(1) The document is the physics paper 2 for the 2002 Hong Kong Certificate of Education Examination. It contains 45 multiple choice questions about physics concepts.
(2) Students are instructed to choose only one answer for each question and mark their answers on the answer sheet provided.
(3) A list of physics formulae that may be useful for the exam is provided on the last page.
This physics exam paper contains:
1) 6 multiple choice questions in Section A testing concepts in waves, forces, electricity and magnetism. Students must answer all questions in Section A.
2) 4 long-form essay questions in Section B worth 15 marks each, from which students must answer 4. Question 7 concerns a student's design of an electric hand dryer circuit.
3) The exam tests key concepts taught in a Hong Kong high school physics curriculum and assessments students' understanding of physics principles and ability to apply calculations to practical scenarios.
A empresa de tecnologia anunciou um novo smartphone com câmera de alta resolução, bateria de longa duração e processador mais rápido. O aparelho também possui tela maior e armazenamento expandível. O lançamento do novo modelo está programado para o próximo mês e deve atrair consumidores em busca de um celular potente por um preço acessível.
Curso de improvisação turi collura vol. 1.comprimidoMILTON ALVES
A empresa está enfrentando desafios financeiros devido à queda nas vendas e precisa cortar custos. O diretor financeiro recomenda demitir funcionários para economizar em folha de pagamento ou negociar reduções salariais para evitar demissões.
Mr. Benoy B.Y. worked at EGROUp (Wholesale Dealers in Iron & Steel) from September 28, 2006 to December 3, 2007. EGROUp certifies that during this time, Mr. Benoy was found to be hardworking, sincere, and of good character in discharging his duties. EGROUp wishes Mr. Benoy good luck in seeking better career prospects.
O livro Maria pertence a uma coleção de livros infantis entitulada "Aulas Especiais" podendo ser utilizado na Escola de Evangelização Espírita Infantil bem como no culto do evangelho no lar, trazendo à criança as orientações preciosas do espiritismo.
A empresa anunciou um novo produto que combina hardware e software para fornecer uma solução completa para clientes. O produto oferece recursos avançados de inteligência artificial e aprendizado de máquina para ajudar os usuários a automatizar tarefas complexas. Analistas acreditam que o produto pode ser um sucesso comercial se for fácil de usar e tiver um preço acessível.
This physics exam paper contains:
1) 6 multiple choice questions in Section A testing concepts in waves, forces, electricity and magnetism. Students must answer all questions in Section A.
2) 4 long-form essay questions in Section B worth 15 marks each, from which students must answer 4. Question 7 concerns a student's design of an electric hand dryer circuit.
3) The exam tests key concepts taught in a Hong Kong high school physics curriculum and assessments students' understanding of physics principles and ability to apply calculations to practical scenarios.
A empresa de tecnologia anunciou um novo smartphone com câmera de alta resolução, bateria de longa duração e processador mais rápido. O aparelho também possui tela maior e armazenamento expandível. O lançamento do novo modelo está programado para o próximo mês e deve atrair consumidores em busca de um celular potente por um preço acessível.
Curso de improvisação turi collura vol. 1.comprimidoMILTON ALVES
A empresa está enfrentando desafios financeiros devido à queda nas vendas e precisa cortar custos. O diretor financeiro recomenda demitir funcionários para economizar em folha de pagamento ou negociar reduções salariais para evitar demissões.
Mr. Benoy B.Y. worked at EGROUp (Wholesale Dealers in Iron & Steel) from September 28, 2006 to December 3, 2007. EGROUp certifies that during this time, Mr. Benoy was found to be hardworking, sincere, and of good character in discharging his duties. EGROUp wishes Mr. Benoy good luck in seeking better career prospects.
O livro Maria pertence a uma coleção de livros infantis entitulada "Aulas Especiais" podendo ser utilizado na Escola de Evangelização Espírita Infantil bem como no culto do evangelho no lar, trazendo à criança as orientações preciosas do espiritismo.
A empresa anunciou um novo produto que combina hardware e software para fornecer uma solução completa para clientes. O produto oferece recursos avançados de inteligência artificial e aprendizado de máquina para ajudar os usuários a automatizar tarefas complexas. Analistas acreditam que o produto pode ser um sucesso comercial se for fácil de usar e tiver um preço acessível.
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Michael Rosemann of Queensland University of Technology (QUT) offered a structured approach to rapid process redesign. What is it all about? How does it work? What are the proposed benefits? Here's an executive summary.
The Vishnusahasranama, a tatpurusha compound, is a list of 1,000 names (sahasranama) of Vishnu, one of the main forms of God in Hinduism and the personal supreme God for Vaishnavas (followers of Vishnu). It is also one of the most sacred and commonly chanted stotras in Hinduism. The Vishnusahasranama as found in the Anushasana Parva of theMahabharata is the most popular version of the 1,000 names of Vishnu. Another version exists in the Padma Purana and Matsya Purana. Each name eulogizes one of His countless great attributes.
