Grade XI SCIENCE - Holiday Homework & Worksheets

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ACADEMIC SESSION 2015 – 2016

CLASS –XI,CHEMISTRY

ORGANIC CHEMISTRY

Student’s Name: Date : 24.4.15

Q.1) Prepare concept mapping from the below mentioned chapters using innovative methods of

representation.

UnitNo. Title

UnitI SomeBasicConceptsofChemistry

UnitII StructureofAtom

UnitIII ClassificationofElementsandPeriodicityinProperties

UnitIV ChemicalBondingandMolecularStructure

UnitV StatesofMatter:GasesandLiquids

UnitVI ChemicalThermodynamics

UnitVII Equilibrium

UnitVIII RedoxReactions

UnitIX Hydrogen

UnitX s-BlockElements

UnitXI Somep-BlockElements

UnitXII OrganicChemistry:SomebasicPrinciplesandTechniques

UnitXIII Hydrocarbons

NOTE: SEPARATE CONCEPT MAPPING TO BE DRAWN IN A4 SIZE SHEETS..





CLASS –XI,CHEMISTRY

PART-1

WORKSHEET


Q.1) Using INDEX behind NCERT TEXT BOOK list out the definitions in your class work of the below

mentioned chapters.

UnitNo. Title

UnitI SomeBasicConceptsofChemistry

UnitII StructureofAtom

UnitIII ClassificationofElementsandPeriodicityinProperties

UnitIV ChemicalBondingandMolecularStructure

UnitV StatesofMatter:GasesandLiquids

NOTE : Refer to NCERT TEXT BOOK for the definitions.




ACADEMIC SESSION 2015 – 2016CLASS –XI , MATHEMATICS

RELATIONS AND FUNCTIONSStudent’s Name: Date : 25.4.15

1. If A X B = { (a,1), (a,5), (a,2), (b,2), (b,5), (b,1) } find A , B and B X A.

2. If A = {1,4}, B = {2,3,6} and C = {2,3,7}, then verify that: i) A X (BUC) =(AXB)U(AXC)

ii) A X (B∩C) = (AXB)∩(AXC) iii) A X (B-C) = (AXB)-(AXC)

3. Find a and b if f(x)= ax + b and f(2) = 8, f(3) = 11

4. If A = {-1, 1}, form the set A x A x A.

5. If A = { 1, 2, 3, 4} and x, y ÎA, form the set of all ordered pairs (x, y) such that x is a divisor of y.

6. Let A = ( 1, 2, 3, 4, …, 14).Define a relation R from A to A byR = { (x, y) : 3x –y = 0, x, y € A }.(i) Write R in roster form.(ii) Write its domain, co-domain and range,(iii) Depict this relationship by an arrow diagram.

7. Determine the domain and range of the relation R defined byR = {( x, x + 5) : x ={0, 1, 2, 3, 4, 5}}.

8. The function ‘t’, which maps temperature in celsius into temperature in Fahrenheit is defined by

325

9)(

cct , find:

(a) t(0)(b) t(28)(c) t(-10)(d) the value of c when t(c) = 212.

9. Find the domain and range of the following functions:(a) f(x) = √ − (b)

10. Find the range of the following function: .)1)(32(

1)(

x x x f

11. Let R Rg f :, be defined respectively by : .32)(,1)( x xg x x f Find f + g, f – g and f/g.





CLASS –XI , MATHEMATICSSETS

Student’s Name: Date :25.4.15

1. From the Venn diagram shown below, find the following sets.

(i) P

(ii) Q

(iii) R

(iv) U

(v) Q R

(vi) P Q

(vii ) P – Q

(vii i) P – R

(ix) R – Q

(x) P R

2. Let U {x : x N, 4 x 20}, A = {even number}, B = {multip le of 3} and C = {factors of 30}.

Find (i) A B (ii) B C (iii) C A . Also show the relationships between the given sets by aVenn diagram.

