ST. GEORGE S GIRLS SECONDARY SCHOOL-NAIROBI

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1 ST. GEORGE S GIRLS SECONDARY SCHOOL-NAIROBI FORM 4 AUGUST HOLIDAY HOMEWORK 2018 English 1. Read the passage below and then answer the questions that follow. You may think that expecting food to change your life is too much to ask. But have you considered that eating the right food at the right time will increase energy, help you manage weight and ward off major illness? Researchers have found that eating a meal with plenty of protein leaves you feeling more satisfied for longer when compared to a meal loaded with low quality carbohydrates. Your body takes longer to digest protein, leading to a gradual increase in blood sugar. The high protein breakfast will therefore carry you through the morning and more importantly, through your tea break, many high carbohydrate meals are absorbed quickly and send blood sugar on a roller coaster ride, taking your appetite with it and depleting your energy. Many foods contain antioxidants, but fruits and vegetables may be the richest source. Behaving like chemical warriors, antioxidants neutralize molecules known as free radicals before they damage arteries and body cells. This protects you from heart diseases, high blood pressure, cancer and diabetes. You can now see why antioxidant foods should be consumed in generous portions. Actually, forget pills antioxidants work best when consumed in foods. In fact, nutritionists recommend that we eat five portions of fruit and vegetables a day. It s less daunting than it sounds: a portion equals a piece of fruit, three tablespoons of cooked vegetables or a glass of fresh juice. And do you desire to relive yourself of some baggage? Calcium is the latest weight-loss star to appear on the scene. Scientists stumbled on its magic by accident. From study that measured the 1 blood pressure of obese people. It was discovered that those who took one large tub of yoghurt a day in their diet lost an average of eleven pounds of body fat in one year, even though they did not eat less. A follow-up study found that people on a high calcium diet lost weight and fat than did people on a low calcium diet - and again, both consumed the same number of calories. Researchers believe calcium encourages fat cells to stop getting father instead, the cells burn extra fat without you having to go anywhere near a gymnasium. It probably sounds strange to say that you can eat more in order to lose weight. Obviously, the question you should ask immediately is, Eat more of what? We are talking about foods rich in fibre. They have what is referred to as low- energy density; that translates to few calories relative to weight. This means that you can down a mountain without fear of calories overload. Fibre also aids weight loss because it s filling. Most high - fibre foods take a lot of chewing, triggering your body s fullness sensors. Moreover, you absorb the food more slowly so you feel full longer. Will the wonders of food ever cease? Not if researchers in nutrition keep their pace. Let them keep the good news flowing- such as the fact that we don t have to starve ourselves to lose weight and keep diseases at bay. a) From the information given in the first paragraph, how can you improve your life? (1 mk) b) In not more than 35 words, summarize the effects of eating carbohydrates. (4 mks)

2 c) Explain how free radicals contribute to the occurrence of high blood pressure and cancer. (2 mks) d) In what two forms can antioxidants be consumed. (2 mks) e) In fact, nutritionists recommend that we eat five portions of fruit and vegetable a day. (Begin: Don t nutritionists (1 mk) f) What is the attitude of the author towards calcium as a weight cutting measure? (3 mks) g) According to the passage, how can you use up excess fat? (2 mks) h) Identify an instance of irony in the passage. (2 mks) i) Explain the meaning of the following expressions as used in the passage. (3 mks) a. Daunting b. Baggage c. Down a mountain 2. Read the following excerpt and answer the questions that follow. (25 mks) She felt the weight of injustice that women have felt since time immemorial in her male dominated world. Even a half-wit like her brotherin-law could rob her of her hard earned wealth, and her grandson of his rightful position as the chief, for in truth Otieno should have held the chief s stool only until the infant Owuor come of age, but it was now clear he had no intention of ever giving up the chiefdom and after his death, his numerous sons would make sure that it stayed in the family. Owuor would be outnumbered practically by infinity to one. As it was, his grandmother feared for his life and watched him like a hawk. It was disquieting to have all one s eggs in this one tiny frail basket. After pondering over her predicament at length Akoko decided to make contact with the sirkal and seek their intervention. The first thing she did was to remove her two year old grandson and take him back to her brother, Oloo in Yimbo. His mother had meanwhile married one of the 2 numerous cousins. In any case she was not the sort of woman to fight for her rights, leave alone her son s. All she wanted was a husband and some security, and who could blame her? After all not everybody could be like Akoko. Before she left, she went to see her daughter Nyabera who was in mourning again having lost both her sons to a ferocious outbreak of measles which had raged through her village during the last harvest. She was pregnant again but so downcast and depressed that she stayed in her house, rarely going out and hardly eating, she needed help and her mother decided to spend some time with her before leaving. She found her daughter thin to the point of emaciation with her belly sticking out before her like an appendage. When she saw her mother still unbent and uncowed by suffering, looking like a woman half a age, she just broke down and wept in her arms as if she was a little girl again. Cry my child, for one does not bury a child without burying a part of one s soul with it. It is good to cry for one who can comprehend the ways of Were? It is for us men to wash away our painful confusion with tears and then to carry on, perhaps there might be some meaning in it all that only glimmers like a firefly in a dark night. Who knows but that one day Were will give you a child that lives and grows? Yesterday is not today and today is not tomorrow for each day rises fresh from the hands of Were god of the eye of the sun, bringing with it gladness and sorrow, sun and darkness, the two faces of Were; fro how can we appreciate light unless we understand darkness? Weep my child and do not hold pain within yourself for it will turn into a snake that devours you from the inside. When Nyabera eventually calmed down, she sat her mother down and gave her some food. As she ate, Nyabera talked to her about this and that, her face and eyes looking animated for the first time in months. You know mother, I ve been having the same every night. What dream, my child? It s about Obura, we are both children and he comes with that funny beetle on a string as I start laughing the beetle escapes and lands on my shoulder. I try to brush it off but it turns into a beautiful bird the colour of the sky and the flies off. As we watch in amazement, the same bird comes back leading many others which fly around our head, but as I turn to look for my brother, I