SlideShare Lição 11, Sendo Cautelosos Nas Opiniões, 2Tr22, Pr Henrique, EBD NA TV, Americana, SP, Revista Lições Bíblicas, CPAD, adultos, estudantes, professores, Imperatriz, MA, Ervália, MG, estudos bíblicos, gospel, DEUS, ESPÍRITO SANTO, JESUS, Slides, 2° Trimestre 2022, Tema, OS Valores Do Reino De Deus, A Relevância do Sermão do Monte para a Igreja de CRISTO, Comentários, Pr. Osiel Gomes, meu telefone, 99-99152-0454, Luiz Henrique de Almeida Silva, Canal YouTube, Henriquelhas
A empresa de tecnologia anunciou um novo sistema operacional para computadores pessoais. O novo sistema operacional terá recursos aprimorados de segurança e privacidade para proteger os usuários. Além disso, o sistema operacional contará com uma interface simplificada e intuitiva para tornar a experiência do usuário mais agradável.
The document discusses Open Source Software (OSS) as a strategic weapon and summarizes Telefonica's Morfeo initiative. Morfeo is Telefonica's OSS community that hosts R&D projects to define standards and create business opportunities around them. Key projects discussed include EzWeb, a mashup platform, and MyMobileWeb, an open source platform for developing mobile websites.
The document discusses the benefits of exercise for mental health. It states that regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help alleviate symptoms of mental illness.
Slideshare Lição 4, CPAD, O Ministério Avivado de JESUS, 1Tr23, Pr Henrique, EBD NA TV, Lições Bíblicas, 1º Trimestre de 2023, adultos, Tema, Aviva a Tua Obra, O chamado das Escrituras ao quebrantamento e ao poder de Deus, estudantes, professores, Ervália, MG, Imperatriz, MA, Americana, SP, estudos bíblicos, gospel, DEUS, ESPÍRITO SANTO, JESUS CRISTO, Comentários, Pr Elinaldo Renovato de Lima, Pr Assembleia de DEUS, em Parnamirim, RN, Coment. Extra Pr. Luiz Henrique, de Almeida Silva, meu telefone, 99-99152-0454, Canal YouTube, Henriquelhas
A empresa anunciou um novo produto para competir no mercado de smartphones. O novo aparelho tem câmera de alta resolução, bateria de longa duração e processador rápido a um preço acessível. A expectativa é que o lançamento ajude a empresa a aumentar sua participação no mercado.
Arte Africana no Brasil (Primeira Série)Rodrigo Retka
A União Europeia está considerando novas regras para veículos autônomos. As regras propostas exigiriam que os fabricantes de veículos autônomos assumam mais responsabilidade por acidentes e garantam que os sistemas de direção sejam projetados para proteger os pedestres e ciclistas. A UE também está discutindo como regular o uso compartilhado de veículos autônomos.
The NESTT Framework — Process redesign in 20 daysRoman Abashin
Michael Rosemann of Queensland University of Technology (QUT) offered a structured approach to rapid process redesign. What is it all about? How does it work? What are the proposed benefits? Here's an executive summary.
The Vishnusahasranama, a tatpurusha compound, is a list of 1,000 names (sahasranama) of Vishnu, one of the main forms of God in Hinduism and the personal supreme God for Vaishnavas (followers of Vishnu). It is also one of the most sacred and commonly chanted stotras in Hinduism. The Vishnusahasranama as found in the Anushasana Parva of theMahabharata is the most popular version of the 1,000 names of Vishnu. Another version exists in the Padma Purana and Matsya Purana. Each name eulogizes one of His countless great attributes.
SlideShare Lição 11, Sendo Cautelosos Nas Opiniões, 2Tr22, Pr Henrique, EBD NA TV, Americana, SP, Revista Lições Bíblicas, CPAD, adultos, estudantes, professores, Imperatriz, MA, Ervália, MG, estudos bíblicos, gospel, DEUS, ESPÍRITO SANTO, JESUS, Slides, 2° Trimestre 2022, Tema, OS Valores Do Reino De Deus, A Relevância do Sermão do Monte para a Igreja de CRISTO, Comentários, Pr. Osiel Gomes, meu telefone, 99-99152-0454, Luiz Henrique de Almeida Silva, Canal YouTube, Henriquelhas
A empresa de tecnologia anunciou um novo sistema operacional para computadores pessoais. O novo sistema operacional terá recursos aprimorados de segurança e privacidade para proteger os usuários. Além disso, o sistema operacional contará com uma interface simplificada e intuitiva para tornar a experiência do usuário mais agradável.
