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IGCSE Physics paper B FINAL

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INTERNATIONAL GENERAL CERTIFICATE OF SECONDARY EDUCATIONSample Examination Paper B

PHYSICSPaper 21 hour 15 minutesCandidates answer on the Question Paper.No Additional Materials are required.

READ THESE INSTRUCTIONS FIRSTWrite your name on all work you hand in.Write in dark blue or black pen.You may use a pencil for any diagrams, graphs or rough working.Do not use staples, paper clips, highlighters, glue or correction fluid.

Answer all questions.At the end of the examination, fasten all your work securely together.The number of marks is given in brackets [ ] at the end of each question or part question.

The questions in this sample examination paper were taken from IGCSE Physics Paper 2 andare reproduced by permission of the University of Cambridge Local Examinations Syndicate:Questions 1, 2, 11, 12 and 13 October/November 2007Questions 3, 4, 5 and 6 May/June 2007Questions 7, 8 and 9 May/June 2005Questions 10 and 14 May/June 2006The University of Cambridge Local Examinations Syndicate bears no responsibility for theexample answers to questions taken from its past question papers which are contained inthis publication.

Candidate name2

0625/02/O/N/07ForExaminer’sUse© UCLES 20071 Fig. 1.1 shows some liquid in a measuring cylinder. The metal can next to it has a cross-sectional area which is four times that of the measuring cylinder.

cm3100908070605040302010

metalcan

measuringcylinder

liquidFig. 1.1 (a) State the volume of the liquid. volume = ........................................ cm3 [1]

(b) The liquid is poured into the metal can. On Fig. 1.1, draw the surface of the liquid in the can. [2] (c) Complete the following sentence. The pressure of the water at the bottom of the can is ……………………………… than the pressure that the water had at the bottom of the measuring cylinder. [1]

[Total: 4]3

0625/02/O/N/07[Turn overForExaminer’sUse© UCLES 20072 A theatre measures 100 m × 80 m × 25 m. The air inside it has a density of 1.3 kg / m3 when it is cool.

(a) Calculate the volume of the air in the theatre.

volume of air = .......................................... m3 [1]

(b) Calculate the mass of the air. State the equation you are using.

mass of air = ................................................ [4] (c) Some time after the doors are opened, the heating in the theatre is switched on. State and explain what happens to the mass of the air in the theatre as it warms up.statement ...................................................................................................................................................................................................................................................................explanation .......................................................................................................................................................................................................................................................... [2] (d) Suggest why the temperature of the air in the balcony of the theatre (nearer the ceiling) is likely to be greater than that lower down in the theatre.

.................................................................................................................................... [1][Total: 8]6

0625/02/M/J/07ForExaminer’sUse© UCLES 20073 A piece of stiff cardboard is stuck to a plank of wood by means of two sticky-tape “hinges”. This is shown in Fig. 3.1.

stiffcardboard

sticky-tape “hinge”plank ofwoodA

BC

Fig. 3.1 (a) The cardboard is lifted as shown, using a force applied either at A or B or C. (i) On Fig. 3.1, draw the force in the position where its value will be as small as possible.[2]

(ii) Explain why the position you have chosen in (a)(i) results in the smallest force. ............................................................................................................................ [1] (b) Initially, the cardboard is flat on the plank of wood. A box of matches is placed on it. The cardboard is then slowly raised at the left hand edge, as shown in Fig. 3.2.

stiffcardboard

sticky-tape “hinge”plank ofwood

Fig. 3.2 State the condition for the box of matches to fall over........................................................................................................................................... .................................................................................................................................... [2]

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九天国际教育GCSE真题June 2017 QP - Paper 1C Edexcel Chemistry IGCSE

