EVERGREEN PUBLIC SR. SEC. SCHOOL Assignment

Sub: (Science ) PhysicsClass IX - 2014-15 [TERM-II]

Ques 1. A sharp knife is more effective in cutting an object than a blunt knife. Explain why? [ 2 M]Ques 2. Give some important applications of Archimede’s Principle. [ 2 M]Ques 3. State Archimede’s Principle. What does it signify. [ 2 M]Ques 4. A cork piece floats on water but an iron nail sinks in water. Why ? [ 2 M]Ques 5. Explain the following : [ 3 M] a). Swimmers are provided with an inflated rubber jacket tube. Why? b). It is easier to swim in sea water than in river water. Why?Ques 6. In a car –lift a car of 1200kg mass is resting on a platform of surface area 10m2 . What pressure should the platform exert on the car so as to lift it?Ques 7. What do you mean by relative density of a substance? What is its unit.Ques 8. While drawing water from a well, the bucket of water appears to be heavier as it comes out of the water.Ques 9. Name the forces acting on a body when it is fully or partially immersed in a liquid . What is their magnitude and function.Ques 10. Find the total thrust acting on the bottom surface of a tank 4m long, 2m broad and 2m deep when fully filled with water. The density of water = 103 kgm-3 . Also calculate the pressure.

Sub :Chemistry

Ques 1. Define the following terms:a. Atom f. Moleb. Isotopes g. Moleculec. Ion h. Polyatomic Iond. Law of conservation of mass i. Formula Unit Mass e. Law of definite proportions j. Avogadro Constant

Ques 2. Write the latin names and symbols for the following elements:a. Lead f. Sodiumb. Mercury g. Copperc. Tin h. Silverd. Iron i. Golde. Potassium j. Tungsten

Ques 3. Name the following compounds:a. CO f. NO2

b. PCl5 g. HClc. CO2 h. HNO3

d. N2O4 i. H2SO4

e. N2O5 j. CCl4

Ques 4. Give the molecular formula of the following:a. Calcium Phosphate f. Iron(III) Sulphate b. Magnesium Chloride g. Ammonium Sulphatec. Copper(II) Sulphate h. Sodium Carbonated. Plumbous Hydroxide i. Chromium Sulphatee. Ferric Chloride j. Sodium Sulphide

f. Copper(I) Oxide k. Potassium OxideQues 5. Select the cation and anion in the following compounds :

a. Na2SO4 e. Ca(HCO3)2 b. Cu (NO3)2 d. AgClc. Fe2O3 f.SnCl4

Sub: BiologyQues 1. State any four conditions for good health?Ques 2. Why are we normally advised to take bland and nourishing food when we are sick?Ques 3. What results is a lack of proper activity to the body?Ques 4. Differentiate between with examples :

i) Chronic and acute diseaseii) Communicable and non communicable

Ques5. Below is given a list of disease write the category of pathogens opposite to each:a. Measles f. Influenza b. Polio g. Kala-Azarc. AIDS h. Sleeping Sicknessd. Diptheria i. Elephantiasise. Whooping Cough j. Chicken Poxf. Tuberculosis k. Mumps

Ques 6. List the organ affected by following diseases and mention their casual organisms as well:a. Malaria e. AIDS b. Jaundice g. Kala-Azarc. Typhoid h. Elephantiasisd. Cancer i. Rabies

Ques 7.Who discovered ‘Vaccine’ for the first time? Name two diseases which can be prevented by using vaccine?Ques 8.Which bacterium causes peptic ulcers?Ques 9. If someone is suffering from cold in your class,it is likely that other classmates sitting around will be exposed to the infection. But all of them actually do not suffer from the disease why? Ques 10.How antibiotic pencillin affects bacteria?Ques 11. Why majority of children in many parts of India are already immune to hepatitis A?Ques 12. List any six vaccines with expand form.Ques 13. “ Precaution is better than cure?”Justify the statement.Ques 14. Classify the diseases on the basis of transmission(medium).Ques 15. What is meant by symptoms of disease? What are the common symptoms observed in patients?

SUBJECT : MATHEMATICSCh: Linear Equation of two variable + QuadrilateralsQ1. Express the equation 5x= –y in general form and indicate the value of a, b and c.Q2. Find the point of which the equation 3x-2y=6 meets the x axis.Q3. Find the value of K is x=2, y=1 is a solution of the equation 2x+3y=KQ4. Give geometric representation of equation 3x+12=0

(i) one variable (ii) two variable.Q5. Express y in term of x from the equation 3x+2y=8 and cheek whether point (4-2) lies on the line.Q6. The point (3, 4) lies on the graph of equation 3y=an+7. Find the value of a.