The document discusses Open Source Software (OSS) as a strategic weapon and summarizes Telefonica's Morfeo initiative. Morfeo is Telefonica's OSS community that hosts R&D projects to define standards and create business opportunities around them. Key projects discussed include EzWeb, a mashup platform, and MyMobileWeb, an open source platform for developing mobile websites.
The document discusses the benefits of exercise for mental health. It states that regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help alleviate symptoms of mental illness.
Slideshare Lição 4, CPAD, O Ministério Avivado de JESUS, 1Tr23, Pr Henrique, EBD NA TV, Lições Bíblicas, 1º Trimestre de 2023, adultos, Tema, Aviva a Tua Obra, O chamado das Escrituras ao quebrantamento e ao poder de Deus, estudantes, professores, Ervália, MG, Imperatriz, MA, Americana, SP, estudos bíblicos, gospel, DEUS, ESPÍRITO SANTO, JESUS CRISTO, Comentários, Pr Elinaldo Renovato de Lima, Pr Assembleia de DEUS, em Parnamirim, RN, Coment. Extra Pr. Luiz Henrique, de Almeida Silva, meu telefone, 99-99152-0454, Canal YouTube, Henriquelhas
A empresa anunciou um novo produto para competir no mercado de smartphones. O novo aparelho tem câmera de alta resolução, bateria de longa duração e processador rápido a um preço acessível. A expectativa é que o lançamento ajude a empresa a aumentar sua participação no mercado.
Arte Africana no Brasil (Primeira Série)Rodrigo Retka
A União Europeia está considerando novas regras para veículos autônomos. As regras propostas exigiriam que os fabricantes de veículos autônomos assumam mais responsabilidade por acidentes e garantam que os sistemas de direção sejam projetados para proteger os pedestres e ciclistas. A UE também está discutindo como regular o uso compartilhado de veículos autônomos.
This document contains a mathematics exam for the Caribbean Examinations Council Secondary Education Certificate. The exam has two sections and contains 8 questions. Section I contains 5 compulsory questions testing algebra, geometry, and data analysis skills. Section II contains 2 optional questions on algebra and relations/functions, geometry and trigonometry, or statistics. The exam tests a range of mathematical concepts and requires both calculations and explanations. It aims to comprehensively assess students' general mathematics proficiency.
This document appears to be an exam for a physics course, consisting of multiple choice and short answer questions. In Section A, students must answer all 6 questions, which cover topics like lenses, mirrors, energy, forces, and logic gates. Section B requires students to answer 4 of 7 longer questions, worth 15 marks each. Question topics include measuring reaction time, electromagnetic induction, sound waves, electric circuits, and X-rays. The exam is administered by the Hong Kong Examinations Authority and is written in English.
The document is the physics test paper for JAM 2006. It contains 25 questions, the first 15 being objective questions worth 6 marks each and the remaining 10 being subjective questions worth 21 marks each. The questions cover topics in physics including electromagnetic waves, quantum mechanics, solid state physics, thermodynamics and optics.
Vidyamandir Classes provides practice tests to help students prepare for the AIEEE exam. This document describes a practice test from 2012 that covers physics, chemistry, and mathematics. It provides instructions for taking the test, which contains 90 multiple-choice questions across three sections. The test is designed to help students practice for the AIEEE exam, which evaluates students' preparedness for admission to engineering colleges in India.
This document contains:
1) Instructions for a past IB exam paper that requires answering all questions from Section A and one from Section B within 75 minutes.
2) Three sample questions from Section A about physics concepts including motion in a magnetic field, forces on a rotating ball, and energy transfers.
3) Details for three optional questions in Section B, two involving multiple parts about topics in physics and one in chemistry.
This document contains an unsolved practice test for the IIT JEE physics exam from 2008. It has 24 multiple choice questions across 4 sections testing concepts in physics. The questions cover topics like optics, thermodynamics, nuclear physics, electricity and magnetism. The test examines both conceptual understanding and problem solving abilities in physics.
The document contains 38 physics problems from an unsolved past paper from 2004. Each problem has 4 multiple choice answers. The problems cover topics such as simple pendulums, Young's modulus, electric fields, resistors, projectile motion, circular motion, waves, lenses, thermodynamics, photoelectric effect, semiconductors, and simple harmonic motion.
The document appears to be the blueprint for a 12th grade physics exam. It includes the exam structure and breakdown of questions by topic, including the number and point value of various short answer questions, long answer questions, and total points for each topic. It also includes sample exam questions on various physics topics like electrostatics, current electricity, magnetism, electromagnetic induction, electromagnetic waves, optics, atomic structure, and electronics. The document provides the framework and examples to prepare students for the exam.
