Guru Gobind Singh Public School Sector :V/B,B.S.City

Holiday Assignment 2017 – 18 Std:9 Subject: English

1. Draft a poster creating awareness among the people regarding ‘Adult

Literacy’.

2. Prepare a collage on ‘Environmental Pollution’.

3. Prepare a project on life history and achievements of ‘Robert Frost’.

4. Write a diary entry describing your experience of visit to on old age

home.

5. Write an article in about 150 words on the topic ‘Each one Teach one’.

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Guru Gobind Singh Public School Sector :V/B,B.S.City

Holiday Assignment 2017 – 18

Std:9 Subject: Mathematics 1. Represent 5.10 & 4.9 on the real number line.

2. Find the value of 22.023.0 +

3. Express I the form p/q (i) 1614.0 (ii) 65.0

4. Simplify :

(a) ( )

42

639

−

−n

n

a

a (b)

( ) 132

21

2555

525255++

+

−×

×−×nn

nn

(c) nnn

nn

5259

56513

×−×

×−++

(d) ( ) ( )2

3

4256

−

−

5. If 23

23

+

−=x &

23

23

−

+=y , find the value of x2 + y2 + xy.

6. If 52

52

+

−=x &

52

52

−

+=y , find the value of x2 – y2

7. Simplify :

(a) 26

34

23

6

632

6

−−

++

− (b)

26

34

26

32

36

23

−−

++

−

8. Show that : 525

1

56

1

67

1

78

1

83

1=

−+

−−

−+

−−

−

9. If x= ,qpqp

qpqp

−−+

−++then find the value of qx2 – 2px + q.

10. Show that xy

yx

x

yx

x

yx 22

1

11

1

11+

=−

++

−

−−

−

−−

11. If 2a = 3b = 6c then show that ba

abc

+=

12. If x = 232 + then find the value of

+

xx

14

13. Find the value of a & b in each of the following:

(a) 3347

325ba −=

+

+ (b) 6

3223

32ba −=

−

+

14. If 32 +=a ,then find the value of a

a1

−

15. Simplify: (i) ( ) 2

1

333321 ++ (ii)

6124

5

32

5

8

5

3

−

(iii)

×

×−

−

3

2

6

1

2

1

3

1

33

279

(iv) 3

1

3

1

3

1

32

168−

× (v) 3

2

3

1

3

1

6464.64 −

−

16. Find the value of

( ) 5

2

216

4−

+

( ) 4

3

256

1−

+

( ) 3

1

243

2−

17. Find the value of x, if 5 x – 3. 32x – 8 = 225 18. By Remainder theorem find the remainder when p(x) is divided by g(x) & where

(i) p(x) = x3 – 6x2 + 2x – 4 , g(x) = x2

31−

(ii) p(x) = 4x3 – 12x2 + 14x – 3 , g(x) = 2x – 1 19. (a) Show that p – 1 is a factor of p10 – 1 & also of p10 – 1

(b) Find the value of a when the polynomial p(x) = x4 – 2x3 + 3x2 – ax + 3a – 7 when divided by x + 1 leaves the reminder 19..Also find the remainder when p(x) is divided by x + 2 . (c) If the polynomial az3 + 4z2 + 3z – 4 & z3 – 4z + a leave the same remainder when divided by z – 3, find the value of a

20. Factories: (a) 2x2 – 7x – 15 (b) 84 – 2r – 2r2

(c) x3 – 6x2 + 11x – 6 (d)

22

2

1

3

12

−−

+ xx

(e) 16x2 + 4y2 + 9z2 – 16xy – 12yz + 24xz (f) 8p3 + 125

1

25

6

5

12 2++ pp

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Guru Gobind Singh Public School

Sector :V/B,B.S.City Holiday Assignment 2017 – 18

Std:9 Subject: Science Physics

1. Differentiate between speed and velocity 2. Write the formula of acceleration and also write SI and CGS unit. 3. Show a graph of :

(a) Uniform speed (b) Non uniform Speed (c) Uniform acceleration (d) Non uniform acceleration (By using graph paper)

4. In hare – Tortoise race, a hare ran for 4min. at the speed of 7.5km/h and slept for 52min. Again he ran for 4min at the speed of 7.5km/h. Find the average speed.

5. Derive second equation of motion Chemistry

1. Design, an experiment to show that ammonium chloride undergoes sublimation. 2. Liquids generally have lower density as compared to solids .But you must have

observed that ice floats on water. Why? 3. What is the physical state of water at:

(a) 250C (b) O0C (c) 1000C 4. A diver is able to cut through water in a swimming pool, explain. 5. Prepare a model for demonstration of the movement of particles in solid, liquid

and gas. 6. How does evaporation differ form boiling 7. How does the water kept in an earthen pot (Matka) become cool during summer? 8. Why are gases compressible but not liquids? 9. Comment on the following statements:

(a) Sponge though compressible is a solid. (b) Sugar crystals dissolve faster in hot water than cold water. Biology

1. Compare the use of manure and fertilizers in maintaining soil fertility. 2. Why should preventive measures and biological control methods be preferred for

protecting crops? 3. What are the desirable agronomic characteristics for crop improvement ? 4. Visit an agricultural shop in your area, collect information on the availability of

different varieties of seeds of food groceries, pesticides, weedicides and fertilizers which are available at the shop. What are the advantages and disadvantages of using pesticides, weedicides and fertilizers?

5. What are the advantages of mixed cropping? 6. How do abiotic and biotic factors affect crop production? 7. If there is low rainfall in a village throughout the year, what measures will you

suggest to the farmers for better cropping? (List at least four measures) 8. What are pathogens? Name one plant disease each caused by bacteria and

virus respectively.

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Guru Gobind Singh Public School Sector :V/B,B.S.City

Holiday Assignment 2017 – 18

Std:9 Subject: Social Science Assignment History

1. Album on :

(a) The Philosophers of Revolution in France.

(b) The Events of the Revolution: Self drawn or photocopies with relevant

foot notes.

2. Time – line chart on the events of the France Revolution.

3. Draw/Paste and describe the political symbols of France which stand for

liberty equality and Fraternity.

Civics 4. Draw /paste and describe the cartoon given on page 25,26 and page 27.

5. Write the merits and demerits of democracy .

Economics 6. Draw the graph given in page 3.

7. What are the non – farm production activities taking place in your region?

Make a short list.

Note: Learn and Revise C.W

Geography 8. Prepare a project on Himalayan Tsunami.(any one case study)

9. Find out the longitudinal and latitudinal extent of your state.

10. Collect information about ‘Silk Route’. Also find out the new

developments which are improving communication routes in the regions of

high altitude.

11. Locate the peaks, passes, ranges, plateaus ,hills and duns hidden in the

puzzle given below. Try to find out where these features are located.

Holiday Homework is to be completed and submitted in a file.

Guru Gobind Singh Public School Sector: V/B, B.S. City

Holiday Assignment 2017 – 18

Std: IX Subject: Computer

1. Block diagram of working CPU component.

2. Write various methods to open Windows Explorer. Show with

diagram.

3. Draw/Paste any five secondary storage device and write their

use. [ use chart paper]

4. Draw /Paste any three Input and Output devices and write their

functions. [use chart paper]

5. Separate following according to their nature/work-

light pen, VDU, Printer, Barcode header, OCR, Printer, Web

cam, MIDI device, Daisy wheel printer.

6. Learn the function of input devices.

7. Learn the function of output devices.

8. Learn exercises of chapter 1, chapter 2 & chapter 3 of Unit 1.

Note:- Make a thin file for Sl.No.1, 2 and 5.

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