3 found that he is gone and I am alone at which point I wake up. What do you think it all means mother? How long do you say you had this dream? Let me see. I would say soon after Sidande died. I was in the sixth moon of pregnancy then, so it must be about two moons now since it started. Questions 1. Place this excerpt in its immediate context. (4 marks) 2. From this excerpt, how was chieftaincy passed on to an infant heir? (1 marks) 3. It was disquieting to have all one s eggs in this tiny frail basket. What are the eggs being referred to in this case. 3 marks) 4. How does Akoko s character contrast with that of Owuor s mother s? (2 marks) 5. With illustrations, identify a character trait of each of the following characters as evident in this excerpt. (2 marks) 6. State and illustrate two themes portrayed in this excerpt. (4 marks) 7. Identify and illustrate two features of styles in this excerpt and state their effectiveness (6 marks) 8. Explain the meaning of the following words and phrases as used in the passage. (3 marks) a. Disquieting b. Ferocious c. Time immemorial 3. Read the following narrative and answer the questions that follow. Once upon a time, there lived a boy called Nzoko. He liked two things more than anything else: the forest and music. Scarcely did a moment pass before he sang or quietly whistled a little tune to himself. The boy s father kept goats, and when Nzoko returned from school, he always took them out to graze in the forest. Once there, he would begin singing, first repeating all the songs he knew and then trying out a few new ones. The murmuring of the river, the rustle of the wind in the trees, even the hum of the bumble bees, all made little tunes for him. One day, he cut a short piece of wood from a willow tree, whistled it down, pierced holes into it and made a flute. On his flute, the tunes sounded lovelier than ever before. One warm day, Nzoko heard something moving in the bushes around him. On looking up, and to his amazement, he saw a little fairy man. Do you know what I have come for? the fairy asked. No, I m I m ve..ry so..rry but don t. answered the boy. Well, the fairy said, the spirits of the forest have been long listening to your flute and they are convinced only the fairy piper can play as we as you do. So I have come to hear for myself and I will reward you well if you impress me too. Nzoko did not need telling twice. He was quite at ease with the little man now, and be began to play music so sweet that it entranced the fairy, making him stay on until the moon rose over the distant hills. Before leaving, he asked Nzoko what reward he desired most. The fairy fiddle, please. For I have heard it said that it is the finest in the whole wide world, the boy replied expectantly. The fairly fiddle! exclaimed the fairy, greatly astonished. That is the most precious gift, and anyone who fulfills these three conditions will obtain it. Now listen carefully, Nzoko: your playing must be so enchanting that it will charm the birds into stopping their own music to listen; your music must make animals stop their fighting and finally, your tunes must heal the sick. Take this ring, and when you have worked hard enough, and only then, turn to it and it will bring you the fairy fiddle, the fairy said and then vanished. In the following days, Nzoko played every song over and over, trying to make each better and 3

4 better. He tried to silence the music of a blackbird with his own but to no avail. However, he didn t give up and one sunny afternoon, there suddenly gathered a wide circle of birds: robins and wrens, finches and blackbirds, cuckoos and wagtails. And they listened. Could this be the first condition fulfilled? Several days later, he heard a great din coming from a farm. On checking, he saw a fox running after a cackling hens, wanting to them into a meal. Without realizing it, Nzoko started playing his flute loudly and as if by magic, the fox melted away. Thus, the second condition was fulfilled. On yet another day, as he drove the goats home, he heard a child cry weakly in agony. He peeped through the window of the cottage and saw a little girl lying in bed, pale and worn. The mother must have gone to look for herbs. Nzoko s eyes welled with tears, and as if driven by some force beyond him, he started playing a merry tune on his flute, then a merrier one still. And slowly, very slowly, colour began to creep back into the girls face and after a little while she asked for food. The third and last condition fulfilled? Nzoko leapt for joy and turned the ring, and there, right in front of him, was the most wonderful fiddle there ever was. a) From the second paragraph, what inspired Nzoko to create new tunes? (2 mks) b) Why do you think the boy s reply to the fairy is broken with dots? (3 mks) c) How do we know that Nzoko was very eager to play the flute for the fairy man? (2 mks) d) Give two reasons why you think the fairy set conditions for Nzoko before he could get the fairy fiddle. (4 mks) e) Why do you think the narrator mentions six different kinds of birds? (2 mks) f) With an illustration to each, describe any two character traits of Nzoko. (4 mks) g) What can we learn about the values of this community? (3 mks) 4. Grammar a) Use the correct form of the word given in brackets to fill in the gap in each sentence. (3 mks) a) The of the right of expression is a violation of human rights. (denial) b) Saving the child from the burning house was a act. (hero) c) They were asked to the alarm. (active) b) Complete each of the following sentences in the most suitable way. a) If you really loved Kenya, you (3 mks) buy Kenyan products. b) Hardly has she left the house the guests arrived. c) I would have cleaned the classroom if water available. c) Briefly explain the difference in meaning of a) the following sentences. (4 mks) i. They collected all the money they needed. ii. They needed all the money they collected. b) i. Four of those students were admitted to the university. ii. Those four students were admitted to the university. d) Rewrite the following sentences according to the instructions given after each. (5 mks) 4

