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Laxman Public School Winter Holiday Homework (2016-2017) Class IX Subject: FIT Instructions 1. Platform: MS PowerPoint/ Open office presentation. 2. Submit Softcopy of presentation. Activity: Prepare Presentation 1. Ms. Meeramani has recently joined a construction company as Marketing Executive. She saw a presentation about the company. She however is not satisfied with it and wants to make some changes in it. Using your presentation skills, suggest the features to accomplish the following changes: a. Add the company’s logo (stored as a file on her computer) on the first slide. b. Add audio to each slide to explain the content of the slide. c. Add an effect while shifting from one slide to another during a slide show. d. Add slide numbers automatically at the bottom of each page.

Laxman Public School Winter Holiday Homework (2016-2017 ...laxmanpublicschool.com/wp-content/uploads/2016/12/class-9.pdf · कीचड़ का काव्य 1. रेखक

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  • Laxman Public School

    Winter Holiday Homework

    (2016-2017)

    Class IX

    Subject: FIT

    Instructions

    1. Platform: MS PowerPoint/ Open office presentation.

    2. Submit Softcopy of presentation.

    Activity: Prepare Presentation

    1. Ms. Meeramani has recently joined a construction company as Marketing

    Executive. She saw a presentation about the company. She however is not

    satisfied with it and wants to make some changes in it. Using your

    presentation skills, suggest the features to accomplish the following

    changes:

    a. Add the company’s logo (stored as a file on her computer) on the first

    slide.

    b. Add audio to each slide to explain the content of the slide.

    c. Add an effect while shifting from one slide to another during a slide

    show.

    d. Add slide numbers automatically at the bottom of each page.

  • कऺा – 09 विषय – हहॊदी

    Second term (2016-17)

    द्वितीय सत्र (SA2) िैऻाननक चतेना के िाहक चॊद्रशखेर िेंकट रामन 1. याभन ्ऩय अऩने पऩता के सॊस्कायों का क्मा बेदबाव था? 2. याभन ्की सपरता का बायत के नवमुवकों ऩय क्मा प्रबाव ऩड़ा? 3. याभन ्के व्मक्क्तत्व ऩय टिप्ऩणी कीक्िए. 4. वैऻाननकों के सोचने का ढॊग कैसा होता है? कीचड़ का काव्य

    1. रेखक ने कीचड़ भें सौंदमय के दर्यन कहाॉ-कहाॉ ककए? 2. रेखक ने कीचड़ की भहानता को कैसे ससद्ध ककमा है? 3. कीचड़ का काव्म भें उगी सुफह की क्मा पवर्षेता थी? 4. कीचड़ औय पसरों का सम्फॊध अऩने र्ब्दों भें सरखखए.

    धमम की आड़ 1. रोग धभय के नाभ ऩय क्मों उफर ऩड़ते है? 2. रेखक ने साधायण आदभी को भूखय क्मों कहा है? 3. सच्ची उऩासना का अथय स्ऩष्ि कीक्िए. 4. ‘धभय औय ईभान को िाने मा न िाने’ रेखक ने ककन रोगों के सरए औय क्मों

    कहा है? काव्य खॊड एक पूऱ की चाह प्रश्न – 1 सुखखमा ने अऩने पऩता से देवी के प्रसाद का एक पूर क्मों भाॉगा? प्रश्न – 2 कपवता भें फासरका के पऩता के भन भें बम क्मों था? प्रश्न – 3 इस कपवता से आऩको क्मा प्रेयणा सभरती है? प्रश्न – 4 कपवता भें सभाि भें व्माप्त ककस सभस्मा की ओय सॊकेत ककमा गमा है? अऩने पवचाय प्रकि कयो. गीत-अगीत प्रश्न -1 ‘गीत-अगीत’कपवता भें प्राकृनतक सौंदमय व भानवीम प्रेभ की असबव्मक्क्त ककन बावों भें की गई है? प्रश्न – 2 अगीत की क्स्थनत ककन-ककन ऩात्रों भें घटित होती हैं? प्रश्न – 3 र्ुक औय र्ुकी के गामन भें क्मा बेद है? प्रश्न – 4 कपवता भें ककन-ककन को गीत गाने वारा कहा गमा है?

