CHANDERBALA MODI ACADEMY Session( ) Holiday Homework Class X Subject : English

Transcription

1 CHANDERBALA MODI ACADEMY Session( ) Holiday Homework Class X Subject : English 1. Read the novel The diary of a Young Girl as prescribed by CBSE. Write character sketch of the following characters in a chart and paste the picture of the character. Attempt any one (100 words each) 1. Otto Frank 2. Edith Frank 3. Anne Frank 4. Margot Frank 5. Mr. Van Daan 2. When you live for a strong purpose, then hard work isn t an option. It is a necessity. Both Nicola and Jacopo were hard working and uncomplaining. You too realized the importance of hard work after reading their story. Write an article in words on the Virtues of Hard Work. Or Self confidence is the key to success. Write a speech for your school assembly in context with the poem- The frog and the nightingale. ********************************

2 Subject : Mathematics 1. The decimal expansion of the rational number will terminate after how many decimal places? Justify it. 2. Find the HCF of 340 and 255 by Euclid division algorithm. 3. Find the HCF of 7161 and 62 by Euclid division algorithm. 4. Find the LCM (96,404), if HCF (96, 404 ) = Show that is a composite number. 6. Find H.C.F. of 65 and 117 and express it in two different way of the form 65 m n. 7. Prove that 7 is an irrational number. 8. Prove that is an irrational number. 9. Use Euclid s division lemma to show that the square of any positive integer is either of the form 3m or 3m + 1 for some integer m. 10. Show that any positive odd integer is of form 4q +1 or 4q + 3,where q is some integer. 11. Show that any positive odd integer is of form 6q +1, 6q +3 or 6q + 5,where q is some integer. 12. Find quadratic polynomial whose zeroes are 24 & If α and β are zeroes of the polynomial p(x) = x 2-10x + 21,then find the value of α +β - 4αβ. 14 Find the zeroes of the polynomial x 2 x 110 and verify the relation between the zeros and the coefficients of the polynomial. 15.Find the zeroes of the polynomial 5x 2 + 8x 4 and verify the relation Between the zeros and the coefficients of the polynomial.

3 16. If one zero of a polynomial 3x 2 8x + 2k +1 is seven times the other, find the value of k. 17. If 1 is a zero of the polynomial p(x) = ax 2 3 (a - 1) x + 1,then find the value of a and also the other zero of the polynomial. 18. If α and β are zeroes of the polynomial 6x 2 7x + 2,find a quadratic polynomial whose zeroes are 1 α and 1 β. 19. Find all the zeros of 3 x x 3-11x 2-5x + 10 if two of its zeros are 5 3 and Find all the zeros of x 4 5 x 3 + 2x x 8 if two of its zeros are 2 and If α and β are zeroes of the polynomial 2x 2 + 5x + k satisfying the relation, α 2 + β 2 + αβ = 21,then find the value of k If α and β are zeroes of the polynomial p(x) = 3x x 111,then find the value of αβ. 23. If α and β are zeroes of the polynomial 3x 2 4x 7,find a quadratic polynomial whose zeroes are 2 α and 2 β. 24.If α and β are zeroes of the polynomial x 2-5x + 4,then find value of (i) 1 α + 1 β 2αβ (ii) α 2 + β 2 + αβ. ************************

4 Subject : Science PHYSICS 1.Define : (i) electric potential difference (ii) electric current (ii) resistance electric charge 2.Name the device: (i) used for measuring electric current (ii) used for measuring potential difference (iii) used for detecting current in the circuit (iv) used for varying resistance in the circuit. 3.Write three properties of electric charge. 4.Write SI units of the following physical quantities : potential difference, electric current, electric charge,resistance and resistivity. 5.State Ohm s law. What are the factors on which the value of resistance depend. 6.Classify the materials on the basis of resistivity. Give one example for each. 7.Calculate the area of cross- section of a wire if its length is 1.0 m, its resistance is 2 ohm and the resistivity of the material is 1.84 x 10-6 Ω m. 8.Two copper wire A and B of length 30 m and 10 m have radii 2 cm and 1 cm respectively. Compare the resistances of the two wires, which will have less resistance? 9.A wire of 10 ohm resistance is stretched to thrice its original length. What will be its (i) new resistivity and (ii) new resistance? 10.A wire of resistance 4 Ω is used to wind a coil of radius 7 cm. The wire has a diameter of 1.4 mm and the specific resistance of its material is 2 x 10-7 Ω m. Find the number of turns in the coil. CHEMISTRY Q1. What happens when iron filings are added to a solution of Copper Sulphate? Q2. What is a chemical equation? What information do we get from a chemical equation? Explain with the help of examples, why is it necessary to balance a chemical equation? Q3. Translate the following statements into chemical equations and balance them: a) Calcium oxide reacts with water to give calcium hydroxide.

5 b) Hydrogen gas combines with nitrogen to give ammonia. c) Sodium metal reacts with water to give sodium hydroxide and hydrogen gas. d) Barium Chloride reacts with Sodium Sulphate to give Barium Sulphate and Sodium Chloride. e) Magnesium Nitride reacts with water to give Magnesium Hydroxide and Ammonia. Q4. What are redox reactions? Give examples.can a displacement reaction be a redox reaction? Give two examples from everyday life situations where redox reactions are taking place. Q5.Differentiate between : - a) Combination and Decomposition reaction. b) Displacement and Double-Displacement reaction. c) Exothermic and Endothermic reaction. Q6.What information does the following equation convey? CaCO3 CaO + CO2 Suggest two improvements by which the equation becomes more informative. Q7. What do the symbols g,l, aq. signify in the following equation. CO2(g) + H2O (l) H2CO3(aq) Q8. Write the observations in an activity which may suggest that a chemical reaction has taken place. Give an example in support of your answer. Q9. Why respiration is considered an exothermic reaction? Q10. Write balancedchemical equations for the following word equations: a) Magnesium Carbonate (s) Magnesium Oxide (s)+ Carbondioxide (g) b) Aluminium (s)+ Hydrochloric acid(aq) Aluminium Chloride (aq) + Hydrogen (g) c) Copper (s) + Silver nitrate (aq) Copper nitrate (aq)+ Silver (s) d) Hydrogen Sulphide (g) + Sulphurdioxide (g) Sulphur (s)+water(l) Biology Q1. Mention the raw materials required for photosynthesis. Write 3 steps of photosynthesis. Q2. Draw a schematic diagram to show opening and closing of stomata.