5 a) Barrack Obama the 44 th president of America is a great orator. (Punctuate the sentence) b) If we do not ban plastic bags, our environment will be unclean. (Rewrite using unless ) c) The patient could not stand without support. She also could not sit straight. (rewrite as one sentence using: neither... nor ) d) Esther said Patricia had stolen her dress. (Begin: Esther accused...) e) There are very few students in the classroom. (use:... any...) a) Lazima. KISWAHILI Insha Umepatakaziyautangazajikatikakampunim ojanchini. Umealikwakwamahojiano. Andikamahojianokatiyakonamkurugenziw akampunihiyo (al.20) b) Andikakisakitakachodhihitishamaanayame thalisikio la kufahalisikiidawa (al.20) c) Jadilimikakatiinayotumiwanaserikalikupa mbananatishio la usalamanchini (al.20) d) Andikakisakitakachomaliziakwamanenoha ya.nilitamaniardhiipasukeinimezem zimamzima. (al.20) MATUMIZI YA LUGHA (ALAMA 40) a) Katika neno shwari, tambua: (al. 2) i. Sauti mwambatano ii. Ala zozote mbili zinazohusishwa na sauti uliyotaja b) i) Eleza maana ya silabi. (al. 1) ii) Kwa kutoa mifano tofautisha aina zozote mbili za silabi. (al. 2) c) Ainisha viambishi katika neno lifuatalo: (al. 2) Viliwavyo. d) i) Eleza maana ya shadda. (al. 1) ii) Tia shadda katika neno hili ili kutoa maana mbili tofauti. (al. 2) mbuni e) Tambua viakifishi vyenye matumizi yafuatayo. (al. 2) i. Hutumiwa kutenga msemaji na maneno au kauli yake. f) Hutoa maelekezo na maagizo katika mazungumzo na mchezo wa kuigiza. g) Tofautisha maana za sentensi zifuatazo. (al. 2) i. Chakula chote kitaliwa. ii. Chakula chochote kitaliwa. h) Yakinisha katika udogo umoja. (al. 2) Nyuzi zisingekatika zisingepotea. i) Andika kinyume katika wakati ujao. (al. 2) Wasichana wawili walipita mtihani vizuri. j) Ainisha virai katika sentensi hii. (al. 3) Mkulima yule mrefu amepanda mboga za kienyeji. k) Changanua sentensi ifuatayo kwa njia ya matawi. (al. 4) Kitabu ambacho kiliraruka jana ni cha mwanafunzi. l) Andika katika usemi wa taarifa. (al. 3) Nitakupasha habari nikimwona akipita na kigari hicho chake. Jasusi alisema. m) Andika upya kwa kufuata maagizo. (al. 2) Mgeni aliyepikiwa wali na mwenyeji alifurahi. (Anza kwa yambwa tendwa.) n) Bainisha matumizi ya viambishi ndi na ji katika sentensi ifuatayo. (al. 2) 5

6 Sisi ndisi tulituzwa kwa kuwa wachezaji bora. o) Tunga sentensi moja kutofautisha maana za vitate vifuatavyo. (al. 2) Shaka/saka p) Tumia maneno uliyopewa kutunga sentensi ukifuata maagizo katika mabano. (al. 2) i. Uchumi (kielezi) ii. Bora (kitenzi) q) Tunga sentensi ukitumia kitenza ja katika kauli ya kutendewa. (al. 2) r) Taja kisawe cha nahau ifuatayo- enda kombo. (al. 2) 1. Lazima ISIMUJAMII (ALAMA 10) a) Eleza maana ya sajili. (al. 2) b) Fafanua sifa zozote nane za sajili ya michezo. (al. 8) SEHEMU YA A: RIWAYA K. Walibora: Kidagaa Kimemwozea Marahaba. Nitakuja. Wajua niko busy sana. Nina kazi nyingi sana, nitakuja karibuni. e) Eleza muktadha wa maneno haya. (Alama 4) f) Bainisha mbinu zozote mbili za lugha zilizotumika katika dondoo hili(alama 2) g) Eleza umuhimu nne wa msemewa wa maneno haya katika riwaya(alama 4) h) Uzembe ni jambo la kawaida miongoni mwa wafanyakazi wa umma. Kwa kutolea mifano kumi tetea dai hili kwa mujibu wa riwaya hii. (Alama 10) SEHEMU B: TAMTHILIA P. Kea : 2. Kigogo hachezewi; watafuta maangamizi! (a) Eleza muktadha wa dondoo hili. (Alama 4) (b) Jadili ufaafu wa jina Kigogo kwa mrejelewa. (Alama 16) 6 3. Msichana mrembo kama wewe, ni kitu gani kinakufanya usiolewe? Elimu unayo ya kutosha, hata ng ambo ulikwenda ukarudi. Ukionyesha majivuno kwa vijana, utazeeka ukiwa nyumbani kwenu. Oooh bebi, miaka yaenda mbio sana, nayo sura yako inachujuka. a) Eleza muktadha wa dondoo hili. (Alama 4) b) Eleza masuala muhimu yanayoibuliwa katika wimbo huu. (Alama 6) c) Tathmini umuhimu wa mbinu ya ishara katika kujenga tamthilia ya Kigogo. (Alama 10 SEHEMU C: HADITHI FUPI s) Chokocha na D. Kayanda: T5 4. Hebu sikiza jo! Pana hasara gani nzi kufia kidondani? (a) Eleza muktadha wa dondoo hili. (Alama 4) (b) Taja na utoe mifano ya mbinu nne za lugha zilizotumika katika dondoo. (Alama 8) (c) Onyesha ukweli wa kauli nzi kufia kidondani unavyodhihirishwa na wahusika katika hadithi hii. (Alama 4) (d) Fafanua maudhui ya unafiki kama yanavyojitokeza katika hadithi hii. (Alama 4) 5. Ukirejelea hadithi zifuatazo, dhihirisha kuwa wanafunzi hukumbwa na masaibu mengi. (Alama 20) i. Mapenzi ya Kifaurongo ii. iii. Shogake Dada ana Ndevu Mame Bakari SEHEMU D: USHAIRI 6. Soma shairi lifuatalo kisha ujibu maswali. SHAIRI A SIKUJUA Kama ningefuga ng ombe, mafahali na vindama, Zisingenidhuru pembe, ngeu kuniandama, Samli ni lembelembe, na minofu ya minyama.