九天国际教育GCSE真题June 2017 QP - Paper 1C Edexcel Chemistry IGCSE


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AP 物理 B

AP 物理 B

Chinese Name:..................... English Name:................. Number:........ Score:................一、MULTIPLE CHOICE Directions: For each of the questions below there are five choices . In each case select the best answer and fill in the answer on the answer sheet . You may not use a calculator for this part. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1、A projectile is launched horizontally with a velocity of25 m/s from the top of a 75 m height. How many seconds willthe projectile take to reach the bottom ?（A ）3.91 （B ）4.27 （C ）6.31 （D ）9.75 （E ）15.52、At a lauch angle of 45°，the range of a launched projectileis given by2(A)i v g 2(B)i v g2(C)2i v g 22(D)i v g 2(E)i v g3、In the situation shown above ,what is the tension in string 1 ?（A ）155N （B ）147.6N （C ）138.6N（D ）98N （E ）69.3N4、Two masses ,M and m , are hung over a massless , frictionless pulleyas shown below . If M > m, what is the downward acceleration of massM ?（A ）Mmg （B ）Mmg M m + （C ）Mg m （D ）()M m g M m-+ （E ）g5、A car and driver have a combined mass of 1000 kg . The car passesover the top of a hill that has a radius of curvature equal to 10m . The speed of the car at that instant is 5m/s . What is the forceof the hill on the car as it passes over the top ?（A ）0 N （B ）12300 N , down （C ）12300 N, up（D ）7300 N , down （E ）7300 N , up6、A pendulum consisting of a mass m attached to a light string oflength Question 3 Question 4 Question 5l is displaced from its rest position , making an angle θ with the vertical . It is then released and allowed to swing freely . Which of the followint expressions represents the velocity of the mass when it reaches its lowest positions ?（A（B（C（D（E7、As the time needed to run up a flight of stairs decreases , the amount of work done against gravity（A ）decreases and then increases （B ）increases and then decreases（C ）remains the same （D ）decreases （E ）increases8、Which of the following expressions ,where p represents the linear momentum of the particle , is equivalent to the kinetic energy of amoving particle ?（A ）2/2p m （B ）/2p m （C ）2/p m（D ）2/2m p （E ）2mp9、A ball with a mass of 0.15kg has a velocity of 5 m/s .It strikes a wall perpendicularly and bounces offstraight back with a velocity of 3 m/s . The wall underwent a changer in momentum equal to（A ）7.5kg .m/s （B ）5kg .m/ s （C ）0.15kg .m/s（D ）1.20kg .m/s （E ）0.30kg .m/ s10、 Two equal masses travel towards each other on a frictionless air track at speedsof 60 cm s –1 and 30 cm s –1. They stick together on impact. What is the speed of the masses after impact?（A ）45 cm s –1 （B ）30 cm s –1 （C ）20cm s –1（D ）15 cm s –1 （E ）10 cm s –111、Two similar spheres, each of mass m and travelling with speed v , are moving towards each other. The spheres have a head-onelastic collision. Which statement is correct?（A ）The kinetic energy of system is not conserved .（B ）The total momentum before impact is 2mv .（C ）The total kinetic energy before impact is zero.（D ）The total kinetic energy after impact is mv 2Question 9 Question 11（E ）The spheres stick together on impact.12、An L-shaped rigid lever arm is pivoted atpoint P. Three forces act on the lever arm, asshown in the diagram. What is the magnitude ofthe resultant torque of these forces aboutpoint P?（A ）30N m （B ）35N m （C ）40N m（D ）50 N m （E ）90 N m13、What is the value of g at a height above Earth’s surface that is a equal to the radiusof Earth ?（A ）1.6N/kg （B ）2.45N/kg （C ）6.93N/kg（D ）4.9N/kg （E ）9.8N/kg14、What is the robital velocity of a satellite at a heightof 300km above the surface of Earth ?(The mass of Earthis approximately 6 ×1024 kg, and its radius is 6.4 × 106m .)（A ）3×108 m （B ）6×106 m （C ）7.7×103 m（D ）1.15×106 m （E ）5.42×101 m15、Bernoulli’s equation is based on which law of physics ?（A ）conservation of energy（B ）Newton’s first law of gravity（C ）Newton’s first law of motion（D ）conservation of angular momentum（E ）conservation of linear momentum16、An insulated metal sphere A is charged to a value + Q elementary charges . It is then touched and separated from an identical but neutral insulated metal sphereB .This second sphere is then touched to a third identical and neutral insulated metal sphereC . Finally ,spheres A and C are touched and then separated . Which of the following represents the distribution of charge on eachsphere ,respectively ,after the above process has been completed ?（A ）Q /3 , Q /3, Q /3 （B ）3Q /8 , Q /2 , Q /4 （C ）3Q /8 , Q /4 , 3Q /8（D ）Q /4 , Q /2 , Q /4 （E ）None of these is correct17、A parallel-plate capacitance of C . If the area of the plate is doubled , while the separation between the plates is halved , the new capacitance will be（A ）C/4 F （B ）C F （C ）C/2 F （D ）4C F （E ）2C F18、If 10J of work is required to move 2C of charge in a uniform electric field , the potential difference present is equal toQuestion 12 Question 14（A）10V （B）5V （C）8V（D）12V （E）20V19、How many electrons are moving through a current of 2 A for 2s ?（A）1（B）2.5×1019 （C）4（D）6.28×1018 （E）3.2×10-1920、What is the equivalent capacitance of thecircuit shown below ?（A）15 F （B）10 F （C）5 F（D）8 F （E）2 FQuestion 20（注：专业文档是经验性极强的领域，无法思考和涵盖全面，素材和资料部分来自网络，供参考。