This document contains an unsolved physics practice paper from 2007 for the IITJEE entrance exam. It has four sections: 1) Multiple choice questions about physics concepts, 2) Assertion/reason questions, 3) Linked comprehension questions about light refraction and the Doppler effect, and 4) Matching questions about physics situations and characteristics. The document provides context for 9 multiple choice questions, 4 assertion/reason questions, 6 linked comprehension questions, and 3 matching questions/tables to complete.
1. The document summarizes research on the electrostatics of two conducting spheres, including the enhancement of the external electric field between the spheres, capacitance coefficients, and polarizabilities.
2. Formulas are provided for the capacitance coefficients Caa, Cbb, and Cab of two spheres in terms of their radii a and b and separation s.
3. Expressions are derived for the electrostatic force and mutual energy between two charged spheres as functions of their radii, separation, and charges.
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This document contains an unsolved physics paper from 2011 with multiple choice and numerical answer questions. The paper covers topics like electric and magnetic field patterns, kinematics, optics, orbital mechanics, electromagnetism, circuits, and standing waves. It has 4 sections - single answer multiple choice, multiple answer multiple choice, integer answer, and matrix match questions. The document provides context for an IITJEE past paper but does not include the answers to the questions.
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The document is a sample physics test with multiple choice and numerical questions covering various physics topics. It contains 8 objective questions, 4 reasoning questions, and 2 passages with 4 questions each related to the passages. It also includes 2 matrix matching questions and 2 numerical/subjective questions requiring numeric answers. The test examines concepts in mechanics, thermodynamics, electromagnetism, and other core areas of physics.
Iit jam 2016 physics solutions BY TrajectoryeducationDev Singh
1. The electric field at a point (a, b, 0) due to an infinitely long wire with uniform line charge density λ is given by E=λ/(2πε0)(a/r2)ex+(b/r2)ey, where r2=a2+b2.
2. For a 1W point source emitting light uniformly in all directions, the Poynting vector at the point (1, 1, 0) is 1/(8π)ex+(y/e)ey W/cm2.
3. A charged particle starting from the origin with velocity 3/2ex+2ez m/s in a uniform magnetic field B=B
The document is an unsolved physics paper from 2008 for IITJEE (Indian Institute of Technology Joint Entrance Examination). It contains multiple choice and reasoning questions about physics concepts. The questions cover topics like mechanics, electromagnetism, thermodynamics, and waves. There are four sections with different question types including objective, reasoning, comprehension, and matrix-match questions. The document provides figures and diagrams to accompany some of the physics problems.
This document contains a sample MCAT exam with questions from physics, chemistry, and other subjects. Some key details:
- The exam contains 220 multiple choice questions with a maximum score of 1100 marks.
- It is intended for both F.Sc. and non-F.Sc. students and allows 150 minutes to complete.
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- The document provides examples of different question types and formats found on the MCAT exam.
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The document provides an overview of the AP Physics B exam, including the multiple choice and free response sections. It discusses the types of multiple choice questions asked, such as conceptual, computation, graph analysis, and diagram based. It provides examples of each type of question and explains the concepts and equations tested. The summary focuses on the key information about the exam format and question types to help students prepare.
The document contains a 40 question physics exam with multiple choice answers for each question. The questions cover topics including projectile motion, waves, optics, electricity and magnetism, thermodynamics, and modern physics. The exam tests conceptual understanding of fundamental physics principles as well as the ability to set up and solve quantitative problems.
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The document is the chemistry paper for the 2000 Hong Kong Certificate of Education Examination. It contains 35 multiple choice questions related to chemistry concepts. The questions cover topics such as the electronic structures of compounds, properties of elements on the periodic table, chemical reactions, stoichiometry, gas laws, and electrochemistry.
This document contains a 50 question chemistry exam for the Hong Kong Certificate of Education Examination in 2002. The exam covers topics such as atomic structure, chemical reactions, acids and bases, organic compounds, and industrial processes. Students are instructed to choose the best answer for each multiple choice question and to mark their answers on the provided answer sheet.
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Ce Physics 2002 Paper2(E)
1. 2002-CE
PHY HONG KONG EXAMINATIONS AUTHORITY
2 HONG KONG CERTIFICATE OF EDUCATION EXAMINATION 2002
PHYSICS PAPER 2
10.45 am – 11.45 am (1 hour)
Subject Code 170
1. Read carefully the instructions on the Answer Sheet and insert the information
required (including the Subject Code) in the spaces provided.
2. When told to open this book, you should check that all the questions are there.
Look for the words ‘END OF PAPER’ after the last question.
3. All questions carry equal marks.
4. ANSWER ALL QUESTIONS. You should mark all your answers on the
Answer Sheet.
5. You should mark only ONE answer for each question. If you mark more than
one answer, you will receive NO MARKS for that question.
