HOLIDAY HOME WORK 2016-17

CLASS IX

dkk% 10

xzh"edkyhu vodk’k dk;Z

uksV% lHkh iz’u djuk vfuok;Z gSA

1- y[kuÅ esa pkSjkgksa ij LFkkfir ewfrZ;ksa dk fp= [khap dj mudh fLFfr;ksa dk o.kZu djks fd mudh bl fLFkfr ls vki lger gS dh ughaA vad 10

( ;g dk;Z jpukRed dk;Z dh dk¡ih esa çâÇ ds vUrxZr vk;sxkA)

2- fdlh ,sls O;fDrRo dks pqusa ftudh tUe&Hkwfe Hkkjr ughs Fkh ijUrq mUgksausa viuh deZ&Hkwfe Hkkjr dks cuk;k vkSj ns’k ds fy, egku ;ksxnku fn;kA vad 10

( ;g dk;Z jpukRed dk;Z dh dk¡ih esa ç0 ds vUrxZr vk;sxkA)

HOLIDAY HOME WORK

BIOLOGY

CLASS X

LIFE PROCESSES

Q1. Draw neat labeled diagrams of

a) T.S. of leaf

b) digestive system in human

c) respiratory system in human

d) human heart

e) human excretory system

Q2. Give mind maps of the following systems

a) digestive system

b) respiratory system

c) circulatory system

d) excretory system

OUR ENVIRONMENT

Q1. Name two main biotic factors that affect human environment.

Q2. Why plastic bag is called non-biodegradable whereas paper is not?

Q3. Why decomposers are necessary in environment?

Q4. What do you mean by the terms?

a) Ecological imbalance

b) Biological magnification

c) Trophic levels

d) Food chain

Q5. Give two ways in which biodegradable and non-biodegradable substances

would affect the environment?

Q6. Give an example of a food chain in

a) Grassland ecosystem

b) Desert ecosystem

c) Pond ecosystem

Q7. “Energy flow in a food chain is unidirectional”. Explain.

Q8. Explain the formation of ozone layer and its importance.

Q9. State 10% law.

Q10. What is the significance of recycling of waste material for maintaining

ecological balance?

NOTE:

This has to be done in biology assignment copy.

Students are requested to come prepared with these above mentioned

questions for group discussion after summer vacation.

Holiday Home Work (2016-2017)

Class X

Science

A power point presentation on any topic chosen from

1) CHEMICAL REACTIONS AND EQUATIONS

2) ACIDS, BASES AND SALTS

3) METALS AND NONMETALS

presented in an interesting way as discussed

RUBRICS

Topic chosen

How simple and creative slides are.

Clarity in the presentation made

Timely submission

HOLIDAY HOMEWORK

STUDY HALL GOMTINAGAR

CLASS X 2016-17

1. READ THE NOVEL ‘THE DIARY OF ANNE FRANK” AND ANSWER THE FOLLOWING TWO QUESTIONS:

(a) COMPARE AND CONTRAST THE CHARACTERS OF ANNE AND MARGOT. (120 WORDS)

ANNE FRANK (OVERVIEW)

TEENAGER, LIVELY, BOLD, AGGRESSIVE, SENSITIVE, SHORT-TEMPERED, ORDINARY LOOKING, OFTEN

DEPRESSED, SCHOLASTIC, PROFOUND, GOOD WRITER, KEEN OBSERVER OF LIFE, TRIED TO FIGHT

ANXIETY AND BOREDOM

MARGOT (OVERVIEW)

PRETTY, BRILLIANT, VIRTUOUS, MOTHER’ S FAVOURITE, MODERATE EATING HABITS, SELF CENTERED,

DID DOMESTIC CHORES

(b) MRS. VAN DAN and MR. ALBERT DUSSEL ARE A SOURCE OF MUCH IRRITATION TO OTHERS. IN

WHAT WAYS ARE BOTH THE SAME? (120 WORDS)

MRS. VAN DAN (OVERVIEW)

AN UGLY OLD WOMAN, PETTY MINDED, VAIN .STUPID, QUARRELSOME, A BUTT OF RIDICULE,

SELFISH, MEAN

ALBERT DUSSEL (OVERVIEW)

A JEW, A DENTIST, IN LOVE WITH A CHRISTIAN LADY, SELFISH, TREATED ANNE BADLY, QUARRELSOME,

UNGRATEFUL, SOMETIMES SUFFERED MEMORY LOSS, NO FIXED OPINION

2. YOUR SCHOOL HAD ORGANISED A SEMINAR ON THE IMPORTANCE OF VOCATIONAL EDUCATION.

WRITE A REPORT ABOUT IT FOR THE SCHOOL MAGAZINE. (120 WORDS).