Q7. Solve for 2

Q8. The parking charges of a car in a parking lot is Rs 30 for first two hours and Rs 10 for subsequent hours taking total parking time to be x hours and total charges as Rs y . Write linear equation in two variables to express the above statement. Draw a graphi for linear equation and read the charge for five hours.

Q9. Draw the graph of each of the equation x –2y –3 = 0 and 4x+3y –1= 0 on the same graph.Q10. If (2,3) and (4,0) lie on the graph of equation ax +by =1. Find the value of a and b.Q11. A and B are friend. A is elder to B by 5 years. B’s sister C is half the age of B while A’s father D is 8

years older than twice the age of B. If present age of D is 48 years. Find the present age of A, B and C.

Q12. Rs 17 is in the form of 50 paisa, 25 paisa and 20 paisa coins. The number of 25 paisa coins is double the number of 20 paisa coins but half the number of 50 paise coins . find the number of coin each type.

Q13. In fig ABCD is a parallelogram. Find x & y

Q14. If <D =105o in a IIgm ABCD, find <A & <B.Q15. In IIgm ABCD, the bisectors for <A also bisects BC at P. Prove that AD= 2ABQ16. In a ABC median AD is produced to x such that AD = DX. Prove that AB x C is a IIgmQ 17. In a quadrilateral ABCD, CO and DO are the disector of <C and <D respectively prove that

Q18. Find x:

]

Subject : SOCIAL SCIENCE [Geography]1. Define the term ‘Monsoon’. 2. Why are hills cooler during summer as compared to plains? 3. What is Coriolis Force? 4. What are Jet Streams? 5. What are subtropical westerly Jet streams and subtropical easterly jet streams? 6. What are ‘Western cyclonic disturbance’? 7. What do you understand by ITCZ? 8. Why the eastern coastal state like Orissa is affected by tropical cyclone? 9. What do you understand by ‘Southern Oscillation’? 10. What is ‘EI Nino’? 11. What do you mean by ‘mango shower’ and ‘Burst of Monsoon’?

12. Why is Shillong rainer than Kolkata? 13. Why is ‘Leh’ called as the ‘cold desert’?

ECONOMICSChapter : Poverty as a challengeQ.1 How many people in India live in poverty ? Q.2 Which country has largest singh concentration of the poor in the world? Q.3 Name and explain the various determinants of poverty? Q.4 What is the basic definition of poverty? Q.5 Is sense of helplessness a dimension of poverty? If yes how? Q.6 Mention the social indicators of poverty.Q.7 What do you mean by social exclusion and how is it caused? Q.8 What do you mean by vulnerability? Q.9 What are the determinants of vulnerability to poverty? Q.10 What do you mean by minimum level? Q.11 What role does income & consumption play in determination of poverty? Q.12 What is the full form of NSSO ? Q.13 At which amount the poverty line for a person was fixed in rural areas as well as in urban

years? Q.14 Who are called as vulnerable groups? Q.15 How did the policies of colonial government ruined traditional markets?Q.16 Which two are the most prominent cause of poverty and how?

CIVICS 1. How many seats are reserved for SC & ST in Lok Sabha? 2. What do you mean by the ‘Universal adult franchise’? 3. What is a party ticket? 4. What are the legal declarations of a party candidate?5. How many constituencies are there for the Lok Sabha Seats in India? 6. What are By Election ? 7. Give two merits and demerits of electoral competition ? 8. What is Voter’s List? 9. What is ‘EVM’ ? How is vote caste on ‘EVM’?10. Define ‘ballot paper’ and ‘polling booth’?11. What do you mean by voter turn out?12. Give any one challenge of Indian election ?

HISTORY1. Why was Dietrich Brandis invited and made the first Inspector General forests in India?

What were his suggestions and how were they implemented? 2. How did the forest act create hardships for the villagers across the country?3. Why did Samin challenge the Dutch in Java? 4. What were the causes of deforestation in India ? 5. Write an essay on Bartar and its communities.6. Describe the causes, events and effects of the sebellion by the people of Bastar against the

colonial rule.7. What is geographical location of java? What was its condition in 1600? Which was its

famous community and why? VALUE BASED QUESTION

8. After the forest act was enacted in 1865, it was amended twice once in 1878 and then in 1927. The act divided forests into three categories. The best was reserved forest.

a) Who was the inspector general of forests in India.b) How valuable were forests for villagers? c) What is the value of timber in our lives.