6. No marks will be deducted for wrong answers.
香港考試局 保留版權
Hong Kong Examinations Authority
All Rights Reserved 2002
2002-CE-PHY 2–1
2. There are 45 questions. The last page of this question paper contains a list of
physics formulae which you may find useful.
If necessary, take g = 10 m s–2.
Unless otherwise specified, all the cells are assumed to have
negligible internal resistance.
1. s/m
20
P Q
t/s
0 5
The figure above shows the distance-time graphs of two toy cars P and Q
moving along a linear track. Which of the following statements are correct ?
(1) Car P will reach the 20 m-mark first.
(2) Car P is overtaking car Q at t = 5 s.
(3) The average speed of car P in the first 5 s is smaller than that of
car Q.
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
Resultant force
2.
Time
0
The figure above shows the variation of the resultant force acting on an
object with time. What physical quantity does the area of the shaded region
represent ?
A. acceleration
B. change of momentum
C. work
D. power
2002-CE-PHY 2–2 –1–
保留版權 All Rights Reserved 2002
3. 3. A piece of stone is hung from a balloon, which is rising vertically upward. If
the string connecting the stone and the balloon suddenly breaks, which of
the following velocity-time graphs represents the subsequent motion of the
stone ? [Note : Velocity pointing upward is taken to be positive.]
A. B.
v
v
t
t 0
0
C. D.
v
v
t
0
t
0
4. The following are statements written by three students about Newton’s first
law of motion.
(1) A stationary object will remain in a state of rest unless acted on by
an unbalanced force.
(2) An object undergoing uniform motion will maintain its motion
unless acted on by an unbalanced force.
(3) An unbalanced force is required to maintain the motion of an object
at uniform velocity.
Which of the above statements is/are correct ?
A. (2) only
B. (3) only
C. (1) and (2) only
D. (1) and (3) only
2002-CE-PHY 2–3 –2– Go on to the next page
保留版權 All Rights Reserved 2002
4. 5. Which of the following objects are under the action of an unbalanced force
at the instant shown in the diagrams ?
(1) a football being kicked by a (2) a parachutist falling with
player uniform velocity
(3) a swinging pendulum bob
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
6.
30°
A block of mass 0.5 kg slides down a rough inclined plane with an
acceleration of 3 m s–2. If the plane is inclined at 30° to the horizontal, find
the friction between the block and the plane.
A. 1N
B. 1.5 N
C. 2.8 N
D. 4N
2002-CE-PHY 2–4 – 3–
保留版權 All Rights Reserved 2002
5. 7. John, of mass 80 kg, is standing on a weighing scale in a lift. At a certain
instant, the reading of the weighing scale is 600 N. Which of the following
statements about John at this instant is/are correct ?
(1) The gravitational force acting on John is 600 N.
(2) The force exerted by the weighing scale on John is 200 N.
John is accelerating downward at a rate of 2.5 m s–2.
(3)
A. (2) only
B. (3) only
C. (1) and (2) only
D. (1) and (3) only
8.
A block is projected up a smooth inclined plane. Which of the following
graphs shows the variation of the kinetic energy (K.E.) of the block with its
potential energy (P.E.) during the upward motion ?
A. B.
K.E.
K.E.
0
0
P.E.
P.E.
C. D.
K.E. K.E.
0 0
P.E.
P.E.
2002-CE-PHY 2–5 –4– Go on to the next page
保留版權 All Rights Reserved 2002
6. 9. 60 N
30 N
A block of weight 100 N is placed on a smooth horizontal table. A vertical
force of 60 N and a horizontal force of 30 N are applied to the block as
shown. Find the magnitude of the resultant force acting on the block.
A. 30 N
B. 40 N
C. 50 N
D. 67 N
10.
The figure above shows a flying wheel in an amusement park. The wheel is
of diameter 18 m and carries eight cages. There is only one passenger of
mass 60 kg inside one of the cages. The wheel rotates with uniform speed
and it takes 80 s for the passenger to travel from the bottom to the top of the
wheel. Find the average useful power output of the motor of the wheel.
(60 × 10 × 18) W
A.
60 × 10 × 18
B. ( )W
80
60 × 10 × π × 9
C. ( )W
80
(60 × 10 × π × 9 × 80) W
D.
2002-CE-PHY 2–6 –5–
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7. 11. (1) (2) (3)
F
F
F
F F
F
A block is initially at rest on smooth horizontal ground. Two forces of
equal magnitude F act on the block. In which of the above cases will
the block remain at rest ?
A. (2) only
B. (3) only
C. (1) and (2) only
D. (1) and (3) only
12.
