PQ紧靠玻璃砖右侧且垂直于MN。由A、B两种单色光组成的一束光沿半径方向射向O点，入射光线与OO’夹角θ较小时，光屛NQ区域出现两个光斑，逐渐增大θ角，当θ=α时，光屛NQ区域A光的光斑消失，继续增大
角，当θ=β时，光屛NQ区域B光的光斑消失，则（ ）
角，当θ=β时，光屛NQ区域B光的光斑消失，则（ ）| A．玻璃砖对A光的折射率比对B光的大 |
| B．A光在玻璃砖中传播速度比B光的大 |
| C．α＜θ＜β时，光屛上只有1个光斑 |
D．β＜θ＜ 时，光屛上只有1个光斑 |
4.解答题- (共3题)
17.
如图所示，在同一平面内边长均为l的正方形区域abcd和cdef中．分别存在平行于ab方向的匀强电场和垂直纸面向里的匀强磁场．质量为m电荷量为q的带电粒子，以速度υ0沿ad方向从a点射入电场，并从dc边的中点O射出，不计重力．
（1）求电场强度的大小；
（2）若粒子垂直于ef边界射出磁场，求它在电、磁场中运动的总时间；
（3）磁场的磁感应强度大小在什么范围内时，粒子才能从de边界射出磁场？
（1）求电场强度的大小；
（2）若粒子垂直于ef边界射出磁场，求它在电、磁场中运动的总时间；
（3）磁场的磁感应强度大小在什么范围内时，粒子才能从de边界射出磁场？
18.
（8分）质谱仪是一种测定带电粒子质量和分析同位素的重要工具，它的构造原理如图所示．离子源S产生的各种不同正离子束(速度可看作为零)，经加速电场(加速电场极板间的距离为d、电势差为U)加速，然后垂直进入磁感应强度为B的有界匀强磁场中做匀速圆周运动，最后到达记录它的照相底片P上．设离子在P上的位置与入口处S1之间的距离为x。
(1)求该离子的荷质比
．
(2)若离子源产生的是带电量为q、质量为m1和m2的同位素离子(m1>m2)，它们分别到达照相底片上的P1、P2位置(图中末画出)，求P1、P2间的距离△x。
(1)求该离子的荷质比
．(2)若离子源产生的是带电量为q、质量为m1和m2的同位素离子(m1>m2)，它们分别到达照相底片上的P1、P2位置(图中末画出)，求P1、P2间的距离△x。
19.
（10分）如图所示，在竖直面内有两平行金属导轨AB、CD．导轨间距为L，电阻不计．一根电阻不计的金属棒ab可在导轨上无摩擦地滑动．棒与导轨垂直，并接触良好．导轨之间有垂直纸面向外的匀强磁场，磁感强度为B．导轨右边与电路连接．电路中的三个定值电阻阻值分别为2R、R和R．在BD间接有一水平放置的电容为C的平行板电容器，板间距离为d．
（1）当ab以速度v0匀速向左运动时，电容器中质量为m的带电微粒恰好静止．试判断微粒的带电性质和电容器的电量q
（2）ab棒由静止开始，以恒定的加速度a向左运动．讨论电容器中带电微粒的加速度如何变化．（设带电微粒始终未与极板接触．）
（1）当ab以速度v0匀速向左运动时，电容器中质量为m的带电微粒恰好静止．试判断微粒的带电性质和电容器的电量q
（2）ab棒由静止开始，以恒定的加速度a向左运动．讨论电容器中带电微粒的加速度如何变化．（设带电微粒始终未与极板接触．）
5.实验题- (共1题)
20.
某实验小组在进行“用单摆测定重力加速度”的实验中，已知单摆在摆动过程中的摆角小于5°；在测量单摆的周期时，从单摆运动到最低点开始计时且记数为1，到第n次经过最低点所用的时间内为t；在测量单摆的摆长时，先用毫米刻度尺测得悬挂后的摆线长（从悬点到摆球的最上端）为L，再用游标卡尺测得摆球的直径为d．
（1）该单摆在摆动过程中的周期为__________________；
（2）用上述物理量的符号写出求重力加速度的一般表达式g= ______________________
（3）实验结束后，某同学发现他测得的重力加速度的值总是偏大，其原因可能是下述原因中的
（1）该单摆在摆动过程中的周期为__________________；
（2）用上述物理量的符号写出求重力加速度的一般表达式g= ______________________
（3）实验结束后，某同学发现他测得的重力加速度的值总是偏大，其原因可能是下述原因中的
| A．单摆的悬点未固定紧，振动中出现松动，使摆线增长了 |
| B．把n次摆动的时间误记为（n+1）次摆动的时间 |
| C．以摆线长作为摆长来计算 |
| D．以摆线长与摆球的直径之和作为摆长来计算 |
试卷分析
-
【1】题量占比
选择题:(9道)
单选题:(4道)
多选题:(3道)
解答题:(3道)
实验题:(1道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：2
5星难题：0
6星难题：6
7星难题：0
8星难题：2
9星难题：1