  • सॊचयन मेरा ननजी ऩुस्तकाऱय प्रश्न – 1 रेखक ने िारस्िाम, पवक्िय हमूगो औय गोकी की कौन-2 सी यचनाएॉ ऩढ़ी? प्रश्न – 2 ‘स्वाभी दमानॊद की िीवनी धभयवीय बायतीम को पप्रम क्मों थी? . प्रश्न – 3 आऩ अऩने ननिी ऩुस्तकारम के पवषम भें फताइए तथा आऩकी पप्रम ऩुस्तक कौन सी है ? औय क्मों? हाममद खाॉ प्रश्न – 1 हासभद खाॉ का चरयत्र चचत्रण कीक्िए.

    प्रश्न – 2 तऺसर्रा के गाॉव के फािाय का दृश्म कैसा था? प्रश्न – 3 हासभद खाॉ कहानी हभें क्मा प्रेयणा देती है? प्रश्न – 4 रेखक ने हासभद की कुर्रता के सरए ईश्वय से क्मा तथा क्मों प्राथयना की?

    हदए जऱ उठे प्रश्न – 1 गाॊधी िी ऩिेर से सम्फॊचधत ककस फात से नायाि हो गए ? प्रश्न - 2 “इनसे आऩ रोग त्माग औय टहम्भत सीॊखे” ऐसा ककसने औय क्मों कहा? प्रश्न – 3 स्थानीम करेक्िय ने ककस प्रकाय घिना से प्रेरयत हो ऩिेर को चगयफ्ताय कयने का आदेर् टदमा ?

  • CHEMISTRY HOLIDAY HOMEWORK (2016 - 17) CLASS IX

    GENERAL INSTRUCTIONS:

    The assignment should be done on A4 sheets. It should be done in sequential order. It should be submitted on 16/1/2017.

    Q1

    Complete the following table:-

    S.No Name Chemical formula (show working)

    Atomicity (show working)

    Molecular mass (show working)

    1 Aluminium Hydroxide

    2 Cadmium Nitrate

    3 Nickel Iodide

    4 Chromium Sulphate

    5 Zinc Phosphate

    6 Potassium Permanganate

    7 Strontium Hydrogen Sulphate

    8 Lithium Chloride

    9 Sodium Thiosulphate

    10 Barium Oxide

    Q2 Calculate the no. of molecules present in: a) 4 g of Methane. b) 60 g of Carbon Atoms. c) 31 g of Phosphorus Molecules. d) 0.8 g of Iron. e) 0.008 g of Sulphur.

    Q3 Which of the following weighs most: a) 32 g of Oxygen gas. b) 0.5 mole of Iron. c) 3.011 x 1023 atoms of Carbon. d) 2 moles of NaOH.

    Q4 The mass of a single atom of an element X is 2.65 x 10-23 g. What is its atomic mass? What would this element be?

    Q5 Calculate the number of molecules present in 100 g for both water and carbon dioxide.

    Q6 Anand took 5 moles of Sulphur and 5 moles of Zinc atoms in different containers of the same weight.

    a) Which container is heavier? b) Which container has more no. of atoms?

    Q7 Potassium chlorate decomposes on heating to form potassium chloride and oxygen. When 24.5 g of potassium chlorate is decomposed completely, 14.9 g of potassium chloride is formed. If this reaction is in agreement with the law of conservation of mass. Calculate the mass of oxygen formed.

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  • Class – IX

    Chapterwise Questions

    Biology

    TERM II

    WHY DO WE FALL ILL

    (HEALTH AND DISEASES)

    Q.1 What is the most important factor that keeps us healthy?

    Q.2 Give one word for

    i) Diseases which can spread from one person to another.

    ii) Disease which are present since birth.

    iii) Disease which are for short duration.

    Q. 3 Give examples of

    i) Infections diseases

    ii) Non infectious diseases

    iii) Acute diseases

    iv) Chronic diseases

    Q.4 Which antiviral protein is secreted by our body in case of viral infection?

    Q. 5 Name the bacteria that are responsible for peptic ulcers?

    Q.6 How do congenital disorders occur? Can they be cured?

    Q.7 Name the organs which are mainly affected by the following diseases.

    i) Jaundice

    ii) Hepatitis

    iii) AIDS

    iv) Encephalitis.

    Q.8 What preventive measure can be taken against infections diseases ?