Grace Kitty
0.8 m s–1
Grace and Kitty, of masses 50 kg and 40 kg respectively, stand on light
rollers on a smooth horizontal floor. They are initially at rest with Grace
holding a 2 kg ball. Grace throws the ball to Kitty and moves backward
with a speed 0.8 m s–1 afterwards. After catching the ball, Kitty moves in
the opposite direction as shown above. Which of the following
statements is/are correct ?
The final speed of Kitty is 0.95 m s–1.
(1)
(2) The horizontal momentum of the ball is conserved in this
process.
(3) The total kinetic energy of Kitty and the ball decreases when
Kitty catches the ball.
A. (2) only
B. (3) only
C. (1) and (2) only
D. (1) and (3) only
2002-CE-PHY 2–7 –6– Go on to the next page
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8. 13. Receiver
A microwave receiver is installed in front of a concave reflector. At which
position should the receiver be installed in order to ensure the best reception
of microwaves ?
A. at the centre of curvature of the reflector
B. at the focus of the reflector
C. at the pole of the reflector
D. at the mid-point between the pole and the focus of the
reflector
14.
A ray of light travels in air and strikes a glass block as shown above. Which
of the following diagrams best shows the path of the ray ?
A. B.
C. D.
2002-CE-PHY 2–8 –7–
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9. 15. Which of the following statements about the properties of virtual images
formed in spherical mirrors is incorrect ?
A. Virtual images can be seen by observers.
B. Virtual images always lie behind the mirror.
C. Virtual images are always erect.
D. Virtual images are always magnified.
16.
A man places his spectacles on a book as shown above. What kind of lenses
does he wear and what defect of vision does he have ?
Lenses Defect of vision
A. converging lenses long-sightedness
B. converging lenses short-sightedness
C. diverging lenses long-sightedness
D. diverging lenses short-sightedness
2002-CE-PHY 2–9 –8– Go on to the next page
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10. (For Questions 17 and 18.) A cup is placed in front of a window, outside which is a
distant building. Two photos P1 and P2 as shown below are taken with the same
single-lens camera.
Photo P2
Photo P1
17. Which of the following ray diagrams correctly shows how the image I of
the cup O is formed by the lens of the camera in photo P1 ?
A. B. I
O O
I
C. D.
O O
I
I
18. Which of the following statements about the two photos must be correct ?
A. In P1, the images of the cup and the building are on
different sides of the lens of the camera.
B. In P1, the image of the cup is real while that of the
building is virtual.
C. On taking P2, the distance between the lens and the film of
the camera is shorter than that on taking P1.
D. After taking P1, the photographer has to move forward in
order to take P2.
2002-CE-PHY 2–10 –9–
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11. 19. Temperature
0 Time
A certain amount of crushed solid is heated and the variation of its
temperature with time is shown above. If the same heater is used to heat a
smaller amount of the solid, which of the following graphs (in dash lines)
best shows the variation of the temperature of the solid ?
A. B.
Temperature
Temperature
0
0 Time
Time
C. D.
Temperature
Temperature
0
0 Time
Time
2002-CE-PHY 2–11 – 10 – Go on to the next page
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12. (For Questions 20 and 21.) The specific heat capacity of a metal is measured using
the following method:
Step 2:
Step 1:
Hot metal block
Beaker
Metal block
Cup
Boiling water
Thermometer
Cold water
Heater
A metal block is first immersed in boiling water for some time. The block is then
transferred to a cup of cold water. After a while, the temperature of the water is
measured.
20. The result of the experiment is as follows:
Mass of metal block = 0.8 kg
Mass of water in the cup = 0.3 kg
Initial temperature of water in the cup = 23°C
Final temperature of water in the cup = 38°C
Find the specific heat capacity of the metal (in J kg–1 K–1).
(Given : Specific heat capacity of water = 4200 J kg–1 K–1.)
A. 236
B. 381
C. 622
D. 953
21. The result obtained in Q.20 is found to be higher than the true value of the
specific heat capacity of the metal. Which of the following is a probable
reason ?
A. Some hot water is still adhered to the metal block when
the block is transferred to the cold water.
B. Some energy is lost to the surroundings when the metal
block is transferred to the cold water.
C. Some energy is absorbed by the cup.
D. The temperature of the metal block is still higher than
38°C when the final temperature of the water in the cup is
measured.
2002-CE-PHY 2–12 – 11 –
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13. 22. y
y0
x
0
The above graph shows the result obtained when an experiment is
performed to study the relation between the pressure and temperature of a
fixed mass of gas at constant volume. Which of the following statements
is/are correct ?
(1) The y- and x-axes denote the pressure and temperature of the gas
respectively.
(2) The slope of the graph denotes the volume of the gas.
(3) The intercept y0 denotes the absolute zero temperature.
