Jh Venkateshwar International School Sector-18, Dwarka, New Delhi-78 Holiday Homework Worksheet (2017-18) CLASS-XI ENGLISH Section A Writing Q.1 Schools have been closed due to excessive air-pollution. Prepare a poster to bring out awareness for a clean environment. Q.2 On behalf of your parents draft a formal invitation to be sent to your friends and relatives on the occasion of their fiftieth wedding anniversary. Q.3 As the Principal of a reputed college, you have been invited to inaugurate a book exhibition in your neighbourhood. Draft a reply to the invitation in not more than 50 words, expressing your inability to attend the function. Section B Literature Q.4 In the poem Childhood written by Markus Nathen, the poet found adults hypocrites. Justify the statement. (80-100 words) Q.5 How does the end of the play justify the title Mother s Day? (80-100 words) Q.6 We have not inherited this earth from our forefathers; we have borrowed it from our children. Justify this statement with reference to the article The Ailing Planet: The Green Movement s Role written by Nani Palkhivala. (200-250 words) Note: Revise Integrated Grammar and Note Making exercises from SLM. MATHEMATICS STRAIGHT LINES 1. Find the slope of the line, which makes an angle of 30 with the positive direction of y-axis measured anticlockwise. 2. The slope of a line is double of the slope of another line and the tangent of the angle between them is given as 1/ 3, find the slope of the lines. 3. The base of an equilateral triangle with side 2a lies along the y-axis such that the mid-point of the base is at the origin. Find vertices of the triangle. 4. Without using the Pythagoras theorem, show that the points (4, 4), (3, 5) and ( 1, 1) are the vertices of a right angled triangle. 5. Find the equation of the straight line which makes an angle of 15 0 with the positive direction of x-axis & which cuts an intercept of length 4 on the negative direction of y-axis. 6. Find the equation of line which cuts off an intercept 4 from the x-axis and makes an angle of 30 0 with the y-axis. 1
7. Find the equation of the straight line which passes through the point (1, 2) and makes an angle θ with the positive direction of x-axis where cosθ = 1/3. 8. The length L (in centimetrs) of a copper rod is a linear function of its Celsius temperature C. In an experiment, if L = 124.942 when C = 20 and L = 125.134 when C = 110, express L in terms of C. 9. A line through the point A (2, 0) which makes an angle of 30 0 with the positive direction of x - axis is rotated about A in clockwise direction through an angle 15 0. Find the equation of straight line in the new position. 10. Find the equations of the lines, which cut-off intercepts on the axes whose sum and product are 1 and 6, respectively. 11. Find the equation of the line passing through the point of intersection of the lines 4x + 7y 3 = 0 and 2x 3y + 1 = 0 that has equal intercepts on the axes. 12. Find the equation of the straight line (s) which cut off an intercept 4 from the y-axis and are equally inclined to the axes. 13. Find the equation of line through (3, 4) and parallel to the line y = 3x + 5. 14. Find the equation of the straight line passing through the point (2, 3) and perpendicular to the line 4x - 3y - 10 = 0. 15. Find the area of the triangle formed by the lines y x = 0, x + y = 0 and x k = 0. 16. Find the image of the point ( 8, 12) with respect to the line mirror 4x + 7y + 13 = 0. 17. Find the angle between the lines y - 3 x 5 = 0 and 3 y - x + 6 = 0. 18. Find the distance between the lines 15x + 8y - 34 = 0 and 15x + 8y + 31 = 0. 19. Find the values of θ and p, if the equation x cos θ + y sinθ = p is the normal form of the line 3 x + y +2 = 0. 20. At what point the origin be shifted, if the coordinates of a point (4, 5) becomes ( 3, 9)? Learn POLITICAL SCIENCE ch-2 Freedom & ch-3 equality for the class test on Tuesday. Do the questions given in the SLM of ch-3 &4 (social justice) PSYCHOLOGY CHAPTER 6: LEARNING 1. Learning is a relatively in permanent change in behaviour potential produced by experiences. This process of learning has several distinct characteristics? Explain these characteristics in detail. 2. Differentiate between appetitive and aversive conditioning 3. Discuss the various types of experimental arrangements that can be made during classical conditioning. 2
4. Human beings learn short cuts to attain desired goals through instrumental conditioning. Discuss. 5. Explain the schedules of reinforcement in detail. 6. Explain the phenomenon of spontaneous recovery in detail with the help of diagram. 7. According to a psychologist, one learns a lot through observation and social learning. (a) Which theory is being mentioned here and who gave this theory? (b) Explain the theory with the help of an example. 8. Differentiate between (a) Insight and latent learning (b) Serial & Paired Associate learning. 9. Verbal learning is influenced by several factors Explain those factors in detail? 10. Simran is a 5 years old girl studying in class I. She has difficulty in writing letters, understanding oral instructions, poor motor co-ordination and cannot sustain attention. (a) What is the problem she is currently going through? (b) Explain any other five symptoms in detail. 11. What are the determinants of classical conditioning? 12. What are the determinants of Operant conditioning? 13. Differentiate between classical and operant conditioning. 14. Write short notes on: (a) Reinforcement (b) Extinction (c) Generalization and discrimination (d) Insight learning (e) Latent learning 15. Define the term verbal learning. What are the determinantsof verbal learning? 16. Define the term skill. Explain the phases of skill acquisition. 17. Discuss the factors facilitating learning. 18. Name the psychologists associated with these: (a) Classical conditioning (b) Operant conditioning (c) Observational learning (d) Insight learning (e) Latent learning (f) Skill acquisition (g) Category clustering SOCIOLOGY HOMEWORK: 1) Submission of fair questionnaires with 20 to 25 questions for the Sociology project on Monday. 2) Completing the worksheet and submission of the same. The worksheet contains questions from both Chapter 1 (social structure, social stratification, and social processes in society) and chapter 2 (selected portions). 3) Revise the headings already discussed in the class with respect to Chapter- 2 (Social change and Social order in Rural and urban Society). 3
