2021 2021秋医学物理实验（王力海）(山东大学) 最新满分章节测试答案

本答案对应课程为:点我自动跳转查看
本课程起止时间为:2021-09-07到2021-12-31
本篇答案更新状态:已完结

【作业】实验五 超声声速的测定 Measurement of ultrasonic velocity 第三次作业

1、 问题:弹吉他时，手指不断的变换位置按住琴弦，并弹奏不同粗细的琴弦来发出不同音调的音乐。请解释并调研吉他的发声机制，并给出相关公式。When playing the guitar, the fingers constantly change their positions, hold down the strings, and play strings of different thicknesses to produce different tones of music. Please explain and investigate the vocal mechanism of guitar and give the relevant formula.
评分规则: 【 一般来说，决定琴弦振动频率的因素有琴弦的粗细形状，琴弦振动部分的长短，琴弦的张力，还有就是琴弦的材质。知道通过手指变换位置来改变弦的长度，进而改变其振动频率，得30分；知道粗细不同的琴弦振动频率不同，因而发出不同的声音，得30分；知道琴弦张力影响频率的，得20分给出琴弦振动类似频率公式得20分Generally speaking, the factors that determine the vibration frequency of a string are the thickness and shape of the string, the length of the vibrating part of the string, the tension of the string, and the material of the string.If you know that the length of the string can be changed by changing the position of the finger, and then the vibration frequency will be changed, 30 points will be obtained;If you know that the strings with different thickness have different vibration frequencies and therefore emit different sounds, 30 points will be obtained;If you know that the string tension affects the frequency, you will get 20 pointsGive the similar frequency formula of string vibration and get 20 points
】

实验六 非正常眼的模拟与矫正 Simulation and correction of abnormal eyes 实验六 非正常眼的模拟与矫正 Test 6 Simulation and corre

1、 问题:关于眼睛的说法错误的是The wrong thing about eyes is
选项：
A:当我们看近处物体时，睫状体收缩，对光的折射能力变大，近处物体反射的光会聚在视网膜上，从而看清近处的物体。When we look at a near object, the ciliary body contracts, and its ability to refract light becomes larger. The light reflected by the near object converges on the retina, so as to see the near object.
B:当我们看远处物体时，睫状体放松，对光的折射能力变小，远处物体反射的光会聚在视网膜上，从而看清远处的物体。When we look at a distant object, the ciliary body relaxes and its ability to refract light becomes smaller. The light reflected by the distant object converges on the retina, so as to see the distant object clearly.
C:近视眼会使远处物体的成像在视网膜前，需用凸透镜矫正.Myopia can make the imaging of distant objects in front of the retina, which needs convex lens correction.
D:远视眼会使近处物体的成像在视网膜后，需用凸透镜矫正Hyperopia can make the image of near objects behind the retina, which needs to be corrected by convex lens.
答案: 【近视眼会使远处物体的成像在视网膜前，需用凸透镜矫正.Myopia can make the imaging of distant objects in front of the retina, which needs convex lens correction.】

2、 问题:实验中所用不同透镜的说法错误的是What’s wrong about the different lenses used in the experiment
选项：
A:靠近光源的透镜可以为后面的透镜提供平行光A lens close to the light source can provide parallel light to the lens behind it
B:透镜A模拟的是正常眼，透镜B模拟的是远视眼，透镜C模拟的是近视眼Lens a simulates normal eyes, lens B simulates hyperopia, and lens C simulates myopia
C:透镜A模拟的是正常眼，透镜B模拟的是近视眼，透镜C模拟的是远视眼Lens A simulates normal eyes, lens B simulates myopia, and lens C simulates hyperopia
D:透镜E和透镜F模拟的是矫正用的眼镜Lens E and lens F simulate spectacles for corrective use
答案: 【透镜A模拟的是正常眼，透镜B模拟的是远视眼，透镜C模拟的是近视眼Lens a simulates normal eyes, lens B simulates hyperopia, and lens C simulates myopia】

3、 问题:下列说法错误的是？Which of the following statements is wrong?
选项：
A:透镜A、B、C相当于人眼的“角膜”和“晶状体”Lens a, B and C are equivalent to the cornea and crystalline lens of human eyes
B:像屏相当于人眼的“视网膜”The image screen is equivalent to the retina of the human eye
C:透镜E、F相当于矫正视力用的“眼镜”Lenses E and F are equivalent to "glasses" for correcting vision
D:矫正透镜的焦距越大，屈光度也越大The larger the focal length of the corrective lens , the greater the diopter
答案: 【矫正透镜的焦距越大，屈光度也越大The larger the focal length of the corrective lens , the greater the diopter】