    Q.9 What are the different nodes of transmission of diseases ? Also give examples of

    diseases of each mode of transmission.

    Q. 10 How do antibiotics work against bacteria ?

  • DIVERSITY IN LIVING ORGANISMS

    Q.1 Write differences between gymnosperms and pteridophytes.

    Q.2 Give examples of thalophytes.

    Q.3 Write about the heterotrophic eukaryotic organisms and give examples.

    Q. 4 In which phylum is setae present ?

    Q. 5 What are the major divisions of classifications of living beings?

    Q. 6 Classify the following into their respective phylum and mention one

    characteristic

    feature of each? Scorpion, hydra, starfish

    Q. 7 How do characters differs from non-chordate animals?

    Q. 8 Name the class to which a crocodile belongs; mention some important general

    characteristic of this class.

    Q.9 Draw an earthworm and label its parts.

    Q.10 Differentiate between monocot and dicot plants?

    NATURAL RESOURCES

    Q.1 What are the main resources on the earth?

    Q. 2 What are the factors which lead to formation of wind?

    Q.3 What is air pollution and what are the causes and effects for air pollution?

    Q.4 What is the importance of N2 and N2 fixing bacteria?

    Q.5 Give the source of CO2 and state the reason for its increase?

    Q.6 What is green house effect?

    Q.7 How is Ozone layer depleted?

    Q.8 Briefly describe the Oxygen Cycle?

    Q. 9 Explain the physical process of fixing atmospheric N2?

    Q. 10 Explain the availability and existence of water?

    ------------------------

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  • Mathematics Project Class IX

    TERM 1

    a) Define following terms for a triangle - Centroid - Orthocentre - Incentre - Circumcentre

    b) Using ruler and compass locate centroid for all 6 types of triangles

    (equilateral, isosceles, scalene, right angled triangle, acute angled triangle and obtuse angled triangle). Use the following table to record the observations

    CENTROID Interior Exterior On side Observation

    Scalene

    Isosceles

    Equilateral

    Acute angled

    Obtuse angled

    Right angled

    c) Similarly locate ‘Orthocentre’, ‘Incentre’ and ‘Circumference’ for all six

    types of triangles and record your observations.

    d) Have you observed anything unique for equilateral triangles? Explain

    TERM 2

    1. History of the number ‘’

    Objective: Investigate various historical aspects of the number ‘’

    Knowledge about ‘’ in various ancient civilisations

    Approximation for ‘’

    Circle and ‘’

    Famous mathematical problems involving ‘’

    2. History of number zero

    Origin of zero

    Role of zero in development of number system

  • Mathematics Assignments Class IX Term II 2016 – 17

    –1–

    CHAPTER 4: LINEAR EQUATIONS IN TWO VARIABLES

    Q1 Draw line x = y, name the point at which it intersects x and y axis.

    Q2 Write equation of line parallel to y axis and is at distance of 3 units to the right of origin.

    Q3 Write equation of line parallel to x axis and at a distance of 2 units below x axis.

    Q4 Twice the ordinate of a point decreased by 3 times the abscissa is 6. Express the given sentence in the form of an equation and also plot it.

    Q5 Draw graphs of equations x + 2 = 0 and y – 3 = 0. Do these lines intersect? What relationship do you find between these lines?

    Q6 Find four different solutions of equation 2x – 3y = 4

    Q7 Draw graph of 4x – 3y = 12 and use it to find area of triangle formed by this line and coordinate arms.

    Q8 Draw graph of following equation and also write the coordinate of points where they intersect x axis and y axis.

    a) 2y – x = 8 c) y – 2x = 1 e) 2x + 5 = 1 b) 5y – x = 14 d) 3 y – x = 5

    Q9 If 6 eggs can be bought for `18, find graphically how many eggs can be bought for `27? Also find cost of 4 eggs.

    Q10 Solve for ‘x’ and verify:

    a) 4

    32

    4

    3

    5

    32

    xxx

    b) 2)2)(13()1)(1(3 xxxx

    c) 3324)13(3 xx

    HOTS

    Q11 From a stationery shop Anuj bought two pencils and 3 chocolates for `11 and Sumit bought one pencil and 2 chocolates for `7. Represent the problem in the form of a pair of linear equations. Draw the graphs of these equations and find their point of intersection.