应用现代物理解决科学与工程问题_Physics for Scientists and Engineers with Modern Physics (9th Ed)(gnv

应用现代物理解决科学与工程问题_Physics for Scientists and Engineers with Modern Physics (9th Ed)(gnv

directions, with accelerations ax and ay. Projectile motion can also be handled in this way, with acceleration ax 5 0 in the x direction and a constant acceleration ay 5 2g in the y direction. Therefore, when solving projectile motion problems, use two
4.3 Projectile Motion 85
The y component of
velocity is zero at the y peak of the path.
Байду номын сангаас
The x component of velocity remains
constant because
vy i
vy
SvB
Svi
B
y direction.
In Section 4.2, we stated that two-dimensional motion with constant accelera-
tion can be analyzed as a combination of two independent motions in the x and y
of a projectile that leaves the origin with a velocity Sv i. The velocity vector Sv changes with time in
both magnitude and direction.
2024学年陕西省丹凤中学物理高二下期末综合测试模拟试题(含解析)

2024学年陕西省丹凤中学物理高二下期末综合测试模拟试题(含解析)

2024学年陕西省丹凤中学物理高二下期末综合测试模拟试题注意事项：1．答卷前，考生务必将自己的姓名、准考证号、考场号和座位号填写在试题卷和答题卡上。

用2B铅笔将试卷类型（B）填涂在答题卡相应位置上。

将条形码粘贴在答题卡右上角"条形码粘贴处"。

2．作答选择题时，选出每小题答案后，用2B铅笔把答题卡上对应题目选项的答案信息点涂黑；如需改动，用橡皮擦干净后，再选涂其他答案。

答案不能答在试题卷上。

3．非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新答案；不准使用铅笔和涂改液。

不按以上要求作答无效。

4．考生必须保证答题卡的整洁。

考试结束后，请将本试卷和答题卡一并交回。

一、单项选择题：本题共6小题，每小题4分，共24分。

在每小题给出的四个选项中，只有一项是符合题目要求的。

1、如图所示的电路中，A和B是两个相同的灯泡，线圈L自感系数足够大，电阻可以忽略不计．下列说法正确的是A．闭合开关S时，B灯先亮，A灯后亮B．闭合开关S时，A灯和B灯同时亮C．断开开关S时，A灯和B灯立即熄灭D．断开开关S时，A灯缓慢熄灭，B灯立即熄灭2、下列说法正确的是( )A．β衰变现象说明原子核外存在电子B．只有入射光的波长大于金属的极限波长，光电效应才能产生C．氢原子从基态向较高能量态跃迁时，电子的动能减小D．α粒子散射实验表明核外电子轨道是量子化的3、小型手摇发电机线圈共N匝，每匝可简化为矩形线圈abcd，磁极间的磁场视为匀强磁场，方向垂直于线圈中心轴OO匀速转动，如图所示，矩形线圈ab边和cd边产生的感应电动势的最大值都为e0，不计线圈电阻，OO，线圈绕''则发电机输出电压A．峰值是0e B．峰值为20eC ．有效值为022Ne D ．有效值为02Ne4、如图所示，一束红光从空气穿过平行玻璃砖，下列说法正确的是A ．红光进入玻璃砖前后的波长不会发生变化B ．红光进入玻璃砖前后的速度不会发生变化C ．若紫光与红光以相同入射角入射，则紫光不能穿过玻璃砖D ．若紫光与红光以相同入射角入射，在玻璃砖中紫光的折射角比红光的折射角小5、喷墨打印机的简化模型如图所示，重力可忽略的墨汁微滴，经带电室带负电后，以速度v 垂直匀强电场飞入极板间，最终打在纸上，关于微粒的运动下列说法不正确．．．的是A ．若増大两极板间的电场，微粒仍会到达纸上同一位置B ．运动速度先逐渐増大，再保持不变C ．运动时间与电场强度大小无关D ．运动轨迹与所带电荷量有关6、下列关于动量及其变化说法正确的是（ ） A ．两物体的动量相等，动能也一定相等 B ．物体动能发生变化，动量也一定发生变化 C ．动量变化的方向一定与初末动量的方向都不同 D ．动量变化的大小，不可能等于初末状态动量大小之和．二、多项选择题：本题共4小题，每小题5分，共20分。