Worksheet Q1. Explain the following terms briefly: i) Social structure ii) Social stratification iii) Life chances iv) Voluntary and enforced cooperation v) Altruism vi) Alienation vii) Anomie viii) Laissez-faire liberalism Q2. Distinguish between the aspects of mechanical and organic solidarity. Q3. Does the idea of competition always lead to a feeling of enthusiasm and positivity among the competitors? Justify your answer. Q4. Analyse the influence of reinforcement of competition as an ideology in the society. Q5. Can enforced cooperation among the individuals of a society lead to situations of deviance and isolation? Explain your response. Q6. Mention some of the basic characteristics of social change. Q7. Briefly mention about the causes of social change. Q8. What do you understand by the term social order? Is there a scope to deviate from the social order constructed by the society or individuals have to always conform to it? Elaborate on your response sociologically. LEGAL STUDIES Learn page no.144-154 of unit 4 Judiciary : Constitutional, civil and criminal courts and processes. Collect Information on juvenile justice from Internet. Refer page 195 of ch.5 the family justice system from your course book. Practice following questions : ECONOMICS Chapter -10 Measures of Dispersion Q1. Calculate range and its coefficient from the following data on marks obtained by 7 students. 10, 14, 18, 22, 45, 60, 65 Q2. The following are the prices of shares of ABC company Ltd., from Monday to Friday. Calculate range and its coefficient. Days Monday Tuesday Wednesday Thursday Friday Price ( ) 140 160 200 280 170 Q3. From the data given on wages, find range and its coefficient. Wages 100 200 300 400 500 600 700 No. of workers 18 22 37 15 26 42 60 Q4. Find range and its coefficient using the data given below. Marks 20-30 30-40 40-50 50-60 60-70 No. of students 28 14 32 60 70 4
Q5. Find inter-quartile range, quartile deviation and coefficient of quartile deviation from the following data: 30, 31, 40, 35, 47, 44, 42, 48, 50, 55, 56 Q6. Find out quartile deviation and its coefficient from the following data: Roll no. 1 2 3 4 5 Marks 10 20 30 40 50 Q7. Calculate inter-quartile range, quartile deviation and coefficient of quartile deviation from the following data. Marks 12 14 16 18 20 22 24 Number of students 3 4 2 3 4 3 4 Q8. Find out inter-quartile range, quartile deviation and coefficient of quartile deviation from the following information on wages and number of workers. Wages 0-10 10-20 20-30 30-40 40-50 50-60 No. of workers 10 5 5 10 5 15 Q9. Compute Quartile deviation and its coefficient from the following data. X 10-20 20-30 30-40 40-60 60-70 70-80 f 12 19 5 10 9 6 Q10. Calculate mean deviation and its coefficient from the following data. (use mean). X 10 15 20 25 30 F 4 6 8 10 12 Q11. Calculate mean deviation and its coefficient from the following data (use median). X 10 15 20 25 30 f 4 6 8 10 12 Q12. Calculate mean deviation and its co-efficient from the following data using arithmetic mean: X 2 4 6 8 10 12 14 16 f 2 2 4 5 3 2 1 1 Q13. Calculate mean deviation and its coefficient from median. Marks 100-120 120-140 140-160 160-180 180-200 No. of students 4 6 10 8 6 Q14. Calculate mean deviation and its coefficient using (i) Arithmetic mean (ii) Median. X 5-15 15-25 25-35 35-45 45-55 F 5 4 5 4 2 Q15. Calculate standard deviation (use direct method and short cut method) and its coefficient from the following data. X 2 8 10 12 f 1 1 3 5 Q1 Write the answers to following questions: 1. Write about following operators: a. Relational b. Arithmetic c. Logical d. Conditional e. Increment f. Compound assignment MULTIMEDIA WEB TECHNOLOGY 5
2. Explain the purpose of following statements in Javascript a. alert() b. prompt() c. confirm() 3. Explain the two selection statements in Javascript. Also write their syntax 4. What is the purpose of default and break statement in switch case. Explain with the help of an example. 5. Write a Javascript program to accept a number and check if it is divisible by 3 or not. COMPUTER SCIENCE Assignment on functions and arrays 1. Write a c++ program to accept two numbers and print all the prime numbers between the two numbers. 2. Write a function in C++ which accepts an integer array and its size as arguments and replaces elements having even values with its half and elements having odd values with twice its value 3. Write a function in C++, which accepts an integer array and its size as arameters and rearranges the array in reverse. 4. Write a function in C++, which accepts an integer array and its size as arguments and swap the elements of every even location with its following odd location. 5. Write a function in C++ which accepts a 2D array of integers and its size as arguments and displays the elements which lie on diagonals. [Assuming the 2D Array to be a square matrix with odd dimension i.e., 3x3, 5x5,7x7 etc ] 6