TAKE CUES FROM THE MCB UNIT’ EDUCATION’

VALUE POINTS

1. SEMINAR ON THE IMPORTANCE OF VOCATIONAL EDUCATION

2. DR. URVASHI SAHANI DELIVERED THE KEY NOTE ADDRESS

3. EMPHASISED THE EMPLOYABILITY OF TRAINED AND SKILLED PERSONS

4. ATTENDED BY A LARGE NUMBER OF STUDENTS

3. WRITE A LETTER TO THE EDITOR OF A NATIONAL DAILY ABOUT THE WAY SCIENCE AND

TECHNOLOGY HAS HARMED HUMAN LIFE.TAKE CUES FROM THE MCB UNIT’ SCIENCE’.( 120 WORDS)

VALUE POINTS

1. OVER DEPENDENCE ON MACHINES

2. PHYSICAL HEALTH BADLY AFFECTED

3. NEW WORK CULTURE UPSETS MENTAL BALANCE

4. MORAL DEGRADATION

4. TOURISM IS A FAST GROWING INDUSTRY WHICH CAN ENHANCE THE COUNTRY’ S ECONOMY.

HOWEVER, THE NUMBER OF TOURISTS COMING TO INDIA HAS GONE DOWN DUE TO FEAR OF ATTACKS

ON WOMEN, VIOLENCE AND TERRORISM. TAKING CUES FROM THE MCB UNIT ‘TRAVEL AND TOURISM,’

WRITE AN ARTICLE FOR THE HINDUSTAN TIMES ON HOW TO ATTRACT MORE TOURISTS TO THE

COUNTRY. (120 WORDS)

VALUE POINTS

1. SUBSIDIZED TOUR PACKAGES

2. ADVERTISEMENTS ON TV AND NEWSPAPER

3. MAKING TOURISTS SITES MORE ATTRACTIVE

4. IMPROVEMENT IN LAW AND ORDER, SANITATION

5. ECO TOURISM TO BE PROMOTED

ALL ANSWERS TO BE WRITTEN ON THE PUNCH SHEET ALONG WITH THE QUESTION. DO NOT EXCEED

THE WORD LIMIT.

CLASS – 10 (2016-17)

GEOGRAPHY HOLIDAY HOMEWORK - 1

PROJECT ON DISASTER MANAGEMENT [ FA1 activity]

Submission Day & Date: 1st geography period after your summer vacations

General instructions:

1. The project should be done on the interleaf punch sheets.

2. Supplement the project with the help of pictures, maps, diagrams etc.

3. Be very careful with the clarity, neatness, presentation and completion of your project

work on time, as marks will be given for the same.

TOPIC : DROUGHT / WATER SCARCITY:-

India is a tropical country receiving good amount of rainfall and also has ample ground

water reserve. But still it finds itself in the midst of an acute water crisis as several areas of

the country are facing severe drought like situation.

Now read the given article and answer the following questions :

An architect and urban planner by profession, Anagha Paranjape-Purohit, a resident of Bhusari Colony, Paud

Road,Pune, has been conscious about judicious use and conservation of water for many years. On an individual

level, not only has she been practising rainwater harvesting in her house but has also been adopting new methods to

save water.

Anagha has set up her sink in such a way that it has a tub underneath and therefore, while washing utensils, the

water gets collected in a tub and then that water is used in watering the plants in her garden. Not only this, while

washing clothes, she lets her washing machine outlet rest in a tub and then reuses that water for plants.

Besides, she has her own consulting organisation, VKe Environmental, where they design „green‟ buildings.

Operational since 2009, they have completed numerous residential and commercial building projects where they

have fitted low-water flow fixtures, that can save up to 30-40 per cent water than conventional buildings.

According to Anagha, by taking these small steps at home, she feels good that no water in her house is going waste.

“Watering plants with this water has not disturbed its growth. In fact, the food particles in the water make them

grow even better,” she added.

“It‟s unfortunate that people take up such measures only when a severe drought situation arises. If we follow the

water conservation practices everyday, we will face no water shortage in the country,” she said.

QUESTIONS:

1. Conduct a research on the problem and enumerate some of the causes that have triggered

this crisis.

2. As a sensitive citizens of our country, suggest some steps and measures that can be taken

to solve or minimize this problem.