    Q12 Solve the equations a) 5x – 7 = 3x + 2 b) 3y – 2 = 7 y + 5

    Represent the solution on a) Number line b) Cartesian plane

  • Mathematics Assignments Class IX Term II 2016 – 17

    –2–

    CHAPTER 8: QUADRILATERALS

    Q1 In figure ABCD is a parallelogram. Compute values for x and y.

    Q2 Prove that in a parallelogram bisectors of any two consecutive angles intersect at 90o.

    Q3 If ABCD is a quad in which AB || CD and AD=BC. Show that A = B

    Q4 In a parallelogram ABCD bisector of A also bisects BC at P. Prove that AD = 2AB

  • Mathematics Assignments Class IX Term II 2016 – 17

    –3–

    Q5 PQRS is a parallelogram. PO and OQ are bisectors of P and Q. Line LOM is parallel to PQ. Prove that (a) PL = QM (b) LO = OM

    Q6 In a ABC median AD is produced to P such that AD = DP. Prove that ABPC is a parallelogram.

    Q7 Prove that angle bisector of a parallelogram form a rectangle.

    Q8 Show that quadrilateral formed by joining midpoints of sides of a square is a square.

  • Mathematics Assignments Class IX Term II 2016 – 17

    –4–

    Q9 In fig ABCD and PQRC are rectangles and Q is midpoint of AC. Prove that DP = PC; PR = ½AC

    Q10 Prove that four triangles formed by joining in pairs the midpoints of three sides of a triangle are congruent to each other.

    Q11 In fig AD and BE are medians of ABC and BE || DF. Prove that CF = ¼AC

    Q12 Show that line segment joining midpoints of opposite sides of a quadrilateral bisect each other.

    Q13 ABCD is a parallelogram E and F are mid points of sides AB and CD respectively. Prove that segment AF and CE trisect the diagonal BD.

    Q14 Point A and B are on same side of line m. AD m and BE m and meet m at D and E respectively. If C is midpoint of AB show that CD = CE.

  • Mathematics Assignments Class IX Term II 2016 – 17

    –5–

    CHAPTER 9: AREA OF PARALLELOGRAMS AND TRIANGLES

    Q1 ABCD is a quad and BD is one of its diagonals. Show that quad ABCD is a parallelogram and find its area.

    Q2 Show that line segments joining the midpoints of a pair of opposite sides of a parallelogram divides it in two equal parallelograms.

    Q3 Triangles ABC and DBC are on same base BC, with A, D on opposite sides of line BC such that

    ar(ABC) = ar(DBC). Show that BD bisects AC.

    Q4 Show that median of a triangle divides it into two triangles of equal area.

    Q5 Prove that area of an equilateral triangle is 24

    3a where a is the side of equilateral triangle.

    Q6 ABCD is a parallelogram and G is a point on AB such that AG = 2GB. E is a point on DC such that CE = 2DE and F is a point on BC such that BF = 2FC

    Q7 If E, F, G , H are respectively the midpoints of sides AB, BC, CD and DA of parallelogram ABCD then show that

    a) EFGH is a parallelogram b) ar(ABCD) = 2 ar (EFGH)

    Q8 In fig D and E are two points on BC such that BD = EC = DE. Show that ar(ADE) = ar(AEC)

  • Mathematics Assignments Class IX Term II 2016 – 17

    –6–

    HOTS

    Q9 ABCD is a parallelogram. X & Y are midpoints of BC and CD respectively. Prove that

    ar(AXY)=⅜ar(||gm ABCD)

    Q10 In ABC, D E F are respectively midpoints of sides AB, BC and AC. Find the ratio of ar(DEF)

    and ABC.

  • Mathematics Assignments Class IX Term II 2016 – 17

    –7–

    CHAPTER 10: CIRCLES

    Q1 O is the centre of a circle with radius 5cm. If AB = 6cm and CD=8cm, AB || CD, find PQ

    Q2 If a diameter of a circle bisects each of the two chords prove that chords are parallel.

    Q3 Given arc of a circle. Do construction to find radius of the circle of which the arc is a part.

    Q4 Show that if two chords of a circle bisect one another then they much be diameters.

    Q5 In fig P is the centre of the circle. Prove that XPZ = 2(XZY + YXZ)

    Q6 If side of a cyclic quadrilateral is produced prove that exterior angle is equal to opposite interior.