4、 问题:关于焦度的说法，以下不正确的是：Which of the following is not true about the power of focus？
选项：
A:常用焦距 f  的倒数表示透镜的折射本领，称为焦度。The reciprocal of the focal length f is often used to represent the refractive power of the lens, which is called the power of focus.
B:当焦距为f =1米时，则其焦度为1 屈光度。When the focal length is f = 1 m, the power is 1 diopter.
C:在配戴眼镜时，焦度又常用度做单位，1屈光度等于100度。When wearing glasses, the focal power is often used as a unit, 1 diopter is equal to 100 degrees.
D:焦度是指聚焦的程度，焦距越大，焦度也越大。The focus refers to the degree of focus. The greater the focal length, the greater the power.
答案: 【焦度是指聚焦的程度，焦距越大，焦度也越大。The focus refers to the degree of focus. The greater the focal length, the greater the power.】

5、 问题:关于眼睛的矫正方法，以下说法不正确的是：As for the correction of eyes, the following incorrect statement is
选项：
A:眼睛折射能力过强，眼睛前后距离太长，则眼睛就成了近视眼。If the refraction ability of the eye is too strong and the distance between the front and back of the eye is too long, the eye becomes myopia.
B:眼睛折射能力过弱，眼睛前后距离太短，则眼睛就成了远视眼。If the refraction ability of the eye is too weak and the distance between the eyes is too short, the eye becomes hyperopia.
C:若眼睛折射系统不同方向的曲率半径不同，则对应的聚焦能力也不同，因此产生象散，这种眼镜叫散光眼。其矫正的方法是佩戴适当的圆柱透镜做成的眼镜。If the curvature radius of the refractive system of the eye is different in different directions, the corresponding focusing ability is also different, so astigmatism is produced. This kind of glasses is called astigmatism eye. The correction method is to wear glasses made of appropriate cylindrical lens.
D:平行光线进入眼睛将成像于视网膜前，则眼睛就成了远视眼。When parallel light enters the eye, it will be imaged in front of the retina, and the eye becomes hyperopia.
答案: 【平行光线进入眼睛将成像于视网膜前，则眼睛就成了远视眼。When parallel light enters the eye, it will be imaged in front of the retina, and the eye becomes hyperopia.】

6、 问题:影响实验结果准确度的主要因素有哪些？What are the main factors that affect the accuracy of experimental results?
选项：
A:光源的亮度变化Brightness change of light source
B:透镜位置和光具座刻线不在一个竖直面上The position of the lens and the reticle of the optical holder are not on a vertical plane
C:肉眼对清晰像的识别程度不同The naked eye has different recognition degree to the clear image
D:读数引起的误差Error caused by reading
答案: 【透镜位置和光具座刻线不在一个竖直面上The position of the lens and the reticle of the optical holder are not on a vertical plane;
肉眼对清晰像的识别程度不同The naked eye has different recognition degree to the clear image;
读数引起的误差Error caused by reading】

7、 问题:测定透镜焦距的方法主要有：The main methods for measuring the focal length of lens are as follows
选项：
A:平行光法 Parallel light method
B:自准直法 Autocollimation method
C:同轴合并法 Coaxial merging method
D:平面镜法 Plane mirror method
答案: 【平行光法 Parallel light method;
自准直法 Autocollimation method;
同轴合并法 Coaxial merging method】

8、 问题:放置透镜时，一定保证透镜夹持稳定后再移开手。When placing the lens, make sure that the lens clamping is stable before moving the hand.
选项：
A:正确
B:错误
答案: 【正确】

9、 问题:多人合作时，可每人读一组数据，然后汇总取平均。When many people cooperate, each person can read a set of data, and then summarize and average.
选项：
A:正确
B:错误
答案: 【错误】

实验二 用拉脱法测定液体表面张力系数 Determination of liquid surface tension coefficient by pull off method 实验二 用拉脱法测定

1、 问题:关于零点读数，以下说法正确的是：For zero readings, what is the correct statement of the following options?
选项：
A:零点读数的位置是固定的The position of the zero reading is fixed
B:在每次测量的过程中，零点读数的位置可以移动During each measurement, the position of the zero reading can be moved
C:零点读数的位置可以根据测量情况调整，其位置可以改变The position of zero point reading can be adjusted according to the measurement situation, and its position can be changed
D:不挂金属框测量弹簧的倔强系数时的零点读数，与挂上金属框测量表面张力时的零点读数是一样的。The zero reading when measuring the spring’s stubborn coefficient without hanging the metal frame is the same as that when hanging the metal frame to measure the surface tension.
答案: 【零点读数的位置可以根据测量情况调整，其位置可以改变The position of zero point reading can be adjusted according to the measurement situation, and its position can be changed】

2、 问题:给定液体的表面上一段分界线的长度时L，其表面张力的大小和方向是？Given the length L of a dividing line on the surface of a liquid, what is the magnitude and direction of the surface tension?
选项：
A:表面张力与L成正比，力与L垂直且沿液面的切线方向The surface tension is proportional to L, and the force is perpendicular to L and along the tangent direction of the liquid surface
B:表面张力与L成正比，力与L垂直且与液面垂直指向液体内部.The surface tension is proportional to L, and the force is perpendicular to L and perpendicular to the liquid surface and points to the interior of the liquid.
C:The surface tension is proportional to L, and the force is perpendicular to L and perpendicular to the liquid surface and points to the interior of the liquid.
D:表面张力与L成正比，力指向液体内部The surface tension is proportional to L, and the force points to the interior of the liquid.
答案: 【表面张力与L成正比，力与L垂直且沿液面的切线方向The surface tension is proportional to L, and the force is perpendicular to L and along the tangent direction of the liquid surface】