7 Kama ningefuga mbuzi, na kondoo kundi zima, Ningewajengea zizi, na maziwa nikakama, Ningewachuna na ngozi, kutengenezea ngoma. Kama ningefuga bata, nao kuku kwa ujima, Chakula siyo matata, ni machicha na mtama, Mayai ningeyapata, na kitoweo kizima. Kumbe ningefuga punda, mashuzi ndio heshima, Ni ukaidi na inda, mateke kurusha nyuma, Nyama limekuwa nunda, mfugaji humuuma. Kiitikio Sikujua wa kufuga, mnyama mwenye faida. SHAIRI B Afrika na Watu Wake Mimi ninaona mgonjwa Bado amelala kitandani. Kama hatutamtoa miiba iliyobaki Mgonjwa hajaweka miguu yake chini Ili kutembea bila ya kujiegemeza. Miiba iliyomo ndani mwetu lazima Pia iondolewe upesi kabla haijaingia Kati ya mfupa na kufa pamoja nasi. Baada ya kuitoa tuvae viatu chuma Halafu tucheze nao mchezo wa siasa na uchumi. Lakini kuitoa miiba hii Tunahitaji macho makali Mikono isiyotetemeka Moyo usio na huruma Na kuona miiba ilipoingilia. MASWALI (a) Onyesha jinsi ujumbe unaopatikana katika ubeti wa nne wa shairi A na shairi B unavyokatisha tamaa. (Alama 4) (b) Eleza maana ya mshororo huu kama unavyojitokeza kwenye ubeti wa pili wa shairi B. Baada ya kuitoa tuvae viatu vya chuma (Alama 2) (c) Linganua sifa za kimuundo ukizingatia ubeti wa pili wa shairi A na shairi B. (Alama 4) (d) Ukizingatia mshororo wa kwanza kwenye ubeti wa pili wa shairi A, onyesha jinsi 7 mshairi alivyotumia kibali chake. (Alama 2) (e) Onyesha sifa moja ambayo inadhihirika kwenye shairi la B na ambayo hutawala tungo za aina hii. (Alama 2) (f) Nafsi neni imedhihirisha toni gani kwenye shairi A? (Alama 1) (g) Taja nafsi mbili nenwa kwenye shairi B. (Alama 2) (h) Andika ubeti wa mwisho wa shairi B kwa lugha nathari. (Alama 3) SEHEMU E: FASIHI SIMULIZI 7. (a) Fanani ni mojawapo wa watendaji katika fasihi simulizi. Taja na ueleze wengine wanne. (Alama 4) (b) Eleza nafasi ya fanani katika fasihi simulizi. (Alama 4) (c) Eleza maandalizi anayostahili kufanya mtafiti kabla ya kutekeleza shughuli hiyo. (Alama 4) (d) Mkusanyaji wa data za fasihi simulizi anaweza kukumbwa na matatizo akitekeleza utafiti wake nyanjani. Eleza yoyote manane. (Alama 8 MATHEMATICS 1. Use tables of reciprocal only to evaluate hence evaluate : (3mks) 2. Two boys and a girl shared some money. The elder got 4 9 of it, the younger boy got 2 5 of the remainder and the girl got the rest. Find the percentage share of the younger boy to the girls share. (3mks) 3. Annette has some money in two denominations only. Fifty shillings notes and twenty shilling coins. She has three times as many fifty shilling notes as twenty shilling coins. If altogether she has sh. 3,400, find the number of fifty shilling notes and 20 shilling coin. (3mks)

8 4. The figure below shows a rhombus PQRS with PQ= 9cm and SPQ=60 0. SXQ is a circular arc, centre P. S R P Q b) Hence solve the simultaneous equation using the matrix method 4x + 3y =6 3x + 5y In the figure below O is the centre of the circle and <OAB=20 0. Find; a) <AOB (1mk) b) <ACB Calculate the area of the shaded region correct to two decimal places (Take Pie= 22 7) (4mks) 5. Solve the equation 2x 2 + 3x=5 by completing the square.(3mks) 6. Simplify the expression 3x2 4xy 2 +y 9x 2 y 2 (3mks) 7. Solve the equation 8x 2 + 2x 3 =0 hence solve the equation 8Cos 2 y + 2Cosy 3= 0 For the range 0 0 < y <180 0 (4mks) 8. Show that the points P(3,4), Q(4,3) and R(1,6) are collinear. (3mks) 9. Solve the inequalities x 2x + 7 ⅓x +14 hence represent the solution on a number line. (3mks) 10. The mean of five numbers is 20. The mean of the first three numbers is 16. The fifth number is greater than the fourth by 8. Find the fifth number. (3mks) 11. The volume of two similar solid spheres are 4752cm 3 and 1408cm 3. If the surface area of the small sphere is 352cm 2, find the surface area of the larger sphere (3mks) 12. Solve for x in the equation ½log log2(x - x 3) =1 (3mks) 13. A farmer has a piece of land measuring 840m by 396m. He divides it into square plots of equal size. Find the maximum area of one plot. (3mks) 14. a) find the inverse of the matrix (1mk) Each interior angle of a regular polygon is larger than the exterior angle. How many sides has the polygon? (3mks) SECTION II (50MKS) Choose any fie questions 17. Three business partners, Bela Joan and Trinity contributed Kshs 112,000, Ksh, 128,000 and ksh, 210,000 respectively to start a business. They agreed to share their profit as follows: 30% to be shared equally 30% to be shared in the ratio of their contributions 40% to be retained for running the business. If at the end of the year, the business realized a profit of ksh 1.35 Million. Calculate: a) The amount of money retained for the running of the business at the end of the year. (1mk) b) The difference between the amounts received by Trinity and Bela (6mks) c) Express Joan s share as a percentage of the total amount of money shared between the three partners (3mks) 8

