KENDRIYA VIDYALAYA No. 2, Delhi Cantt.–10 SUMMER BREAK HOLIDAYS HOMEWORK: 2016-17

SHIFT I CLASS – X ENGLISH

1. Read any novel of your choice and write a detailed book review.

2. Read story of my life – helen keller chapters 1-10 and write

chapter wise summary. Write two long answers type questions

from each chapter with answers.

3. Learn and practice the syllabus completed till date.

4. Read and compile any five poems by your favourite poet. Write

short critical appreciation for each poem.

HINDI

MATHS

QUES 1. Using Euclid’s division algorithm find whether the HCF of 847 and 2160 is co-prime or not.

QUES 2. Show that the Square of an odd-positive integer can be of the form 6q+1 or 6q+3 for some integer q.

QUES 3. Which of the following is not the graph of a quadratic polynomial?

A)

B) C) D)

QUES 4. Can (x-1) be the remainder on the division of a polynomial p(x) by 2x+3? Justify your answer.

QUES 5. Find a quadratic polynomial, the sum and product of whose zeroes are and -3/2.Also find its zeroes.

QUES 6. If a pair of linear equations is consistent then the lines will be….

a) Parallel b) Always coincident c) Intersecting or coincident d) Always intersecting

QUES 7. Is it true to say that the pair of equations?

-x+2y+2=0 and 1/2x-1/4y-1=0

Has a unique solution? Justify your answer.

QUES 8. Solve the following:-

5/x-1 + 1/y-2 =2

6/x-1 - 3/y-2 =1

SCIENCE Q. 1. Why is Tungsten metal selected for making filaments of incandescent lamp bulbs?

Q. 2. A torch bulb is rated at 3V and 600mA. Calculate it’s a) Power b) Resistance c) Energy

consumed if it is lighted for 4 Hrs.

Q. 3. Which will offer more resistance a 50W lamp or 25W lamp bulb and how many times?

Q. 4. Should the heating element of an electric iron be made of iron, silver or Nicrome wire?

Why

Q. 5. Two identical resistors each of resistance 10 ohm are connected 1) in series 2) in

parallel, in line to a battery of 6volts. Calculate the ratio of power consumed in the

combination of resistors in the two case

Q. 6. A bulb is rated at 220V- 100W. What is its resistance? Five such bulbs burn for 4 hrs.

What is the energy consumed? Calculate the cost if the rate is 50paise per unit?

Q7. How does water rise in tall trees?

Q8 Leaves of a potted plant are coated with Vaseline to block the stomata. Will this

plant remain healthy for long? State the 3 reasons for your answer.

Q9 What are the advantages of having very thin and highly branched capillaries for

blood flow?

Q10 Correct the false statement

a) The walls of the atrium are thicker than the ventricles

b) The oxygen carrying blood goes into the left auricle

c) Valves open on both the sides.

d) Xylem transports food material.

e) The blood circulation in man is of open type in man

Q11. Make a list of at least 10 cations and 10 anions.

Q12. Taking help from the list prepared in Q4,, write the chemical formulae of:-

(i) Barium chloride (ii) Sodium Sulphate (iii) Ammonium phosphate (iv)

Calcium hydroxide

(v) Aluminium carbonate (vi) Magnesium hydrogen carbonate (vii) Zinc sulphide

(viii) copper (׀) chloride (ix) Potassium Bromide (x) Lead nitrate (xi) Iron ( ׀׀׀) oxide (xii)

Sodium Oxide (xiii) Silver sulphide (xiv) Calcium Fluoride

Q13.. Write the following in the form of balanced chemical equations:-

(a) Calcium carbonate decomposes on heating to form calcium oxide and carbon – di –

oxide.

(b) When ammonium hydroxide is added to a solvent of iron (ll) Sulphate, a green ppt of

iron (ll) hydroxide and ammonium Sulphate are formed.

(c) When a nail of iron is added to a solution of copper Sulphate, iron (ll) Sulphate and

copper metal are formed.

SOCIAL SCIENCE

1. Prepare 10 MCQ’S from each chapter i.e. ch-1 geography, ch-1 civics, ch-1 eco,

ch-4 history in file.

2. Do all the maps from ch-1 to ch-5 of geography in file.

3. Learn the syllabus of F.A-1.

4. PROJECT WORK;-

(a) Write in brief about the achievements of India in space after independence.

OR

(b) Collect the information about Augusta helicopter deal and compare with its

contemporary helicopters. (do in scrap file)

COMPUTER Ques 1) Write with its description & also draw on A4 / A3 Sheet on latest

technologies used to transfer data.

QUES 2)Make a poster of cyber bullying on A3 sheet.

QUES 3) Write the HTML Code to produce the following web page:-