3、 问题:一矩形金属线框结有表面张力系数为a的液膜，有一边是可滑动的，其长为L，如果用力F使滑动边匀速且无摩擦地拉开距离x，此时液膜的表面能比原来：A rectangular metal wire frame junction has a liquid film with a surface tension coefficient a, one side of which is sliding and its length is L. if the force F makes the sliding edge move at a constant speed without friction, the surface energy of the liquid film is compared with the original one，
选项：
A:增加了2 a LxAdded 2 a Lx
B:增加了2FxAdded 2Fx
C:增加了FLAdded FL
D:增加了FLxAdded FLx
答案: 【增加了2 a LxAdded 2 a Lx】

4、 问题:焦利氏秤上的弹簧是挂在可以上下移动的有刻度的管子上的，管外面套有外管，外管上有游标，旋转旋钮即可使管上下移动。该游标是十分度的，那么其最小读数值为？The spring on Jolly’s scale is hung on a graduated tube which can be moved up and down. The tube is covered with an outer tube, and there is a vernier on the outer tube. The tube can be moved up and down by turning the knob. The cursor is ten degrees, so its minimum reading value is?
选项：
A:0.1mm
B:0.01mm
C:1.0mm
D:0.001mm
答案: 【0.1mm】

5、 问题:当液面在毛细管中低于毛细管外液面时，液体在毛细管中的接触角为？When the liquid level in the capillary is lower than that outside the capillary, the contact angle of the liquid in the capillary is?
选项：
A:锐角 Acute angle
B: 直角 right angle
C:钝角 Obtuse angle
D:0与π间Between 0 and π
答案: 【钝角 Obtuse angle】

6、 问题:调节焦利氏称时，三线重合是指哪些线：When the Joule scale is adjusted, which lines are overlapped by three lines?
选项：
A:玻璃管上的标线 The marking line on glass tube
B:玻璃管上的标线在镜中的像The image of the mark on the glass tube in the mirror
C:细金属杆上镜子的标线在玻璃管中的像The image of the line of a mirror on a thin metal rod in a glass tube
D:细金属杆上镜子的标线Marking lines for mirrors on thin metal rods
答案: 【玻璃管上的标线 The marking line on glass tube;
玻璃管上的标线在镜中的像The image of the mark on the glass tube in the mirror;
细金属杆上镜子的标线Marking lines for mirrors on thin metal rods】

7、 问题:液体的表面张力系数大小，与哪些因素有关？Which factors are related to the surface tension coefficient of liquid？
选项：
A:温度 Temperature
B:液体本身的性质 Properties of liquid itself
C:所含的杂质 Impurities contained
D:测量仪器的精密度 Precision of measuring instrument
答案: 【温度 Temperature;
液体本身的性质 Properties of liquid itself;
所含的杂质 Impurities contained】

8、 问题:日常生活中的表面吸附现象有：The surface adsorption phenomena in daily life are as follows:
选项：
A:水面上的油膜Oil film on water
B:活性炭过滤水Activated carbon filter water
C:面粉洗葡萄Washing grapes with flour
D:扫地机器人扫地Sweeping robot sweeps the floor
答案: 【水面上的油膜Oil film on water;
活性炭过滤水Activated carbon filter water;
面粉洗葡萄Washing grapes with flour】

9、 问题:测量过程中，铁支架可适当移动以方便读数During the measurement, the iron bracket can be moved properly to facilitate reading
选项：
A:正确
B:错误
答案: 【错误】

10、 问题:金属框下端全没入水中，即使金属框略倾斜也不会影响表面张力的大小。The lower end of the metal frame is completely submerged in the water, even if the metal frame is slightly inclined, The size of surface tension will not be affected.
选项：
A:正确
B:错误
答案: 【错误】

11、 问题:本实验测量弹簧弹性系数时，砝码盘可以挂着金属框进行实验，这时候的零点和不挂金属框时的零点位置不同。In this experiment, when measuring the spring elastic coefficient, the weight plate can be hung with a metal frame, and the zero point position is different when the metal frame is not hung.
选项：
A:正确
B:错误
答案: 【正确】

绪论 Introduction 绪论测验 Introduction test

1、 问题:        的出现，使生命科学进入到分子水平。With the appearance of                  , life science has entered the molecular level.
选项：
A:X射线衍射技术 X-ray diffraction technique
B:望远镜 telescope
C:指南针 compass
D:电子显微镜 electron microscope
E:光学显微镜 optical microscope
答案: 【X射线衍射技术 X-ray diffraction technique】

2、 问题:以下说法错误的是：The following statement is wrong:
选项：
A:真值a是不可测得的，所以通常取算数平均值取代真值.The true value a is not measurable, so the true value is usually replaced by the arithmetic mean.

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