3. Also suggest some ways in which people can be sensitized on this issue.

Rubric: [Total 10 marks]

1. 2 marks – Presentation, Neatness and Creativity.

2. 2 marks – Completion and submission of work on time.

3. 6 marks – Answers (2 marks for each answer).

Class X

History

Present your ideas on the following:

Would you consider imperialism a consequence of Industrial Revolution?

How far do you think imperialism was responsible for World War I?

If imperialism had not taken place would the history of the world be different?

Note :You are to make use of the following while doing the work and include them in your

presentation:

Maps

Cartoons ( if any )

Statistics ( wherever suitable )

Pictures

STUDY HALL HOLIDAY HOME WORK (2016-17)

CLASS-X (MATHEMATICS-041) (CH-1, REAL NUMBERS)

Q.1.Show that any positive integer is of the form3q or 3q+1 or 3q+2 where q is some integer. Q.2. Show that any odd positive integer is of the form 6q+1 or 6q+2 where q is some integer. Q.3.Use Euclid’s division lemma to show that the cube of any positive integer is of the form

9m,9m+1,9m+8. Q.4.Prove that n2- n is divisible by2 for every positive integer. Q.5.Prove that one of every three consecutive positive integer is divisible by 3. Q.6.Using Euclid’s division algorithm finds the HCF of 21658 and 8624 Q.7.Find the largest number that will divide 699, 572, and 445 leaving remainder 6, 5 and 4

respectively. Q.8. Prove that one of every three consecutive positive integer is divisible by 2. Q.9.Given that HCF (306,657) = 9, find their LCM. Q10.Find the greatest number of five digits which is exactly divisible by 24, 15 and 36. Q.11.Determine the smallest number which when increased by 27 is exactly divisible by 660 and

594.

Q.12.Prove that 2 / 3 / 5 / 7 are irrational number.

Q.13.Prove that 3 + 5 is irrational number. Q.14.Write down the decimal expansion of the following (a) 127/500 (b) 13/80 (c) 16584/ 625 Q.15.Find the value of 5/7 if 3/7 = 0.428571 Q.16.Find the value of m if the HCF of 65 and 117 is expressible in the form 65m-117

(CH-2, POLYNOMIALS)

Q.1 Find the zeroes of the polynomial f(x) = 3 x2 + 10 x +7 3, and verify the relationship between the zeroes and the coefficient

Q.2 Find the zeroes of the polynomial f(x) = ax2 - (a2+1) x + a, and verify the relationship between the zeroes and the coefficient

Q.3 If p and q are the zeroes of the polynomial f(x) = x2-8x +k, such that p2+ q2 = 40, find the value of k.

Q.4 If p and q are the zeroes of the polynomial f(x) = x2-k(x+1) -a, find the value of (p+1) (q+1) Q.5 If the product of the zeroes of the polynomial ax2-6x-6 is 4 find the value of a Q.6 If the sum of the zeroes of the polynomial kx2+ 2x +3k is equal to their product, find the

value of k

Q.7 If p and q are the zeroes of the polynomial f(x) = 4x2-4x +1, find the value of 𝑝

𝑞+

𝑞

𝑝

Q.8 If p and q are the zeroes of the polynomial x2-x -2, find the polynomial whose zeroes are (1+2p) and (1+2q)

Q.9 If n-k is a factor of the polynomials x2+px +q and x2+mx+n, prove that k = n + 𝑛−𝑘

𝑚−𝑝

Q.10 Find the zeroes of the polynomial x3+4x2-9x-36, if two of its zeroes are equal in magnitude but opposite in sign

Q.11 Find the zeroes of the polynomial x3-13x2+32x-60, if it is given that the product of its two zeroes is 10.

Q.12 If the zeroes of the cubic polynomial ax3 + 3bx2 + 3cx + d are in A P, then prove that 2b3-3abc + a2d =0 [If a,b and c are in AP ,then b = (a+c) / 2] Q.13 Given that the zeroes of the cubic polynomial x3-6x2 +3x +10 are of the form a, a+b, a+2b

for some real number a and b ,find the value of a and b as well as the zeroes of the polynomial.

Q.14 Find the zeroes of the polynomial f(x) = x3 - 9x2 + 26x - 24, if it is given that the product of its two zeroes is 8

Q.15 If the zeroes of the polynomial x3-3x2+ x + 1 are a-b, a, a+b, find a and b.