3. In a class of 60 students, 40 students like Maths, 36 like Science and 24 students like boththe subjects.

Draw a Venn diagram and find the number of students who like:

(i) Maths only

(ii) Science only

(iii) Either Maths or Science

(iv) Neither Maths nor Science.




4. If A = {1, 2, 3}, B = {4, 5, 6}, C = {7, 8, 9}, verify that

a. A (B C) (A B) (A C)

b. A (B C) (A B) (A C)

5. If A = {1, 2, 3, 4, 5}, B = {1, 3, 5, 7, 9}, C = {2, 3, 4}, veri fy that

(i) A

(B

C)

(A

B)

(A

C)

(ii) A (B C) (A B) (A C)

6. From the Venn diagram shown below, find the following sets.

(i) U

(ii) A B

(iii) A B C

(iv) B – C

(v) C – B

(vi) A B C

7. In a group of 50 students, 28 students had apple juice and 32 had mango juice. All thestudents had at

least one soft drink. Draw a Venn diagram and find how many students had

(i) both apple juice and mango juice

(ii) only apple juice

(iii) only mango juice

8. Let U {x : x N, x 21} , A = {mult iples of 3}, B = {primenumbers}andC={factor of 42}.

Draw a Venn diagram to show the relationship between the given sets and also find thefollowing sets.

(i) B C

(ii) C A

(iii) A C

(iv) B C

(v) A (B C)




(vi) A (B C)

(vii) (A B) (A C)

Technologies (P) L




CLASS – XI, PHYSICSPHYSICAL WORLD AND MEASUREMENT

Student’s Name: Date:

ANSWER ALL THE QUESTIONS IN YOUR CLASS WORK.

1. How many light years make 1 parsec?

2. How much are a nanometer, a light year and an angstrom?

3. Are there more nanoseconds in a second than number of seconds in a year?

4. The average wavelength of yellow light emitted from a sodium lamp is 5893 A0. Express it in nm.

5. The parallax angle of a planet on two places of earth is 20 seconds. If the two places are situated

diametrically on the equator, find the distance of the planet from earth. Radius of earth is 6400 km.

6. Suggest a distance corresponding to each of the following orders of length (i) 10 7m (ii) 104of em (iii) 103m

(iv) 102m (v) 10-3m (vi) 10-6m (vii) 10-14m

7. Derive the dimensions of the following quantities with the help of the formula given.

Area = length x breadth

Density = mass/ volume

Speed = distance / time

Acceleration = velocity / time

Pressure = force/area

Torque = force x distance8. Check the dimensional consistency of the following relation:

FS = ½ mv2 – ½ mu2

Here F = force, S = distance, m = mass, u = initial velocity, v = final velocity.

9. The equation of a wave is given by

Y = rsinω( x/v - kπ) where the symbols have their usual meanings. What are the dimensions of x and k?

10. The density of earth is given by

Ρ = 3g/ 4πRG

Where R is the radius of earth and G is gravitational constant. Check the dimensional consistency of this

relation.

11. Assuming that the period of vibration of a tuning fork depends upon the length of the prongs and on the

density and Young’s modulus of the material, use the dimensional analysis to obtain the time period of

vibration.

12. Assuming that the mass (m) of the largest stone that can be moved by a flowing river depends only upon

the velocity v, the density ρ of water and the acceleration due to gravity g. Show that m varies with thesixth power of the velocity of the flow.

13. The time of oscillation (t) of a small drop of liquid under surface tension depends upon the density,

radius and surface tension σ. Prove dimensionally that t = √ρr 2/σ.

14. What are the dimensions of angular displacement?

15. Prove that energy density and pressure have the same dimensions.

16. Give the dimensions of latent heat, angular momentum, resistivity, capacitance and inductance.

17. Calculate the dimensions of universal gravitational constant.



18. What is the number of significant figures in the following expressions?

173.2 205 4000 0.025

Perform the indicated operations to correct significant figures:

(i) 3.2 + 14.235 (ii) 27.482 – 27.4 (iii) 3.437 x 12 (iv) 105/ 5.5

19. Calculate the volume of a cylinder with a diameter of 9.9 cm and a height of 13.5 cm.

20. 5.74 g of the substance occupies 1.2 cc. Find the density of the substance to correct significant figures.