6 Q3. Write an activity to show that sunlight is needed for photosynthesis. Q4. Explain the process of nutrition in Amoeba with a diagram. Q5. Why do herbivores have longer, small intestine than carnivores? Q6. What is the roe of HCL in our stomach? Q7. Differentiate between Autotrophic and Heterotrophic nutrition. Q8. What will happen if mucus is not secreted in the gastric gland. Q9. Bile juice does not contain any digestive enzymes,yet it is essential for digestion, why? Explain. Q10. What is the role of saliva in digestion of food? *************************

7 Q1. Write a paragraph on resource planning. Q2.Name the five types of land resources. Subject : Social Science Geography Q3What was the views of Gandhiji on resource Conservation? Q4. Major problem faced due to the discriminate use of resources by Man. Discuss. Q5. Distinguish between Renewable and Non renewable resources. Q6.Give the difference between potential resources and stock. Q7. What do you know about the Rio de Janerio Earth Summit, 1992? Q8. Imagine if the oil supply gets exhausted one day, how would this affect our life style? Economics Q1. Explain with the help of examples people have conflicting developmental goals. Q2. Define per capita income. Q3. Describe how World Bank has classified countries based on national income. Q4. Why is average income used as a criterion to measure development of a country? Q5. What could be the developmental goals of farmers of Rajasthan? Q6. Describe the parameters (other than income) which determine the level of development of a country. Q7.What are the limitations of using average income as measure of development? Political Science Q1.Explain any five features of Belgium Model of power sharing. Q2.How does Democracy accommodate different social groups? Q3.Explain two reasons as why power sharing is desirable? Q4.Indian Union enjoys very strong power Explain by giving five points. Q5. Examine the three tire system of rural level government. Q6.When and why were government powers decentralized? What are the important features of decentralization? *****************************

8 ग र ष म वक श ग ह क र य कक ष -10 ( सत र ) 1- अपन आसप स क प र क त क द श र क वर यन शब द म क त ए 2- कल पन क त ए कक आप तशक ष म त र ह, व यम न तशक ष प रर ल म आप क र पर व यन च ह ग? 3- अपन पर व र तमत र क स थ ककए गए र त र क वर यन क त ए औ स भव ह तचत र भ लग ए 4- तनम नतलत तवषर प शब द म अन च छ द तलत ए अन श सन क महत व 2- आ क षर कक न उतच, कक न अन तच

9 I. AQaaoilaiKtanaaM p`snaanaama\ ]<arm ilakt 1 Xaardayaa: maukm kidrxama\ Aist? 2 ksyaa: vadnama\ AmBaaojaimava ivarajato? 3 ka Ba@toBya: sava-m ddait? 4 Xaarda ku~ sainnaiqam iëyaat\? 5 Xaarda vadnaambaujao ikm kuyaa-t\? 6 koyaam mauko Xaarda sainnaiqam kuyaa-t\? 7 k: ApUva-:? 8 Baar%yaa: kaoxa: kidrxa: Aist? 9 k: vyayat: variwma\ Aayaait? 10 &anam kqam variwma\ Aayaait? 11 &anam kqam xayama\ gaccit? 12 sahcayaat\ &anasya dxaa ka? 13 ApUva-: kaoxa: ksyaa: samaipo Aist? 14 ivavyaa samam ikma\ naaist? 15 kona samam du:km naaist? 16 kona samam tp: naaist? 17 k: pu$yam p`*laadyait? ga`iymaavakasa garhkaya-ma\ kxaa dsamai ivayayama\ samskrtma\

10 18 kidrxai vaanai pu$yam p`*laadyait? 19 ko pu$yam na p`*laadyaint? 20 QaIgauNaa: kit saint? 21 iqaya: phcama: gauna: k:? 22 kit pazka: gaunaa:? 23 &anasya p`qamam padm Ca~: ksmaat\ p`apnaaoit? 24 &anasya iwtiyam padm &anam Ca~: ksmaat\ p`apnaaoit? 25 vaa=\mayam tp: ikm kiqatma\? II.AQaaoilaiKtoYau rokamiktpdanaam sainqam ivaccodm vaa ku$t 1 ivaynavao nama:. 2 ga`amao ismana\ Anaoko kryaka: vasaint. 3 ett Aasanama\ kvao + e Aist. 4 BaaO + [k: mama pu~: Aist. 5 pavanam vaodman~m pztu Bavaana\. 6 p`baao +A~ kqama\ Aagat:? 7 tao + Avadtama\ ikma\? 8 Baarit² tva ApUva-: kaosaao yama\. 9 eya: gao + Ak: kda gaasyait? 10 nayanam SarIrsya mah<vapuna-ma\ A=\gama\ Aist. III. AQaaoilaiKtanaaM ica~anaam vana-nam p`d<apdanaam sahayatyaa phcavaa@yaoyau ku$t

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