(PAIR OF LINEAR EQUATIONS IN TWO VARIABLES) (SOLVE GRAPHICALLY)

Q.1 Two rails are algebraically represented by the equations 3x - 5y -20 = 0 and 6x - 10y + 40=0, Represent the situation graphically

(From the given pair of linear equations in the following, find the solution graphically) Q.2 x + 2y = 1300 and 3x + 6y=3900 Q.3 x - 7y + 42 = 0 and x - 3y – 6 = 0 Q.4 2x + 4y = 10 and 3x + 6y = 12 Q.5 x + y = 10 and x - y = 4 Q.6 3x + y + 5 = 0 and 2x+5y = 1 Q.7 x = y and 2x + 3y = 10 Q.8 Determine graphically the vertices of the triangle, the equations of whose sides are 5y - x = 7, 3y-5x = - 9 and y+2x = - 3 Q.9 Determine graphically the vertices of the triangle formed by these lines and the x axis;-

x – y + 1 = 0 and 3x + 2y – 12 = 0 Q.10 Determine graphically the vertices of the rectangle, the equations of whose sides are

x=0,y=0,x=4 and y=3. Q.11 Determine graphically the vertices of the square, the equation of whose sides are; x = 0, x =

7, y = 0 and y = 7 Q.12 Determine graphically the vertices of a trapezium, the equation of whose sides are x = 2, y

= 0, 5x + y = 45 and y = 10 Q.13 Solve the following system of linear equations graphically; x + y = 4 and 3x - 2y = - 3 and

shade the region bounded by these lines and x-axis

(SOLVE BY SUBSTTUTION, ELIMINATION AND BY CROSS MULTIPLICATION METHOD)

Q.1 (a) x + y = 4 & x - y = 4 (b ) x + y = a - b & ax – by = a 2 + b2

Q.2 (a) x + y = 2m & mx – ny = m2 + n2 (b) x/a + y/b = 2 & ax – by = a 2- b2

Q.3 (a) bx/a + ay/b = a2 + b2 & x + y = 2ab (b) 3x /2 - 5y/3 = - 3 & x/3 + y/2 = 13 /6

Q.4 (a) 2(ax-by) + (a+4b) = 0 & 2(bx+ay) + (b-4a )= 0 (b) 3a/ x - 2b/y = - 5 & a/x + 3b/y = 2

Q.5 (a) a/x - b/y = 0 & ab2/x + a2b/y = a 2+b2 (b) x + y = 2xy & x – y = 6xy

Q.6 (a ) (2x+5y)/xy = 6 & ( 4x-5y) /xy = - 3 (b) 5/(x-1) + 1/ (y-2) =2 & 6/(x-1) - 3/(y-2) = 1

Q.7 (a) 44/ (x+y) + 30 /(x-y) = 10 & 55/ (x+y) + 40 /(x-y ) = 13

Q.8 (a) 99x + 101y = 499 & 101x +99y = 501 (b) 217x + 131y = 913 & 131x + 217 y = 827

Q.9 (a)(a-b)x + (a+b)y = a2 - 2ab - b2 & (a+b) (x+y) = a2+b2 (b) ax + by = c & bx + ay = 1+c

Q.10 (a) bx + ay = 2ab/(a2+b2) & ax + by = 1 (b) px + qy = p-q & qx - py = p+q

[Type the document title] [Year]

HOME ASSIGNMENT:ELECTRICITY CLASS:X (HOLIDAY HOMEWORK)

05 MAY

SECTION-A[EACH CARRYING 1 MARK]

1. Two resistors of 5Ω & 10Ω are connected in series in a circuit. How does the current passing through

them compare?

2. A wire of resistance 10Ω is bent to form a closed circle. What is the resistance across a diameter of

the circle?

3. How can you make a constant current supply in an electrical circuit?

4. What type of charge carriers are used in a metallic conductor?

5. How resistivity of a semiconductor & conductor depends on temperature?

6. Calculate the current in a wire if 900C of charge passes through it in 10mins. Ans:1.5A

7. How many electrons are required to get a charge of 4C?

8. A particle with a charge of 1.5C is taken from a point A at a potential of 50V to another point B at a

potential of 120V. Calculate the work done.