21. Perform the following operation to correct significant figures:

6.8 x 104 s + 3.1 x 105 s

22. The length, breadth and thickness of a metal sheet are 4.234m, 1.005m and 2.01 cm respectively. Give

the area and volume of the sheet to correct significant figures.

23. The mass of a box measured by a grocer’s balance is 2.300 kg. Two gold pieces of masses 20.15 g and

20.17 g are added to the box. What is the total mass of the box and the difference in the masses of the

pieces to correct significant figures?

24. State the number of significant figures in the following:

0.007 2.64 x 1024

0.2370 6.320

6.032 0.0006032

25. Suggest a distance corresponding to each of the following orders of length.

107

104

103

102

10-3

10-6

10-14

10-15

10-10

10-6

10-2

10-12




CLASS – XI, PSYCHOLOGYIntroduction to Psychology

Student’s Name: Date :24.4.15

Q1. Define the followinga. Health Psychology

b. Clinical Psychology

c. Educational Psychology

Q2. Explain the theme “ Human behaviour is a function of the attributes of persons and

environment”.

Q3. What is criminology?



Q4. What is the difference between basic verses applied psychology

Q5. What are the functions of an industrial psychologist?

Q6. Explain how behaviour is caused.



ACADEMIC SESSION 2015 – 2016CLASS – XI, PSYCHOLOGY

Introduction to PsychologyStudent’s Name: Date :24.4.15

Q1. What are mental processes?

Q2. Why is Psychology defined as a social science?

Q3. Explain introspection.

Q4. What is cognition? How to cognitive psychologist explain human behaviour?



Q5. What are the main components of behaviourism and structuralism?

Q6. Discuss the following:a. Neuropsychology

b. Developmental Psychology



ACADEMIC SESSION 2015 – 2016CLASS – XI, PHYSICS

PHYSICAL WORLD AND MEASUREMENTStudent’s Name: Date:

ANSWER ALL THE QUESTIONS IN YOUR CLASS WORK.

1. The time of oscillation (t) of a small drop of liquid under surface tension depends upon the density,

radius and surface tension σ. Prove dimensionally that t = √ρr 2/σ.

2. What are the dimensions of angular displacement?

3. Prove that energy density and pressure have the same dimensions.

4. Give the dimensions of latent heat, angular momentum, resistivity, capacitance and inductance.5. Calculate the dimensions of universal gravitational constant.

6. What is the number of significant figures in the following expressions?

173.2 205 4000 0.025

Perform the indicated operations to correct significant figures:

(i) 3.2 + 14.235 (ii) 27.482 – 27.4 (iii) 3.437 x 12 (iv) 105/ 5.5

7. Calculate the volume of a cylinder with a diameter of 9.9 cm and a height of 13.5 cm.

8. 5.74 g of the substance occupies 1.2 cc. Find the density of the substance to correct significant figures.

9. Perform the following operation to correct significant figures:

6.8 x 104 s + 3.1 x 105 s

10. The length, breadth and thickness of a metal sheet are 4.234m, 1.005m and 2.01 cm respectively. Give

the area and volume of the sheet to correct significant figures.

11. The mass of a box measured by a grocer’s balance is 2.300 kg. Two gold pieces of masses 20.15 g and

20.17 g are added to the box. What is the total mass of the box and the difference in the masses of the

pieces to correct significant figures?

