Rich Harvest Public School HOLIDAY HOMEWORK (2018-19) CLASS: IX * Note: The holiday homework should be done on separate registers/notebooks as per the given instructions.submit the same by 6 th july 2018 ENGLISH: Q1 Collect any five news items on the given issues. Paste them in a scrapbook and comment on any two in 120-150 words. Work on the following topics: (a) Environmental issues (b) Technological developments (c) Women centric issues Q2.(a) Read chapters 1 to 10 of the novel Three Men in a Boat. (b) Write 10 diary entries based on important incidents from the novel (c) Create interesting character sketches of the three friends, using following points: Their appearance, things they said, how they acted, their feelings about themselves, interesting quotes and any additional information Q3.Complete the story (word limit: 100-200 words). Having run to & fro in a rage of running for a while, he stood defeated, his cries suppressed into sobs... HINDI: 1. मच द क कह नय प ढए! तथ उसम एक म ख कह न ग द न क ल खए! व ष क य ह र क अन स र मह न क न म रचन मक य स क जए! 2. नब ध ल खन क जए! (अ) व पन क द नय य र, (ख) व छ भ रत अ भय न 3. द ल क ग त म द न म आय जत प तक म ल क ववरण द त ह ए म क प ल खए! 4. च न व क क रण आप क घर क द व द व र न र लखन और प टर चपक न स ग द ह गई ह! इस सम य क ओर य न आक ष त करत ह ए द नक ह द त न क स प दक क प ल खए! 5. र ज न ह द क स म च र प प ढए तथ एक म य सम च र क एक त करक च ट म चपक इए! Page 1 of 6
MATHS: Q.1Find the decimal representation of the following:- I. 16 45 II. 22 13 III. 437 999 Q.2 Give an example of two irrational numbers, whose I. Difference is a rational number. II. Product is an irrational number. III. Quotient is a rational number. IV. Sum is a rational number. Q.3 Represent the following in form:- I. 0.675 II.-25.6875 III.2.317 IV.15.712 Q.4 Represent 3 on the number line. Q.5 Examine whether the following numbers are rational or irrational:- I. 3 8 2 III. 1.44 IV. 2 + 3 2 Q.6 Simplify the following:- 5 I. 243x 10 y 5 z 10 III. 2 5 8 2 5 13 II. 3 + 2 2 3 3 2 2 + 3 2 II. x 3 y 4 xy 1 2 IV. 5 1 7 2 5 2 7 4 7 2 5 2 7 3 5 3 7 5 V. 16 2 1 4 2 VI. (25) 1 3 16 2 2 2 2 2 3 16 Q.7 Prove that:- I. 9 3 1 2 3*5 0-1 2 = 15 II. 2 2 1 = 3 81 2 1 2 2 Q8. Find the values of a and b for the following equalities:- I. 2 3 = a b 6 4 2 II. = a b 3 2 2 3 2 2 Q.9 Simplify the following:- I. 2 7 5 3 II. 16 41 5 III. 2 3 5 2 3 3 3 5 2 IV. 3 2 2 3 3 2 2 3 + 12 3 2 Q.10 Find the degree of each of the following polynomials:- I. 4x 4 + 6x 2 3x 7 II. 7-3x 2 4x 4 III. 4 x3 + 3x 2 IV. 4 Q.11 Find the values of each of the following polynomials at the indicated value of the variables:- I. q(y) = 3y 3 4y + 11 at y = 2. II. p(x) = 2x 3 13x 2 + 17x +12 at x = -1. III. f(x) = 8x 2 3x +7 at x = 2. IV. r(t) = 2 + t + 2t 2 t 3 at t = -1. Q.12 Find the zeros of the following polynomials:- I. p(x) = 4x 2 II. p(x) = ax + b III. p(x) = 5x IV. p(x) = x 5 Q.13 If x=2 and x=0 are the roots/zeros of the polynomial f(x) = 2x 3-5x 2 +ax+b. Find the values of a and b. Q.14 Find the remainder when 4x 3-3x 2 +2x-4 is divided by x+2. Page 2 of 6
Q.15 If two polynomials f(x) = ax 3 +4x 2 +3x-4 & p(x)=x 3-4x+a leave the same remainder when divided by (x-3). Find the value of a. Q.16 Show that (x-1) is the factor of x 10 1. Q.17 Check whether the polynomial f(x) = 3x 2 +7x is a multiple of 3x+7. Q.18 Factorise the following by using Factor Theorem. I. y 2-5y + 6 II.x 3 + 6x 2 + 11x + 6 Q.19 Find the value of k, if x - 1 is the factor of the p(x) in each of the following cases I. p(x) = 2x 2 + kx + 2 II. p(x) = 4x 3 + 3x 2-4x + k Q.20 Find the value of a if x-a is a factor of x 3 - a 2 x + x + 2. SCIENCE: CH-MOTION PHYSICS 1. (a) Identify the kind of motion in the following cases: (i) A car moving with constant speed turning around a curve. (ii) An electron orbitting around nucleus. (b) An artificial satellite is moving in a circular orbit of radius 36,000 km. Calculate its speed if it takes 24 hours to revolve around the earth. 2. (a) Define average speed. (b) A bus travels a distance of 120 km with a speed of 40 km/h and returns with a speed of 30 km/h. Calculate the average speed for the entire journey. 3. Define uniform and non-uniform motion. Write one example for each. 4. What is the odometer of an automobile measure? Which of the following is moving faster? Justify your answer. (i) A scooter moving with a speed of 300 m per I minute. (ii) A car moving with a speed of 36 km per hour. 5. A car travels from stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50 km/h. Find (i) displacement of the car. (ii) distance travelled by the car. (iii) average speed of the car. 6. Velocity-time graph for the motion of an object in a straight path is a straight line parallel to the time axis. (a) Identify the nature of motion of the body. (b) Find the acceleration of the body. (c) Draw the shape of distance-time graph for this type of motion. 7. Draw the shape of the distance-time graph for uniform and non-uniform motion of object. A bus starting from rest moves with uniform acceleration of 0.1 ms 2 for 2 minutes. Find (a) the speed acquired. (b) the distance travelled. 8. (a) Define uniform acceleration. What is the acceleration of a body moving with uniform velocity? Page 3 of 6