    Q7 Prove that a cyclic parallelogram is a rectangle.

    Q8 If two non parallel sides of a trapezium are equal then prove that it is cyclic.

  • Mathematics Assignments Class IX Term II 2016 – 17

    –8–

    HOTS

    Q9 AB and CD are two parallel chords of a circle which are on opposite sides of the centre, such that AB=10cm and CD=24cm and the distance between AB & CD is 17cm. Find radius of the circle.

    Q10 Two circles of radius 10cm and 17cm intersect and length of common chord is 16cm. Find distance between their centres.

    Q11 AB is a chord of a circle with centre O. AB is produced to C such that BC = OB. CO is joined and

    produced to meet the circle in D. If ACD = yo and AOD=xo show that x=3y Q12 In figure AOB = zo, PSQ=xo, ARB=yo Prove that x + y = z

  • Mathematics Assignments Class IX Term II 2016 – 17

    –9–

    CHAPTER 11: CONSTRUCTIONS

    Q1 Construct angles of following measures using ruler and compass and label them a) 90o b) 30o c) 15o d) 22½o

    Q2 Draw AB = 8.4cm using ruler and compass locate a) ¼ AB = AP b) ¾AB = AR

    Q3 Construct a right triangle whose base if 12cm and sum of its hypotenuse and other side is 18cm.

    Q4 Construct XYZ in which y = 30o, z = 90o XY + YZ + ZX = 11cm

    Q5 Construct PQR in which PQ = 5.4cm P = 30o and PR + QR =7.6cm

    Q6 Construct ABC in which AC = 6.8cm AB – BC = 2cm C = 60o

    Q7 Construct ABC in which BC = 5.2cm B=30o AC – AB = 2.2cm

    HOTS

    Q8 Construct a right triangle one of whose altitude measures 5cm.

    Q9 Construct an isosceles triangle whose base is 5cm and the vertical angle if 70o.

    Q10 Construct a right triangle whose hypotenuse measures 5.5cm and length of one side containing right angle is 4.5cm

  • Mathematics Assignments Class IX Term II 2016 – 17

    –10–

    CHAPTER 7: SURFACE AREA AND VOLUME

    Q1 Three cubes of side 6cm each are joined end to end. Find volume and surface area of resulting cuboid.

    Q2 How many litres of water will flow out through a pipe having area of cross section 5cm2 in one minute if speed of water is 30cm/sec?

    Q3 A cone of radius 7cm has curved surface area 550cm2, find its volume.

    Q4 If V is volume of cuboid, ‘s’ is its total surface area and ‘a’, ‘b’ & ‘c’ are its edges then prove

    cbasV

    11121

    Q5 Find volume of cone formed by revolving a right angled triangle of base 7cm and height 9cm about its height.

    Q6 A semicircular sheet of metal of diameter 28cm is bent to form a conical cup. Find volume of the cup.

    Q7 If ‘h’, ‘c’ and ‘v’ are respectively the height, curved surface and volume of a cone then prove

    that 3vh3 – c2h2 + 9v2 = 0

    HOTS Q8 The sum of the radius of base and height of a cylinder is 37cm.

    Q9 Find cost of sinking a tube well 280m deep having diameter 3m at a rate of `3.60/m2. Find cost of cementing inner curved surface at `2.50/m2.

    Q10 The diameter of a sphere is 42cm. It is melted and drawn into cylindrical wire of 28cm diameter. Find length of wire.

    Q11 The volume of a sphere is divided by its surface area; the result is 27 cm. Find diameter of sphere.

    Q12 The volume of a conical tent is 1382/7m3 and its vertical height is 4m. Find the area of canvas

    required to make the tent and also find the cost of canvas at `120/m2 given that 74.533

    Q13 Circumference of base of a cone is 88cm. If its vertical height is 10cm, then find its volume.

    Q14 A solid rectangular block of dimension 4.4m x 2.6m x 1m is cast into a cylindrical pipe of internal radius 30cm and thickness 5cm. Find length of pipe.

  • Mathematics Assignments Class IX Term II 2016 – 17

    –11–

    CHAPTER 14: STATISTICS Q1 The class marks of a distribution are 61, 66, 71, 76, 81, 86, 91, 96.