12. State the number of significant figures in the following:

0.007 2.64 x 1024

0.2370 6.320

6.032 0.0006032

25. Suggest a distance corresponding to each of the following orders of length.

107 104

103 102

10-3 10-6

10-14 10-15



ACADEMIC SESSION 2015 – 2016CLASS – XI , CHEMISTRY

BOARD PROJECTStudent’s Name: Date :24.4.15

PROJECT

Scientificinvestigationsinvolvinglaboratorytestingandcollectinginformationfromothersou

rces.AfewsuggestedProjects

●

Checkingthebacterialcontaminationindrinkingwaterbytestingsulphideion.

●

Studyofthemethodsofpurificationofwater.● Testingthehardness,presenceofIron,Fluoride,Chloride,etc.,dependinguponther

egionalvariationindrinkingwaterandstudyofcausesofpresenceoftheseionsabov

epermissiblelimit(ifany).

●

Investigationofthefoamingcapacityofdifferentwashingsoapsandtheeffectofad

ditionofSodiumCarbonateonit.

●

Studytheacidityofdifferentsamplesoftealeaves.

● Determinationoftherateofevaporationofdifferentliquids.

●

Studytheeffectofacidsandbasesonthetensilestrengthoffibers.

● Studyofacidityoffruitandvegetablejuices.

CRITERIA FOR PRESENTATION

Headings to be bold Project to be made in A4 Size sheets. Sub headings to be clearly demarcated. Content to be hand written. Pictures collected for the project to be coloured .






CLASS – XI , CHEMISTRYBASIC CONCEPTS OF CHEMISTRY


Q11 A fluorideofoxygenwaspreparedbymixingoxygenandfluorineintheproper

ratioat60K.Thiscompoundcontains32.1 % F and67.9 % O.Whatisthe

empiricalformulaofthecompound ? 2M

Q12.

Q13.

Calculate thepercentageofwater ofcrystallizationinCuSO4.5H2O.

Calculatethemolarityof a solutionofethanolinwaterinwhichthemole

2M

Fractionofethanolis0.040. 2M

Q14. Definethefollowing (i)Molarity (ii)Molality (iii)Molefraction 3M

Q15. Stateandexplainthefollowinglaws:

(i) Law of multiple proportions (iii) Avogadro’s law

(ii) GayLussac’slawofcombiningVolumes 3MQ16.

(a)Howmanysignificantfiguresaretherein (i)202.50 (ii) 9.78 x 10-24

(iii) 29.6 ?

(b)Roundoffthefollowinginto threesignificantfigures:(i)5.685

(ii)0.9865 (iii)8.5236

Q.17. Calculate(i)themolalityofthe solution(ii)themolefractionofsugar. 3M

(ii) Calculatethenumberofatomsineachofthefollowing: (a) 3.2 g of sulphur (b) 0.5 mole atomsofnitrogen.




CLASS – XI, ENGLISHHOLIDAY HOMEWORK – BOOK REVIEW


Read carefully The Canterville Ghostby Oscar Wilde. Then write a review of the book.

Required Elements for Book Review :--

1. Author - Last Name First Title - Underlined2. Illustrator - Last name first, Copyright Date, Number of Pages

3. Description/Genre - Brief Description of the type of book, ie. Picture Book, Fiction, Nonfiction, Mystery,Fantasy, Biography, Poetry, etc.

4. Review - In as few words as possible, write an evaluative summary including qualifiers such as excellent,humorous, poignant, well researched, etc. Tell what is great about the book. Your review should inspire others to

want to read the book.5. Suggestions for Classroom Use/ Curriculum Connections - Write all the possible curriculum areas to whic

this book relates. Tell how this book could be used with students.6. Awards - If you are aware of any awards the book has won, list them here. If not, omit this category. If the

book has received any awards, doing a Google search for the title plus the word awards, will often provide youwith the information you need.

7. Recommended Grade Level(s) - Although most books are suitable for more than one grade level, we need to

know where we should post your review. Be specific when you write the grade level. You could say, for examplGrade II, but also appropriate for grades I and III.8. Reviewed by - Your Name, School, Position, Date (M/Y)

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Grade XI SCIENCE - Holiday Homework & Worksheets