9 18. Complete the table below for the function y=x 3 + 6x 2 + 8x for -5 x 1 (3mks) X X X X Y a) Draw the graph of the function y=x 3 + 6x 2 + 8x for -5 x 1 (3mks) (use a scale of 1cm to represent 1 unit on the x-axis. 1cm to represent 5 units on the y-axis) b) Hence use your graph to estimate the roots of the equation X 3 + 5x 2 + 4x= -x 2 3x -1 (4mks) 19. Three islands P,Q,R and S are on an ocean such that island Q is 400Km on a bearing of from island P. island R is 520Km and a bearing of from island Q. A port S is sighted 750Km due South of island Q. a) Taking a scale of 1cm to represent 100Km, give a scale drawing showing the relative positions of P,Q,R and S. (4mks) Use the scale drawing to: b) Find the bearing of: i. Island R from island (1mk) ii. Port S from island (1mk) c) Find the distance between island P and R d) A warship T is such that it is equidistant from the islands P,S and R. by construction locate the position of T. (2mks 20. In the figure below, E is the midpoint of AB, OD:DB=@:3 and f is the point of intersection of OE and AD. Given OA= a and OB= B a) Express in terms of a and b i. AD (1mk) ii. OE b) Given that AF= sad and OF= toe find the values of s and t (5mks) c) Show that E,F and O are collinear 21. A bag contains 5 red, 4 white and 3 blue beads. Two beads are selected at random one after another. a) Draw a tree diagram and show the probability space. b) From the tree diagram, find the probability that; i. The last bead selected is red (3mks) ii. The beads selected were of the same colour iii. At least one of the selected beads is blue. (3mks) 22. The table below shows how income tax was charged on income earned in a certain year. Taxable income per Rate shilling per K year(kenyan pounds Mr. Gideon is an employee of a certain company and earns a salary of ksh.15, 200 per month. He is housed by the company and pas a nominal rent of Ksh per month. He is married and is entitled to a family relief of ksh. 450 per month

10 i. Calculate his taxable income in K p.a ii. Calculate his gross tax per month (4mks) iii. Calculate his net tax per iv. Calculate his net salary per 23. The table below shows the distribution of mathematics marks of form 4 candidates in Mavoko Secondary school. 2) State two conditions necessary for the occurrence of an annular eclipse. (2mks 3) The figure below shows two parallel rays incident on a concave mirror. F is the focal point of the mirror F 4 7 Marks Use the above date to calculate: Mean using assumed mean of 65 (3mks) a) Median (3mks) b) Standard deviation (4mks) 24. Coast bus left Nairobi at 8.00am and travelled towards Mombasa at an average speed of 80Km/hr. At 8.30am, Lamu bus left Mombasa towards Nairobi at an average speed of 120 km per hour. Given that the distance between Nairobi and Mombasa is 400Km.: determine: i. The time Lamu bus arrived in Nairobi. ii. The time the two buses met. (4mks) iii. The distance from Nairobi to the point where the two buses met. iv. How far coast bus is from Mombasa when Lamu bus arrives in Nairobi (3mks) Sketch on the same diagram the path of the rays after striking the mirror. 4) State the class of waves to which sound belongs (1mk) 5) Calculate the value of the critical angle C shown in the figure below 6) In the diagram below, two electroscopes A and B carry same type of charges as shown. The two are then connected with a copper wire as shown PHYSICS SECTION A (25 MARKS) 1) Two plane mirrors are inclined at an angle of 120 o to each other such that their reflecting surfaces face each other. An object pins stands midway between the mirrors. Draw a ray diagram to show all the images (3mks) 10 State and explain the observations.

11 7) The figure below shows a real image I formed by a convex lens 12) Sketch the current voltage characteristic of a junction diode with a forward bias (1mk) 13) The graph below represents valves of and corresponding valves of wavelength for waves transmitted in a certain medium On the same grid, construct a ray diagram to locate the position of the object 8) State a property of electromagnetic wave on which the operation of a radar system is based (1mk) 9) The figure below shows an attempt to supply each of the three lamps L1,L2 and L3 with a switch From the graph, determine the speed of the waves (3mks) (i) Explain why this is a poor connection (1mk) (ii) Redraw an adjacent diagram to show the best positioning for the switches (1mk) 14) State one causes of power loss in long distance transmission wires and how these loses can be minimized (1mk) SECTION B (55 MKS) 15) (a) Study the circuit shown below. 10) State one use of x-ray in medicine and one use in industry 11) Draw the magnetic field lines due to the configuration shows below (1mk) State and explain what happens to the identical lamps X and Y in the circuit shown when i. Switch S2 only is closed. ii. Switches S1 and S2 are closed. 11

12 (b) Graph A shows how potential difference across a battery varies with the current supplied. Graph B shows how the current in a filament lamp varies with potential difference across it x.. y.. (ii) The figure below shows the features of diffusion cloud chamber used for detecting radiations from radioactive sources (i) I. Use graph A to determine e.m.f of the battery II. III. (1mk The internal resistance of the battery given V=-ir+E (3mks) Calculate the resistance of the filament lamp when current through it is 1.5V 16) (a) (i) The following nuclear reaction is part of a radioactive series I. State the property of alcohol that makes it suitable for use in the chamber (1mk) II. What is the purpose of the solid CO2?(1mk III. Explain how the radiation from the radioactive source is detected in the chamber. (2mks IV. State one advantage of the cold chamber over a charged gold leaf electroscope when used as detectors of radiation (1mk) (b) The graph below shows how the activity of a sample of the radioisotope technetium which is used extensively in medicine, varies with time I. Use the graph to determine the half-life. T ½ of technetium (1mk) I. Name the radiation represented by r and (1mk) r s II. Determine the number represented by x and y II. Hence calculate the decay constant for technetium given that T1 where is the 2 decay constant. (1mk) III. Determine the number of technetium atoms remaining in the sample after 24 hours. (1mk) 12

13 17) The figure below shows the features of an X-ray tube ii. iii. h=6.63x10-34 JS and electronic charge, e=1.6x10-19 C) (3mks) What is the maximum kinetic energy of the emitted electrons Write down the value of the stopping potential (1mk) 18) (a) State Lenz s law of electro-magnetic induction (1mk) (b) In the figure below, the bar magnet is moved out of the coil a) (i) What is the purpose of the oil going in and out of the anode (1mk) (ii) State with reason the property of tungsten that makes it suitable as a target (1mk) b) An X-ray tube operates with a potential difference of 100kv and filament current is 20mA. Calculate ; i. The power transferred to the target of X- ray tube ii. The number of electrons hitting the target per second iii. The maximum energy of X-ray produced (Take charge of an electron=1.6x10-19 C, mass of an electron =9.1x10-31 kg). c) The diagram shows monochromatic radiation falling on a photocell connected to a circuit The incident radiation has a wavelength of 2.15x10-7 m. The metal surface of the photocell has a work function of 2.26 ev i. Calculate the energy in ev of a proton of the incident radiation (Take speed of light C=3.0x108ms -1, planck s constant, 13 i. If the current, I is induced in the coil in the direction shown, what is the polarity of x of the magnet? (1mk ii. Explain briefly the source of electrical energy in the circuit (1mk) (c) A hydro-electric power station produces 500KW at a voltage of 10KV. The voltage is then stepped up to 150KV and the power is transmitted through cables of resistance 200Ω to a step down transformer in a sub-station. Assuming that both transformers are 100% efficient. Calculate; I. The current produced by the generator II. The current that flows through the transmission cables III. The voltage drop across the transmission cables IV. The power loss during transmission V. The power that reaches the sub-station 19) (a) State two factors that determine the capacitance of a parallel place capacitor