    Find class size, class limits and true class limits. Q2 The relative humidity (in %) for Delhi for month of August as given by Meteorological

    Department is as follows 90, 97, 92, 95, 93, 85, 83, 85, 83, 77, 83, 77, 74, 60, 71, 65, 74, 80, 87, 82, 81, 76, 61, 58, 58, 56, 57, 54

    Construct grouped frequency distribution table taking one class as 50 – 55 (55 not included)

    Q3 Find mean of all factors of 24.

    Q4 Find mean of all composite numbers between 1 to 20

    Q5 The mean of 50 observations was 250. It was detected on checking that 165 was copied wrongly as 115 for computation of mean. Find correct mean.

    Q6 The mean of six numbers is 20. If one number is deleted their mean is 15. Find the deleted number.

    Q7 A cricketer has mean score of 60 runs in 10 innings. Find out how many runs are to be scored in eleventh inning to raise the mean score to 62.

    Q8 The median of the following observations arranged in ascending order 8 , 9, 12, 18, (x+2), (x+4), 30, 31, 24, 39 is 24. Find x.

    Q9 The perimeter of an isosceles triangle is 32cm. The ratio of equal side to its base is 3:2. Find area of the triangle.

    Q10 For what value of ‘x’ mode of following data is 17? 15, 16, 17, 14, 17, 16, 13, x, 17, 16, 15, 15

    Q11 Calculate the value ‘a’ if mean of the following is 15 x 5 10 15 20 25 f 6 a 6 10 5

    Q12 The daily earnings of 50 workers are given below. Draw a histogram.

    Daily earnings (`) 125 – 134 135 – 144 145 – 154 155 – 164 165 – 174

    No. of workers 2 7 13 16 12

    Q13 For the following data draw a histogram and frequency polygon

    Age (in years) 0 – 6 6 – 12 12 – 18 18 – 24 24 – 30 30 – 36 36 – 42

    No. of persons 6 11 25 35 18 12 6

    Q14 Construct a frequency polygon for the given data

    Marks 0 – 10 10 – 20 20 – 30 30 – 40 40 – 50 50 – 60

    No. of students 7 10 23 51 6 3

    HOTS

    Q15 In a school 90 boys and 30 girls appeared for a public exam. Mean marks of boys was 45% where as mean marks for girls was 70%. Find average marks of school.

  • Mathematics Assignments Class IX Term II 2016 – 17

    –12–

    CHAPTER 15: PROBABILITY

    Q1 A dice is thrown 400 times, the frequency of outcome are noted

    Outcome 1 2 3 4 5 6

    Frequency 75 60 65 70 68 62

    Find probability occurrence of (a) odd number (b) even number (c) prime number (d) number > 5 (e) number < 4 (f) a composite number

    Q2 A recent survey found that ages of workers in a factory is distributed as follows

    Age (in years) 20 – 29 30 – 39 40 – 49 50 – 59 60 and above

    No. of workers 38 27 86 46 3

    If a person is selected at random find the probability a) 40 years or more b) Having age from 30 to 39 c) Under 60 but over 39 d) Under 50 but over 29

    Q3 Following is the frequency distribution of height of students in class of 30 students (in cm)

    Height 136 – 140 141 – 145 146 – 150 151 – 155 156 – 160 161 – 165

    Frequency 3 5 10 6 4 2

    Find the probability that a student selected at random from the class has height a) At most 150cm b) at least 146cm c) not more than 160cm

    Q4 Give an example each for when (a) Probability of an event is 1 (b) Probability of an event is 0

    Q5 If probability of winning a game is .3. Find the probability of losing it.

    HOTS Q6 In a family there are three children. Find probability (a) at least one boy (b) at most one boy.

    Q7 Find probability of 53 Tuesdays in a leap year.

  • Winter Vacation Assignment Dec. 2016

    Class-XI

    Physical Education Project

    Topic-Rio Olympic

  • Holiday Homework

    Class –IX

    Physics

    Floatation

    Do the question answer in your physics notebook

    1. Write the relationship between buoyant force acting on an object and weight of the liquid

    displaced by it.

    2. Name the force experienced by an object in a fluid when immersed in it. What is its

    direction?