(b) A particle moves over three quarters of a circle of radius r. What is the magnitude of its displacement? 9. A bus accelerates uniformly from 54 km/h to 72 km/h in 10 seconds Calculate (i) acceleration in m/s 2 (ii) distance covered by the bus in metres during this interval. 10. A car moves with a speed of 30 km/h for half an hour, 25 km/h for one hour and 40 km/h for two hours. Calculate the average speed of the car. FUNCTIONAL UNIT OF LIFE BIOLOGY 1. Prepare a model to compare plant cell and animal cell using common household items like pulses and grains etc. 2. Discuss the role of:- a)cellulose in cell wall. b)presence of deeply folded membrane in mitochondria. c) Digestive enzymes in lysosomes. 3.With the reference to size of the plant cell fill A,B,C,D,E and F in the following table:- Solution type Outside medium Result Cause Hypertonic A Cell shrinks Plasmolysis B Same C E Concentration Hypotonic Dilute Solution D Turgid 4. Write Difference between Eukaryotic and Prokaryotic cell 5.Write the main function of each:- a)cell membrane b)mitochondria c)nucleus d)ribosome e)cytoplasm f)golgi body g) Cell wall(in plant cell) MATTER IN OUR SURROUNDINGS:- CHEMISTRY 1. Name the process which occurs when a drop of dettol is added to water. 2. Define density and give its S.I unit. 3. How does evaporation differ from boiling? 4. Discuss the various factors that affect the rate of evaporation Page 4 of 6
5. Which gas is called dry ice?why? 6. How does the water kept in earthen pot become cool during summer? 7. What are the characteristics of particles of matter? 8. What causes more severe burns-boiling water or steam? 9. Convert the following temperature to Celsius scale:- a)300k b)573k 10.Define:-a) Latent heat of fusion b) Latent heat of vaporization SOCIAL SCIENCE: Q1. What is Production? Discuss all the factors of Production in detail. Q2. Define Irrigation. What are the sources of Irrigation? Q3. Discuss Farming and Non-Farming activities in detail. Q4. What do you understand by PEOPLE AS RESOURCE? Q5. What is the role of Education and Health in Human Capital Formation? Q6. Describe Economic and Non Economic activities? Q7. Find the number and names of Union territories along the Western and Eastern coasts? Q8. Collect information about SILK ROUTES. Q9. What is DEMOCRACY? Why it is considered to be a best form of government? Q10. What is the importance of Constitution in a Democratic Country? Q11. Name the country where women do not have the right to vote. Q12. Discuss the fall of Bastille. Q13. Why was France forced to increase the taxes? Q14. Discuss the situation that led to Subsistence crisis. Q15. Study two backward areas in India with their Production pattern? PROJECT WORK: DO A DETAILED STUDY ON ELECTIONS IN INDIA GUIDELINES FOR THE PROJECT a. Project to be done on A-4 size sheet b. Project should be hand written for 15 pages c. On the first page student performa to be given - Name, Class, Roll No., Name of the School d. Acknowledgement e. Content or Index f. At the last Bibliography or references g. Newspaper cuttings, maps, diagram, illustrations are must. COMPUTER 1.Priya the owner of a electronics shop,wants to calculate the final price (total amount+sales tax amount) of the grocery items in her store. She has created the worksheet for this purpose. The sales tax amount is 8.6% of the total amount.solve the following problems. Page 5 of 6
i. Find out the total amount and write the formula for the cell D2. ii. Find out the Sales tax amount and write the formula should be applied on cell E2. iii. What is the final Price after adding sales tax into total amount. 2. Riya has to create a worksheet that will calculate the area and circumstances of a circlefor radius ranging from 1 cm to 10 cm taking the value of Pi= 3.14. Solve the given problem? 3.A large commercial organization uses a LAN network to manage its business.the server supports over 30 stations distributed over three floors in the building(with a maximum of 12 computers per floor).each group of computers on each floor is connected to a switch. a. Explain the term LAN. b. Give at least two business advantages for the company to use a LAN network. c. Mention the disadvantages for the company to use a LAN Network xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Page 6 of 6