A. (1) only
B. (2) only
C. (1) and (3) only
D. (2) and (3) only
23. Piston
Gas
Cylinder
A column of gas is trapped inside a cylinder. The piston is now pushed
slowly causing the gas to be compressed at a constant temperature. Which
of the following statements about the gas molecules in the cylinder is/are
correct ?
(1) The average speed of the gas molecules increases.
(2) Each gas molecule exerts a greater impact force on the walls of the
cylinder in each collision.
(3) The gas molecules collide more frequently with the walls of the
cylinder.
A. (1) only
B. (3) only
C. (1) and (2) only
D. (2) and (3) only
2002-CE-PHY 2–13 – 12 – Go on to the next page
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14. 24. In a ripple tank experiment, a series of water waves travels towards a
barrier. Which of the following quantities would remain unchanged after
the waves are reflected by the barrier ?
(1) wavelength
(2) frequency
(3) speed
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
25. A wave source generates waves of frequency 50 Hz. How long does it take
for the waves to travel 100 m ?
A. 0.5 s
B. 2s
C. 5000 s
D. It cannot be determined as insufficient information is
given.
26.
Ripple tank
Spongy lining
Opening
Plane water
waves
Which of the following phenomena would be observed when the water
waves pass through the opening in the above set-up ?
A. reflection
B. refraction
C. diffraction
D. interference
2002-CE-PHY 2–14 – 13 –
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15. 27. Which of the following is/are the reason(s) for not over-using ultra-violet
lamps to produce a suntan effect ?
(1) Ultra-violet radiation is highly penetrating and will damage body
tissue.
(2) Ultra-violet radiation has a strong heating effect and will damage
body tissue.
(3) Over exposure to ultra-violet radiation may cause skin cancer.
A. (2) only
B. (3) only
C. (1) and (2) only
D. (1) and (3) only
28.
The figure above shows the image of a foetus (a baby not yet born) taken by
a scanner. Which of the following waves should be used in the scanning
process ?
A. infra-red
B. microwaves
C. ultrasonics
D. X-rays
2002-CE-PHY 2–15 – 14 – Go on to the next page
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16. 29.
Note Y
Note X
The above figures show the CRO displays of two musical notes X and Y.
The settings of the CRO for displaying the two notes are identical. Which
of the following statements are correct ?
(1) Notes X and Y are of different qualities.
(2) Note X is of a higher pitch than note Y.
(3) Note X is louder than note Y.
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
30.
A1
3Ω
A
A2
6Ω
A
S
In the above circuit, both ammeters A1 and A2 read 1 A when switch S is
open. Find the readings of the two ammeters when S is closed.
A1 A2
A. 0.5 A 1.5 A
B. 0.67 A 1A
C. 1A 1.5 A
D. 1A 3A
2002-CE-PHY 2–16 – 15 –
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17. 31.
A plastic ruler is placed close to a stream of running water coming from an
insulated tap. The stream of water is attracted towards the ruler as shown
above. Which of the following statements are correct ?
(1) The ruler carries an electric charge.
(2) The ruler and the running water are attracting each other with
forces of equal magnitude.
(3) Both positive and negative charges are induced on the running
water.
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
E. (1), (2) and (3)
F.
32.
R
Q
P
P, Q and R are three parallel straight wires carrying equal currents flowing
out of the paper. R is equidistant from P and Q. What is the direction of the
resultant force acting on R by P and Q ?
→
A.
←
B.
C. ↑
D. ↓
2002-CE-PHY 2–17 – 16 – Go on to the next page
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18. 33.
V Y
X
Region P
Region Q
I
0
The figure above shows the voltage-current (V-I ) graphs of two resistors X
and Y. Which of the following deductions is/are correct ?
(1) The resistance of X is higher than that of Y.
(2) If X and Y are connected in series, the V-I graph of the combined
resistor will lie in region P.
(3) If X and Y are connected in parallel, the V-I graph of the combined
resistor will lie in region Q.
A. (2) only
B. (3) only
C. (1) and (2) only
D. (1) and (3) only
34.
6V
L1
L3
L2
Three identical lamps L1, L2 and L3 of ratings ‘6 V, 12 W’ are connected to a
6 V battery as shown above. Which of the following statements is correct ?
A. The potential difference across L2 is 3 V.
B. The current passing through L1 is 2 A.
C. The total power drawn from the battery is 12 W.
D. The total power dissipated in L1 and L2 is smaller than
that in L3.
2002-CE-PHY 2–18 – 17 –
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19. 35.
V V
A A
2Ω 2Ω
R R
Circuit (1) Circuit (2)
V
A
2Ω R
Circuit (3)
Which of the above circuits can be used to find the resistance of the resistor
R, by taking the ammeter and voltmeter readings ?
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
2002-CE-PHY 2–19 – 18 – Go on to the next page
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20. 36.