14 (b) A 5 F capacitor is charged to a potential difference of 200V and isolated. It is then connected to a 10 capacitor. Find CHEMISTRY 1. Consider the diagram below. i. The resultant potential difference across the combination (3mks ii. Energy stored before connection (2mks iii. Total energy in the capacitors after connection (c) Give one application of capacitors (1mk) 20) (a) The following graph shows the variation of image distance, v, with magnification for a converging lens Name the regions labeled a, b, c. a. b. c. (3 marks) 2. Some moist iron wool was placed in a test tube and the tube was inverted and set up as shown below. v Using the graph and the equation M 1 f determine: I. The object position when the image position is 45 cm II. The focal length of the lens (2mk III. The power of the lens (2mks (b) The following figure shows an eye defect Name the defect and illustrate on the same diagram how the defect could be corrected. The apparatus was left for one week. The water level rose and iron wool turned red-brown. I. Write the chemical equation to show the rusting of iron. II. Write the expression for an approximate percentage. III. State two similarities between rusting and combustion. (a) (b) 3. Paper chromatography is a method of separating colours or dyes. 14

15 What two properties should the components of a mixture have that would make the separation possible. (2 marks) 4. A student was asked to prepare Lead (II) chloride salt using the following ingredients; Nitric (V) acid, lead (II) oxide and hydrochloric acid. Using ionic equations only explain how the salt can be prepared. (2 marks) 5. The nitrates of the following metals were heated strongly and observation made accordingly. The nitrate of metal P produced the metallic oxide, Nitrogen (IV) oxide and oxygen gas; and that of metal Q produced the metallic nitrite and oxygen gas. The nitrate of R produced metal R, nitrogen (IV) oxide and oxygen gas. Arrange the metals in order of reactivity beginning with the most reactive. (2 marks) 6. A student added barium hydroxide drop wise into a beaker containing dilute sulphuric (VI) acid. 8. Give two reasons why during preparation of salt, it is advisable to heat the solution to concentration allowing it to cool in order to crystallize instead of heating to dryness. (2 marks) 9. The following is a nuclear equation. i. Calculate the value of x y ( ½ mark) ( ½ mark) ii. State two differences between a nuclear reaction and a chemical reaction. (2 marks) 10. (a) Distinguish between a strong acid and a concentrated acid. b) Giving a reason in each case, identity an acid and a base in the equation. A. What is the significance of point B? B. Explain why point B does not touch the x- axis? C. Explain what happens between? (i) A and B (ii) B and C 7. In an experiment it was found that 40.0cm 3 of 0.2M sodium hydroxide solution just neutralized 0.2g of a dibasic acid Q. Calculate the relative molecular mass of acid Q. (2 marks) 15 Acid: Reason: Base: Reason: 11. Study the following information and answer the question that follows. Heat of hydration of x 2+ = kj/mol Heat of hydration y - = -364 kj/mol Lattice energy of XY2 = kj/mol Determine the heat evolved when 31.8g of XY2(s) is dissolved in water to give an infinitely dilute solution. (RAM of Z = 88, Y = 35.5) (2 marks) 12. The apparatus below was set up to show the catalytic oxidation of ammonia.

16 A) Write the equation between water and solid B. B) State and explain two observations made in gas jar Y. (2 marks) 13. (a) You are provided with a nickel rod, copper rod, connecting wires and a U-tube, Potassium nitrate solution, nickel sulphate solution, copper sulphate solution and a voltameter. With a well labeled diagram show how you will use the apparatus and materials provided to construct an electrochemical cell. Oxidation potential of the metals are shown below: (b)(i)give the cell representation of the above cell. (ii)work out the cell e.m.f of the cell above. (1 mark) 14. The sulphur (IV) oxide can be converted to sulphur (VI) oxide as shown in the equation below. The energy level diagram for the above reaction is as shown below. (i) What would be the effect of increase in temperature? (2 marks (ii) On the same energy level diagram above sketch the energy level diagram that would be obtained if the reaction is carried out in presence of vanadium (V) oxide. 15. On complete combustion of a hydrocarbon gas X, 1.32g of carbon (IV) oxide and 0.54g of water. Calculate the empirical formula of X (C = 12.0, H = 1, O = 16.0) (3 marks) 16. Calculate the oxidation number of nitrogen in the following species. NO2 NH In an experiment to determine the relative formula mass of gas P; the time taken for equal volumes of oxygen and gas P under identical conditions of temperature and pressure was measured and the results were shown in the table below. (O = 16.0)(3 marks Gas Oxygen P Time in seconds Using dots and crosses to represent electrons, show bonding in (a) Sulphur (IV) oxide (b) Structure of an ion illustrated by the formula 14 7 N3 19. Calculate the number of chloride ions in a 250cm 3 of 1M solution calcium chloride (Avogadro s number is )(2 marks) 20. A compound Y reacts with bromine to form another compound, whose formula is: 16