    3. Relative density of aluminum is 2.7 Explain this statement.

    4. Give any two examples where Archimedes principles is applied.

    5. Why does a block of wood held under water rise to the surface when released?

    6. A balloon filled with hydrogen gas floats in air. Explain why ?

    7. Explain, why a truck or a motor bus has much wider tyres ?

    8. The following figure shows three identical blocks of wood floating in three different

    liquids A, B and C of densities d1 , d2 and d3 respectively. Which of these has the highest

    density. Give reasons to justify your answer .

    9. When an object is immersed into the fluid, two forces act on the object in the vertically

    opposite directions. Name them and also write the factors on which the magnitude of

    these forces depends on.

    10. Find the ratio of the pressure exerted by a block of 200N when placed on a table top

    along its two different sides with dimensions 20cm x 15cm and 30cm x 15cm.

  • WORK, ENERGY AND POWER

    1. A body of mass 2 kg is moving in a circular path of radius 2m. How much work is

    done on the body?

    2. Identify the kind of energy possessed by

    a) Flowing water

    b) Cricket ball just before being caught by a fielder

    c) Energy stored in wrist watch.

    3. State the relation between commercial unit of energy and joule.

    4. State the physical quantity which will be affected by changing the rate of doing work.

    5. Two bodies of same mass start from rest and move with velocities of v and 2v

    respectively. Find the ratio of their kinetic energies.

    6. Differentiate between kilowatt and kilowatt hour.

    7. In a house 3 bulbs of 25W are used for 5 hours, 4 tube lights of 40W for 6 hours and 2

    fans of 60W for 12 hours a day. Calculate the units of electricity consumed in a month

    of 31 days. Also find the total expenditure if 1 unit of electricity costs Rs. 2.50

    8. Rajiv is a student of class IX. He was waiting for a bus on a bus stand. He saw an old

    man trying to keep his box on the roof of a bus but was unable to do so. Rajiv picked

    up his box and placed the box on the roof of the bus. The old man thanked Rajiv.

    Answer the following questions based on the above paragraph:

    1. Is the work done by Rajiv while placing the box on the roof of the bus positive or

    negative?

    2. Is the work done by gravity on the box positive or negative?

    3. What values are shown by Rajiv?

    9. A boy and a girl do the same work in 5 minutes and 10 minutes respectively. Which

    of these two has more power and why ?

    10. An object is dropped from a height ‘h’ when is its

    i) Potential energy maximum

    ii) Kinetic energy maximum

  • CLASS IX

    PROJECT WORK (HOLIDAY HW)

    Political science

    Project has to be made on the recent elections in Jammu and Kashmir:

    1. When did the Elections take place?

    2. How many political parties participated in this election?

    3. What was the percentage of the voters who went to the polling booth to cast

    their vote ?

    4. Which political party got the majority number of seats?

    5. Who formed the Government in Jammu and Kashmir later on?

    The Students also have to paste pictures related to the topic.

    ASSIGNMENT OF HISTORY

    CLASS IX-2016-17

    IInd Term

    Forest Society and Colonialism

    1. Who was appointed as the first inspector General of Forests in India? Explain any

    three reforms introduced by him.

    2. Describe some of the common customs and beliefs of the people of Baster.

    3. What new developments have taken place in forestry in India in recent times?

    4. Why were the Kalangs regarded as valuable?

  • 5. What are the similarities between colonial management of the forest in Bastar

    and in Java? Explain.

    6. How did commercial farming led to a decline in forests cover during colonial

    period?

    7. Who was surantiko Samin? What role was played by him in the forest rebellion in

    Java?

    8. What was shifting cultivation? Why was it banned by the British?

    9. What do you understand by ‘scientific forestry’?

    10. How did the people of bastar rebel against the British?

    The Story of cricket

    1. When was the Laws of Cricket drawn up? What was stated in the first written

    laws of cricket?

    2. Why Important innovations were made by Pakistan in the game of cricket?

    3. Explain any three ways in which television coverage has changed the game of

    cricket.

    4. How are the peculiarities of test cricket shaped by its historical beginning as a

    village game?

    5. Why was Mahatma Gandhi against cricket?

    6. What innovations were introduced by Kerry Packer which changed the natue of

    the game of cricket?

    7. Why was the Imperial Cricket council headquarter shifted from London to Dubai

    in the recent past?

  • 8. Name the first Indian Cricket club financed by Indians.

    9. Explain why cricket became popular in India and the west Indies? Why it did not

    become popular in South America?