Live
wire
Neutral
wire
If the live and neutral wires of an electric kettle are mistakenly interchanged
inside the plug as shown above, which of the following will happen ?
A. The kettle will not operate.
B. The fuse of the kettle will blow.
C. The metal case of the kettle will still stand at a high
potential even when the switch of the kettle is off.
D. The heating element of the kettle will still stand at a high
potential even when the switch of the kettle is off.
37. Which of the following shows how a moving-coil galvanometer can be
converted into a voltmeter ?
A. B.
1000 Ω 1Ω
C. D.
1Ω
1000 Ω
2002-CE-PHY 2–20 – 19 –
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21. 38. A B
6V 24 W
C D
20 : 1 step-down
1 : 20 step-up
transformer
transformer
The figure above shows a model power line. An a.c. supply and two ideal
transformers are used to operate a lamp of rating ‘6 V, 24 W’. The total
resistance of the cables AB and CD is 10 Ω. If the lamp operates at its rated
value, find the power loss in the cables.
A. 0.4 W
B. 3.6 W
C. 160 W
D. 1440 W
Starter
39.
switch
M
X
The above diagram shows the circuit of the starter motor of a car. When the
starter switch is closed, a small current flows through device X and a large
current then flows through the motor and starts it. What is device X ?
A. a transformer
B. a reed relay
C. a thermistor
D. a logic gate
2002-CE-PHY 2–21 – 20 – Go on to the next page
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22. 234
40. A radioactive isotope undergoes a series of decay processes to form
90 Th
206
How many α-particles and β-particles have been
a daughter nuclide 82 Pb .
emitted in this decay process ?
No. of α-particles No. of β-particles
A. 6 7
B. 7 6
C. 7 8
D. 8 7
41. Which of the following particles cannot be deflected by a magnetic field ?
α-particles
A.
β-particles
B.
C. neutrons
D. protons
42. Which of the following is/are application(s) of radioactivity ?
(1) to estimate the age of ancient remains
(2) to kill bacteria in food
(3) to transmit signals over long distances
A. (2) only
B. (3) only
C. (1) and (2) only
D. (1) and (3) only
2002-CE-PHY 2–22 – 21 –
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23. Directions : Each question below (questions 43 – 45) consists of two statements.
Decide whether each of the two statements is true or false. If both
are true, then decide whether or not the second statement is a correct
explanation of the first statement. Then select one option A, B, C or
D according to the following table :
1st statement 2nd statement
A. True True The 2nd statement is a correct explanation of
the 1st statement
B. True True The 2nd statement is not a correct explanation
of the 1st statement
C. True False
D. False True
1st statement 2nd statement
43. Air-cushioned sports shoes can Air-cushioned sports shoes can
reduce the impact force acting on increase the time of impact
the feet during jumping and between the feet and the ground
running. during jumping and running.
44. A transformer can be used to step A transformer can be used to step
up the power of an a.c. supply. up the voltage of an a.c. supply.
45. A lightning conductor can protect a As the lightning conductor and the
building from being damaged by thundercloud carry like charges,
lightning during a thunderstorm. there is a strong repulsion between
them.
END OF PAPER
2002-CE-PHY 2–23 – 22 –
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24. Useful Formulae in Physics
(a) Relationships between initial velocity u, uniform acceleration a, final
velocity v and displacement travelled s after time t :
v = u + at
12
s = ut + at
2
v 2 = u2 + 2 as
(b) Potential energy gained by a body of mass m when raised through a height
h is mgh.
(c) Kinetic energy of a body of mass m moving with speed v is
12
mv .
2
Power = force × velocity
(d)
(e) Equivalent resistance of two resistors R1 and R2 :
in series = R1 + R2
(i)
R1 R2
in parallel =
(ii)
R1 + R2
Power = potential difference × current
(f)
2002-CE-PHY 2–24 – 23 –
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25. 2002 Physics Paper 2
Question No. Key Question No. Key
1. A (48) 26. C (87)
2. B (50) 27. B (41)
3. C (42) 28. C (89)
4. C (75) 29. B (63)
5. B (55) 30. C (57)
6. A (57) 31. D (27)
7. B (48) 32. D (42)
8. C (48) 33. B (48)
9. A (17) 34. D (44)
10. B (43) 35. C (46)
11. A (64) 36. D (54)
12. D (21) 37. A (51)
13. B (74) 38. A (28)
14. D (80) 39. B (75)
15. D (61) 40. B (70)
16. D (58) 41. C (84)
17. A (53) 42. C (61)
18. C (53) 43. A (71)
19. C (69) 44. D (60)
20. B (56) 45. C (69)
21. A (19)
22. A (64)
23. B (49)
24. D (74)
25. D (62)
Note: Figures in brackets indicate the percentages of candidates choosing the
correct answers.
2002-CE-PHY 2–25 – 24–
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