17 What is the formula and name of the compound Y? (2 marks) 21. Study the diagram below and answer the questions that follow. (3 marks) a. Write an equation for the reaction between zinc granules and dilute hydrochloric acid. b. What property of hydrogen is demonstrated by the method of collection shown on the diagram? ( ½ mark) c. Hydrogen gas passed through liquid Z. What is the name of liquid Z and what is the purpose of liquid Z? d. Name one industrial use of hydrogen. ( ½ mark) 22. Three liquids were mixed together accidentally and this included lubricating oil, kerosene and water. The table below gives information about the properties of the liquids. Constituen t Boilin g point in 0 C Solubilit y in water Insoluble Solubilit y kerosene Soluble Lubricatin g oil Kerosene Insoluble oil Water 100 Insoluble Suggest a method you would use to separate the three liquids. (2 marks) 23. The diagrams below represent two iron nails with some parts wrapped tightly with zinc strips, respectively. nails are left in the open for several months? Explain. Observation at A. (½ mark) Explanation: Observation at B. Explanation: (½ mark) (½ mark) (½ mark) 24. RCOO Na + and RC6H5SO3 Na +, represent two cleansing agents where R is a long hydrocarbon chain. a) Write the formulae of the salts that would be formed when each of these cleansing agents is added to water containing calcium ions. b) Explain how the solubilities of the calcium ions in (a) above affect the cleansing properties of each of the cleansing agents. (2 marks) 25. The grid below represents part of the periodic table. Study it and answer the questions that follow. The letters are not the actual symbols. Q W Y R S T K U V a. Hydrogen can be placed in group I or group VII. Explain. Z b. Write the formula of the compound formed between element Y and R. c. How does the atomic radii of T and K compare. Explain. What observations would be made at the exposed points A and B if the wrapped 17

18 26. Dilute sulphuric (VI) acid reacts with aqueous sodium hydroxide to form a salt. Give the formula and name of the anion in the salt. Name: Formula: 27. The molecular formula of a hydrocarbon is C6 H14. The hydrocarbon can be converted into two other hydrocarbons as shown by the equation below. Explain using a chemical equation. (1 mark) (b) Determine from the graph above. (i) (ii) Name and draw the possible structure of formula of x. Name: Structure: State and explain the observation that would be made if a few drops of bromine water were added to sample of x. 28. A condensation polymer formed by loss of water molecules has the following structure. (a) (b) State two advantages of using natural polymers over synthetic ones. (2 marks) Draw the structure of the monomers 29. The diagram below is of the apparatus used to measure the volumes of reacting gases. Now, Nitrogen (II) oxide reacts with oxygen to form only one gaseous product. In the above experiment, 5.0cm 3 portions of oxygen were pushed from syringe B into syringe A. After each addition, the tap was closed and after cooling, the total volume of gases remaining was measured. The results are shown below. (a) What is observed in syringe A during the experiment? (i) the total volume of gases when the reaction is complete. ( ½ mark) (ii) the volume of oxygen which reacts with 50cm 3 of nitrogen monoxide BIOLOGY 1. Citrus sinenses is the scientific name of an orange tree.identify the specific name and the generic name. 2. State three main characteristics of organisms in the division Pteridophyta.(3mks) 3. Identify two parts of a cell that are found in plant cells and not in animal cells.(3mks) 4. State any three factors that affect active transport.(3mks). 5. State three adaptations of the proximal convoluted tubule to its fuctions.(3mks) 6. Differentiate between the following terms- (a) Population and community.(b)habitat and niche.(c)biotic and abiotic factors. 7. State one function of medullary rays in woody plants.(1mk) 8. Name three types of carbohydrates and give an example in each case.(3mks) 9. State the aspects/processes that brings about growth in organisms. (3mks). 10. What measure should one take to avoid infection with Hepatitis B virus.(3mks) 11. Explain why testes are located outside the body of a mammalian male.(3mks) 12. State three characteristics of the respiratory surfaces. (3mks). 18

19 13. Outline the role played by each of the following bacteria in the nitrogen cycle. (a) Nitrobacter (b) Nitrosomonas. (c)rhizobium bacteria. (3mks). 14. Explain why the urine of a mammal does not contain amino acids. 15. Differentiate between homozygosity and heterozygosity. 16. Outline three reasons why support is necessary in plants.((3mks) 17. State any three evidences of organic evolution.(3mks) 18. Name two dental diseases. 19. Name three sex-linked characteristics in human beings.(3mks) 20. Name the blood vessels that supply blood to-(i)alimentary canal.(ii)heart muscles.(iii)the legs.(3mks) 21. Differentiate between hydrolysis and glycolysis. 22. Name the vitamins required in each of the following processes.(i)blood clotting.(ii)formation of strong bones and teeth.(iii)night vision.(3mks). 23. Name two types of movable joints found in mammals.(2mk) 24. Differentiate between homologous and analogous structures. 25. State the three types of muscles found in mammals.(3mks) 26. Name the three bones that form the pelvic girdle.(3mks) 27. State the forces that are involved in movement of water up the stem in plants.(3mks) 28. Name three enzymes that are secreted in inactive form.(3mks) 29. State the nuclei found in a pollen tube as it enters the micropyle.(3mks) 30. Discuss the adaptation of the human ear to its functions.(20mks) 31. Describe how the various bones of the vertebral column are adapted to their functions in humans. Computer SECTION A 1. Define the term computer era (1 Mark 2. Describe each of the following types of computers a) Hybrid b) Embedded 3. Discuss how humidity can be controlled in the computer lab (2 marks) 4. (a) Describe the mouse techniques listed below (1 Mark) (i) Drag and drop (ii) Right clicking (1 Mark) b. Define the terms the terms listed below (1 Mark) i. POST (i) BIOS (1 Mark) 5. (a) state two limitations of entering data into a computer system using a touch sensitive input device. (2 marks) 6. With an aid of a diagram describe how a computer executes an instruction (4 marks) (b) State three circumstances under which voice input would be preferred over other method of data capture. (3 marks) 7. As Brik was working in his computer, he realized that the program he was running used more memory than the available memory in his computer. Identify the extra memory used by the program and where it is located. (1 Mark) 8. State the meaning of the term plotter.(2 marks) 19