    10. Till the middle of the 18th century, why were the bats roughly the same shape as

    the hockey sticks?

    11. Why did the test playing nation like India, Pakistan and west Indies boycott South

    Africa?

    Assignments of Economics 2016-2017

    Class IX

    IInd Term

    Poverty as a Challenge

    1. Why do urban areas have a higher poverty line, despite less calorie requirement?

    2. Name the poorest states in India and explain why they are poor?

    3. Give a brief account of inter-state disparities in poverty in India.

    4. How do economic growth bad to poverty reduction?

    5. What are the reasons for the ineffectiveness of the poverty alleviation

    programmes?

    6. State any one aim of the Prime Minister RozgarYojana.

    7. How did indebtness both the cause and effect of poverty? Explain.

    8. What is Social Exclusion? How does social exclusion harm the value of social

    equality in India?

  • 9. Explain Antyodaya Anna Yojana.

    10. Has various schemes launched by the government effective in eradicating

    poverty in India.

    11. How many days of employment are assured every year to rural household

    through NREGA?

    12. Why there is less poverty in Kerala and Tamil Nadu?

    Food Security in India

    1. How is food security ensured in India? Explain

    2. Do you believe that Green Revolution has made India self-sufficient in food

    grains? How?

    3. Why there are still many people food insecure in India?

    4. What has been done by the government to provide food security to the poor?

    5. Why is buffer stock created by the government?

    6. What are the problems in effective functioning of ration ships?

    7. Name the places where famine like condition has been existing for many years?

    8. When and which stamp was released by Prime Minister Mrs. Indira Gandhi.

    9. How does minimum support price help in food security?

    10. In which state 94% fair price shops are being run by the cooperatives?

    11. Which values are not followed by the PDS dealers?

    12. How do relief camps help the victim of natural calamity?

  • ASSIGNMENTS OF POLITICAL SCIENCE 2016-2017

    CLASS IX

    IInd Term

    Electoral politics in Democracy

    1. Who appoints the chief Election commissioner?

    2. How many constituencies are there in India

    3. Why it is good to have political competition?

    4. What is the motive behind reserved constituencies?

    5. What are the limitations of Indian election.

    6. Explain the difference between by election and Midterm Poll?

    7. Why educational qualification is not important for standing in the election?

    Analyze by giving examples.

    8. What is direct democracy?

    9. What are the demerits of political competition?

    10. How many seats are reserved for SC’s , ST’s and womens in the LokSabha?

    11. What is rigging?

    12. What are the challenges to free and fair election?

    Working of Institution

    1. Which political institution can make changes to an existing law of the country?

  • 2. Why is the prime minister not elected directly by the people?

    3. What is ‘ Office Memorandum’?

    4. Why is Parliamentary democracy also knows as ‘cabinet form of government’?

    5. Mention any two power of the supreme Court.

    6. Why is political executive more powerful than the permanent executive?

    7. What do you understand by ‘On Vote, One value’?

    8. Which is the larges legislative assemble in India?

    9. Explain the election produce in India.

    10. What are the restrictions put on political parties during election?

    11. What is the tenure of the president in India? Mention the qualification needed to

    become the president of India.

    12. How is LokSabha more powerful than the RajyaSabha?

    13. Explain the emergency powers of the President of India.

    Democratic Rights

    1. Write a note on Human Rights Commission.

    2. State four constitutional provision for the protection of women and children in

    India.

    3. State any one freedom that is not available to the citizen under the constitution

    of India.

    4. What is Amnesty International?

  • 5. Describe any two features of Rights.

    6. What is Summon?

    7. Differentiate between ‘begar’ and ‘bonded’ labour

    8. What is rule of Law?

    9. Which fundamental right is known as the ‘heart and soul’ of the constitution and

    why?

    10. Mention any two writs that can be issued by the court for the enforcement of the

    fundamental Rights.

    9th FIT Com..pdfC-9 Hindi.pdfchemistry hhw cls 9.pdfC-IX Biology.pdfC-IX IInd Term Chapterwise Questions Bilogy.pdfClass -IX English.pdfClass -IX Sanskrit.pdfMathematics Winter Project ix.pdfmaths assignmnents IX term II.pdfPhysical Education.pdfPhysics C-9.pdfsocial science geography History and Economics 9 with asgnment.pdf