SECTION-B[EACH CARRYING 2 MARKS]

9. Why is tungsten not used as a fuse wire?

10. Alloys are preferred over metals for making the heating element of heaters. Why?

11. When do we say that resistance of a wire is 1Ω?

12. Calculate the resistance of copper wire of length 1m and area of cross section 2mm2. Resistivity of

copper is 1.7 x 10-8Ω. Ans: 8.5 x 10-3Ω

13. Two wires A and B are of the same metal have the same area of cross–sectional area and have their lengths in the ratio 2:1. What will be the ratio of currents flowing through them respectively when the same potential difference is applied across length of each of them?

14. A small heating element, connected to a 10V. d.c. supply draws a current of 5A. how much electric power is supplied to the heater? 15. Explain joules law of heating effect & give its two applications. 16. How will the resistance of a wire change if its diameter is doubled, its length remaining the same?

SECTION-C[EACH CARRYING 3 MARKS]

17. A nichrome wire has a resistance of 5Ω. Find the resistance of another Nichrome wire, whose length is four times and area of cross section is three times the first wire. 18. Three identical bulbs are connected in parallel with a battery. The current drawn from the battery is 6A. If one of the bulbs get fused, what will be the total current drawn from the battery? Ans: 4A 19. A uniform Wire of resistance R is cut into three equal pieces, & these pieces are joined in parallel. What is the resistance of the combination? 20. Three resistors of resistances 10Ω, 20Ω & 30Ω are connected in parallel with a 6V cell. Find a) the current through each resistor, b) the current supplied by the cell, and c) the equivalent resistance of the circuit. 21. A bulb is rated 60W, 240V. Calculate its resistance when it is on. If the voltage drops to 192V, what will be the power consumed & the current drawn? 22. How will you join the resistors of resistances 3Ω, 6Ω & 8Ω to get an equivalent resistance of 10Ω?

23. A copper wire has a diameter of 0.5 mm and resistivity of 1.6 x 10 m.

a. What will be the length of this wire to make its resistance 10 2ohm?

b. How much does the resistance change if the diameter is doubled?

24. How does the resistance of a wire change when

c. Its length is tripled?

d. Its diameter is tripled?

e. Its material is changed to one whose resistivity is three times?

25. Define the term resistivity of a material.

A cylinder of a material is 10cm long and has a cross-sectional area of 2cm2. If its resistance

along the length be 20Ω. Calculate the resistivity.

26. Explain the principle & working of electric bulb.

SECTION-D[EACH CARRYING 5 MARKS]

27. You are given following current-time graphs from two different sources:

(i) Name the type of current in two cases.

(ii) Identify any one source for each type of these currents.

(iii) What is the frequency of current in case II in India?

(iv) Use above graphs to write two differences between the current in two cases.

28. Calculate the amount of electrical energy consumption for a month of 30days in a household of 220V line with the following appliances being used:

I. Five 60W bulbs for 6hrs II. Two 1000W heaters for 2hrs

III. 750W electric iron for 2hrs IV. 100W refrigerator for 24hrs, and V. 1100W microwave oven for 3hrs.

29. A refrigerator having a power rating of 350watt operates for 10hours a day. Calculate the cost

of electrical energy to operate it for a month of 30days. The rate of electrical energy is Rs.2.40 per

unit.

30. In the circuit shown below calculate the total resistance of the circuit & the current flowing through it.

24V

A write up on Women‟s Bill.

Reasons for it not being passed in the Parliament .

View of students on equal representation.

5Ω 20Ω

15Ω 10Ω

SUBMISSION DATE: 01.07.16 PHYSICS PROJECT

DATE:01.05.16 CLASS:X 1. Electro magnet-------------- Written project work along with the working model of Magnetic Crane. 2.Classification of different substances as Conductors, Insulators &Semiconductors.

Introduction Comparative study Applications (uses) Nature of V-I Graph

attach one type of each substances along with your project. 3. Electric Motor Introduction Principle and working Working model[Any device which works on the principle of electric motor]

4.Any working model related to electricity. NOTE: FOR QUERIES CONTACT: ANANT SIR-7376250178, ANAS SIR- 8417914179

SUBMISSION DATE: 01.07.16 PHYSICS PROJECT

DATE:01.05.13 CLASS:X 1. Electro magnet-------------- Written project work along with the working model of Magnetic Crane. 2.Classification of different substances as Conductors, Insulators &Semiconductors.

Introduction Comparative study Applications (uses) Nature of V-I Graph

attach one type of each substances along with your project. 3. Electric Motor Introduction Principle and working Working model[Any device which works on the principle of electric motor]

4.Any working model related to electricity. NOTE: FOR QUERIES CONTACT: ANANT SIR-7376250178, ANAS SIR- 8417914179