EVERGREEN PUBLIC SR. SEC. SCHOOLAssignment

Sub: (Science ) PhysicsClass X - 2014-15 [TERM-II]

Ques 1. Give a formula to find refractive index of a glass slab in terms of angle of incidence and angle of refraction. [ 1 M]Ques 2. Differentiate between real and virtual image. [ 2 M]Ques 3. List four properties of image formed by a plane mirror. [ 2 M]Ques 4. Draw a ray diagram to show the (i) position and [ 2 M] (ii).nature of image formed when an object is placed between focus F and pole P of a concave mirror. [2 M]Ques 5. An object is placed at a distance of 12 cm in front of a concave mirror. It forms a real image 4 times larger than the object. Calculate the distance of the image from the mirror. [ 2 M]Ques 6. Draw ray diagrams to show image formed by a concave lens for the object placed (a) at infinity (b) between infinity and optical centre of lens. State the characteristics of image in each case. [ 2 M]Ques 7. An object of 5 cm is placed at a distance of 25 cm from the pole of a concave mirror of radius of curvature 30 cm. Calculate the distance and size of the image so formed. What will be the nature of the image.Ques 8. A convex mirror used for rear view on an automobile has radius of curvature of 3m. If a bus is located at 5m from the mirror, find the position, nature and size of the image.Ques 9. A 4cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 24 cm. Find the position, size and nature of image formed using the lens formula.Ques 10. The image of a candle frame placed at a distance of 45cm from a spherical lens is formed on a screen placed at a distance of 90 cm from the lens. Identify the type of lens and calculate its focal length. If the height of the frame is 2cm, find the height of its image. [3 M]

Sub: Chemistry

Ques 1. Why does carbon form compounds mainly by covalent bonding?Ques 2. List any two reasons for carbon forming a very large number of compounds.Ques 3. An organic acid ‘X’ is a liquid which often freezes during winter time in cold countries, has the formula C2H4O2 .On warming with ethanol in the presence of a few drops of concentrated H2SO4 , a compound ‘Y’ is formed. Compound ‘Y’ has a sweet smell. i). Identify ‘X’ and ‘Y’ ii).Write a chemical reaction for the above and balance the equation.Ques 4. Write the name and formula of the second member of the carbon compounds having functional group i).-OH ii).-COOH iii).-CHOQues5.a). What is meant by homologous series of organic compounds? b). Write the chemical formulae of two members of a homologous series and state which part determines the i. physical properties ii. chemical properties of these compoundsQues 6. a). Name the compound CH3COOH in IUPAC nomenclature . What is it commonly called as? b). Give a chemical test to identify this compound.

c).Name the gas evolved when this compound acts on solid sodium carbonate. How would you identify this gas? Ques 7.Give a chemical test to distinguish between saturated and unsaturated hydrocarbons.Ques 8.a).Name the products formed when ethanol burns in air. b).What two forms of energy are liberated on burning alcohol?Ques 9. Why is the reaction between methane and chlorine considered a substitution reaction?

SUB: BIOLOGY

Ques 1. What is importance of DNA copying in reproduction?Ques 2. Why does mensturation occur?Ques 3. What could be the reasons for adopting contraceptive methods?Ques 4. List two differences between pollination and fertilization.:Ques5. Name two sexually transmitted disease each caused due to bacterial infection and viral infection. How can these be prevented?Ques 6. In human body what is the role of : i). Seminal Vesicle ii). Prostate Gland iii). Cowper’s Gland iv). TestesQues 7.Expand AIDS,HIV,WHO and NGO?Ques 8.What changes are observed in the uterus subsequent to the implantation of young embryo?Ques 9. Describe the role played by male and female hormones in reproduction. Ques 10.Explain the terms and role of: Implantation and placentaQues 11. What are the various methods of vegetative propogation? Discuss any three methods with example.Ques 12. Reproduction is essentially phenomenon that is not for survival of an individual but for the stability of a species. Justify.Ques 13. How are general growth and sexual maturation different from each other?Ques 14. Describe the process of fertilization in a flowering plant. Ques 15. What would be the ratio of chromosome number between an egg and its zygote? How is the sperm genetically different from the egg?

SUBJECT : MATHEMATICS

Chapter : ARITHMETIC PROGRESSIONQ1. For what value of k and 2k, k+10 and 3k +2 in A.P ?Q2. Which of the following can be the nth term of an A.P? 4 n+3, 3n2 +5, n3+ 1 give reasons.Q3. Is 144 a term of the AP: 3,7,14,…..?Q4. If the sum of the first P terms of an AP is ap2 + bp, find its common difference.Q5. The first term of an AP is p and its common difference is q. Find its 10th term.Q6 In an AP, the first term is 2, the last term is 29 and sum of the term is 155. Find the common

difference of the A.PQ7. If the 8th term of an AP is 31 and the 15th term is 16 more than the 11th term, find the AP.Q8. Which term of the arithmetic progression 5,15,25…. Will be 130 more than its 31st term?

Q9. In the mth term of an AP is and nth term is , then show that its (mn)th term is 1.

Q10. If the sum of m terms of an AP is the same as the sum of its n terms, show that the sum of its (m+n) terms is zero.