20 9. State three Factors to consider when choosing a secondary storage device (3 marks) 10. Distinguish between a software suite and integrated software (2 Marks) 11. State how an operating system handles the following in a computer system (a) Errors (b) Interrupt 12. State functions of the following OSI layers Session Network Physical layer 13. During database construction, it is necessary to consider field properties for each table field. With relevant examples, state the functions of the field properties listed below. a. Field size b. Required c. Input Mask 14. a) Differentiate between Bcc and Cc as used in s. (2 marks) b) Explain briefly off-line processing mode. (3 marks) 15. In relation to DTP, state the purpose of frames. SECTION B 16. (a) Briefly explain the following Object Oriented Programming (OOP) concepts. i) Objects (2 marks) ii) Encapsulation (2 marks) b) A computer program is required which inputs 10 numbers, multiplies them together 20 and finally outputs the answer (the product). The following algorithm has been written to do this. count = 0 product = 0 while count <= 10 do input number product = product * number count = count + 1 print product endwhile (i) There are three errors in the algorithm. Locate and describe these errors. (6 marks) error 1: error 2: error 3: (ii) Draw a flowchart for the correct pseudocode (5 marks) 17. a) A supermarket uses a computer system which operates in both batch mode and real time transaction mode. (a) State two task which could use batch processing. (2 marks (b) State two task which must be done in real time mode. (2 marks) b) State three ways in which data loses integrity in an information system (3 marks)

21 c) A school keeps a spreadsheet of examination results in four subjects. Part of the spreadsheet is shown below. a) Which column has been used to sort the data? b) What formula has been entered in cell G2 to calculate Allen s average mark? (1mark) c) The IT results need to be sorted so that the highest mark is at the top. Describe how this sort could be done. (2 marks) d) A formula is entered in cell H5, Pass appeared as output. What formula has been entered? (2 mark) e) State the validation check that should be carried out on data entered in cells C2 to F8 to ensure values over 100 are not input. f) The school has kept the spreadsheets of all the examination results for the last five years. What feature of the spreadsheet software would allow the results to be easily compared? 18. a. In what three ways could an expert system help a doctor to diagnose illnesses? b. A coffee pot is to be designed using a computer-aided design (CAD) program. State Two benefits of using a CAD program to do this. (2 marc) c. Computer technology has now allowed employees to work from home. a) state one advantages to employers of allowing employees to work from home. b) Describe two advances in computer technology which have allowed working from home to become possible. (2 mark d. A school secretary used a word processor program to prepare a document as shown 21 1 m a (

22 below. c) State any three advantages of twisted pair cable (3 Marks) d) Using eight bit two s complement to perform the calculation below leaving your answer in decimal number (4 Marks) e) Convert 2578 to its equivalent Hexadecimal number (2 Marks) 20. (a) Explain how data in a computer system can be secured using: (i) Password (2 marks) (ii) Audit trail (2 marks) (iii)firewall (2 marks) (b) A manager in XYZ Company wishes to replace the current manual system with a computerized one in an oganisations. a. State the line spacing and justification that have been applied to the text in the body of the letter. (2 marks b. State three formatting features that have been used for emphasis in the letter. (3 marks c. The election authority has recently designed a logo. Explain how you would insert the logo into the letter above the text THE ELECTION AUTHORITY. (2 marks) 19. Network software can be divided into Network Operating System (NOS) and Network Protocols a) State any four administrative activities of the Network Operating System (4 Marks) b) Differentiate between repeaters and routers (2 marks) (i) Explain the reasons for conducting the following activities in system implementation stage. a) Staff training (2 marks) b) File conversion (2 marks) (ii) State three factors to be considered in input requirements specifications stage. (3 marks) a) State two circumstances under which the manager may opt to use phased changeover strategy when introducing the system into the organisation. (2 marks) CHRISTIAN RELIGIOUS EDUCATION 1. (a) With reference to Luke 2: 21 40, describe an event when the baby Jesus was dedicated to Go in the temple. (8mks) (b) Give an outline of how John the Baptist prepared the way for the Messiah. (6mks) 22

23 (c) State seven ways by which the church in Kenya assist in molding the character of the youth. (6mks) 2. (a) Describe an episode in which Jesus healed an evil possessed man in Capernaum. (Luke 4: 31-37) (7mks) (b) Give eight reasons why Jesus identified himself with the sinners during his public ministry. (7mks) (c) Identify six causes of human suffering in the society today. (6mks) 3 (a) Outline Jesus teaching on conditions of disciples. (8mks) (b) Narrate the parable of the rich fool ( Luke 12: 13-21) (6mks) (c) State six ways by which Christians may use their resources for the expansion of God s kingdom. (6mks) 4. (a) Explain how St. Paul uses the concept of the vine and the Branches to express unity of believers. (8mks) (b) State six reasons why the use of the gifts of the Holy Spirit brought disunity in the early church at Corinth. (6mks) (c) Identify six symbols of unity that bring Kenyan together as a nation (6mks) 5. (a) Give six reasons why it is necessary for people to work. (6mks) (b) State seven moral duties and responsibilities of employers to their employees. (7mks) (c) Explain negative results of strikes.(7mks) 6 (a) Identify eight reasons why some people commit crime and cause disorder in the society (8mks) (b) Give seven remedies that can be put in place to minimize gender- based discrimination. (7mks) (c) Explain the role played by the church in Kenya to assist the marginalized communities. (5mks) GEOGRAPHY a) What is trade? (2 mks) b) Identify the main types of trade. (3 mks) c) i) Explain six factors that influences trade. (12mks) ii) State six significance of trade in Kenya. (6 mks) d) Identify the problems facing trade in Kenya. (6 mks) e) Describe the role played by the following: i) COMESA ii) SADC iii) ECOWAS iv) European Union (EU) f) State the objectives and the achievements of the trade blocs in question (e) above ART AND DESIGN KCSE ART PROJECT Complete executing the 2D and 3D projects. 2. Ensure your two Folios are completed appropriately. 3. Prepare any props your may require for your display and bring them the first day of term three. BUSINESS STUDIES 1. (a) Nadwa wholesalers started a business on 1 st January 2017 with capital of Kshs.300,000 in the bank. During the 23