Q11. The ratio of the sums of m and n terms of an AP is m2 : x2. Show that the ratio of the m th and n th term is (2m-1):(2n-1)

Q12. The sum of n,2n,3n terms of an AP are S1 ,S2 and S3 respectively. Prove that S3 = 3 (S2 - S1)

Chapter : QUADRATIC EQUATION & ARITHMETIC PROGRESSIONQ1. If x2 +5 x+4 k =0 has no real roots, them

(a) K< b) k≥ c) k > d) k ≤

Q2. The sum and product of the roots of the quadratic equation 3x2 –x-2 =0 respectively are :-

(a) , - b) , - c) , d) 1,

Q3. Which term of an A.P 3,15,27,39,….. will be132 more than its 15 th term.Q4. For what values of K, the quadratic equations (k+1) x2 -2 (k-1) x+1=0 has equal roots.

Q5. Solve x 2 - 8 =

x2+20

Q6. Solve for x : 1 _ 1 __ = 11_ , x ‡ -1, ,

X+1 2x-1 7x+9Q7. By increasing the cost of a book by RS 10, a person can buy 10 book less for Rs 1200. Find the

original cost of the book.Q8. Solve for x;

9x2 -9 (a+b) x +(2a2+ 5ab +2b2) =0Q9. If one root of the quadratic equation x2 – 3x +q =0 is twice the other root, find the value of q.Q10. In an A.P given a =-4, d=3 find its 20th term and sum of first 20 terms.Q11. Find the roots of the equation

Q12 If 2 and 3 are the roots of the equation 32 -2 k x +2 m =0. Find the value of k and m.Q 13. The denomination of a fraction is one more than twice its numerator. Of the sum of the fraction

and its reciprocal is find the fraction.

Q14. If the quadratic equation (1+m2)x2 2m cx + (c2 – a2) = 0 has two real roots in x, then prove that c2= a2 (1+m2)

SUBJECT : SOCIAL SCIENCE (ECONOMICS)1. Explain double co-incident of wants? 2. What is a cheque? Describe how cheque payments are made and realized? 3. Describe two different credit situations where credit plays a positive and negative role.4. What is collateral? Given that a large number of people in our country are poor does the

collateral in any way affect their capacity to borrow? 5. What is the difference between formal and informal sources of credit in urban areas? Why do

we need to sectors of credit or loan?6. Describe the pattern of formal and informal to expand formal sources of credit.7. What are self help groups? Describe in brief their aims, functions and importance.

CIVICS1. Explain the movement which took place in Nepal.2. Describe Bolivia’s water war.3. Explain the differences and similarities between popular movements in Nepal and struggles

in Bolivia.

4. What lessons and conclusions can be drawn from the struggles of Nepal and Bolivia? 5. What is a movement? How does it differ from an interest group? Is there any similarity

between the two.6. What are sectional groups ? How do they watch their interests ? explain? 7. What do you understand by sectional interest group and public interest group? 8. Explain various kinds of movements.9. Role played by pressure groups and movements are healthy and useful?

HISTORY

1. How the French established their control over Vietnam ? What were its effects.

2. Explain any 3 steps taken by the French to achieve their aim to exploit the natural resources of Vietnam .

3. Describe the views of Paul Bernard on the question of development of the colonies.

4. Why did French policy makers want to educate the people of Vietnam ? What were the

problems before the French in spreading education to the Vietnamese?

5. What was the cause of plague in Vietnam ? Explain the steps taken by the French to solve the

problem of plague? What were its results ? What was its importance?

6. Explain the causes of the U.S. involvement in the war in Vietnam .

7. What were the effects of U.S. involvement in Vietnam war on the life within USA?

8. Describe the consequences of US entry into war in Vietnam .

9. Describe the role of women in the anti imperial struggle in Vietnam .

10. Write a note on “Go east movement”.

11. Describe the steps taken by the French in the field of education in Vietnam .

12. What were school text books glorified.

GEOGRAPHY

1. What do you mean by minerals ? What are the difference between ‘veins’ and ‘lodes’ ?

2. Give the example of a mineral which is obtained through the weathering process.

3. What do you mean by placer deposits? Give examples of such two minerals.

4. Write two difference between ferrous minerals and non ferrous minerals along with example.

5. Which state is the largest producer of manganese ? Write any three uses of manganese ?

6. Name the mineral which has very less deposit in India. Write any one use of it?

7. What are the uses of Aluminum? Which state is the largest producer of Bauxite?

8. Write any three uses of mica? Which state is the leading producer of mica?

9. What are the uses of limestone?

10. Write any three basic hazards of mining?

11. Why do we need to conserve the minerals?

12. Give the example of any three energy minerals.

13. Which place is the largest producer of petroleum?

14. What are the uses of natural gas? Which river basin is famous for?

15. Write the difference between conventional and non-conventional energy along with their example?

16. What do you mean by Rat Hole mining? In which state of India such kind of minings take place?