science questionpapersa2 2012

086/IX/SA2/29/B1

Class - IX SCIENCETime : 3 to 3½

hoursMaximum Marks : 80Total No. of Pages : 12 General Instructions :

1.The question paper comprises of two sections, A and B. You are to attempt both the sections.2.All questions are compulsory.3.There is no overall choice. However, internal choice has been provided in all the three questions of five marks category. Only one option in such question is to be attempted.4.All questions of section A and all questions of section B are to be attempted separately.5.Question numbers 1 to 4 in section A are one mark questions. These are to be answered in one word or one sentence.6.Question numbers 5 to 13 are two mark questions, to be answered in about 30 words.7.Question numbers 14 to 22 are three mark questions, to be answered in about 50 words.8.Question numbers 23 to 25 are five mark questions, to be answered in about 70 words.9.Question numbers 26 to 41 in section B are multiple choice questions based on practical skills. Each question is a one mark question. You are to choose one most appropriate response out of the four provided to you.10. An additional 15 minutes time has been allotted to read this question paper only. During this interval you are not to write any thing on the answer book.

.

SECTION - A

1.

2.

3.

4.

5.

Define 1 W of power.

Why is air called breath of life.

When is work done by a force zero.

How is CO2 fixed in the atmosphere.

Calculate number of moles in 34 g of NH3(Given atomic mass of N 5 14 u ; H 5 1 u ) ?

(a)(b)

Give a difference between lizards and snakes.Name the type of nutrition in fungi.

1

1

1

1

2

6. 11

2

2

2

2

7.

8.

9.

10.

Why is a bucket of water lighter when in water than when it is taken out of water.

Draw a graph showing a person with soft and loud voice.

How do forest play an important role in maintaining water cycle.

Write chemical formulas of :(a) Sodium Carbonate(b) Ammonium Chloride

Thallophyta, bryophyta and pteridophyte are classified as cryptogamae whereasgymnosperms and angiosperms are classified as phanerogamae, why ?

(a)(b)

Differentiate between upthrust and weightWhen does an object float or sink.

11. 2

12. 11

2

3

13.

14.

Name the two ways of preventing water pollution.

To which group do the following organism belong and give one reason for each.(a) Cyanobacteria(b) Euglena(c) Ulothrix

Calculate number of atoms in 120 g of Ca :(atomic mass of Ca 5 40 u)

(a)(b)

What is immunization.Categorise the following into acute / chronic / infectious / non infectious diseases :typhoid, TB, GOITRE, Elephantiasis.

15. 3

16. 12

086/IX/SA2/29/B1 2

17. (a)(b)

(a)

(b)

19. (a)(b)

Define the term molecular mass.State and explain law of conservation of mass with example.

A truck and a car are running with same velocity. Which of the two has lesskinetic energy ?Give an example of electrical energy converted into light energy.

State a condition for an echo to be heard.Bats cannot see then how do they catch their Prey.

12

2

1

12

3AIDS (c) Malaria

3

18.

20. Give cause and remedy of :(a) Hepatitis(b)

21. A sound wave travels at a speed of 339 m/s ‘ if the wavelength is 1.2 cm, what is thefrequency of the wave.

What are the different means by which infectious diseases can spread.

(a)

(b)

The K. E of an object of mass m, moving with a velocity 5 m/s is 25 J. What willbe its K. E when its velocity is doubled and tripled.An object of mass 12 kg is at a certain height above the ground. If the P. E of theobject is 480 J, find the height at which the object is w. r. t the ground.(Given g 5 10 m/s2) ORDefine K. E and drive the expression for K. E ?A man weighing 70 kg carries a weight of 10 kg to the top of tower 100 m high.Calculate the work done.

Write the symbol and name of the element having 14 proton.Complete the table.

22.

23.

3

3

2

(a)(b)

32

24. (a)(b)

13

Element Atomic No Mass No Cl17- Si-28 F--

(c)

(a)

(b)

Proton - - 9

Neutron 18 - 10

1

3

2

Give one draw back of Rutherford model. ORThe average atomic mass of a sample of an element X is 16.2u. What are thepercentage of isotope 16X8 and 18X8 in the sample.On the basis of Thomson’s model of an atom explain how the atom is neutral asa whole.

Draw nitrogen - cycle.Why step farming is common in hills. ORDifferentiate between Biodegradable and Non biodegradable substances.How is acid rain causing harm to ‘Taj Mahal’.What is Smog.

3

25. (a)(b)

(a)(b)(c)

41

311

086/IX/SA2/29/B1

SECTION - B

26. Non - flowering plants belongs to :(a)

27.

Cryptogam (b) Phanerogams (c) dicots (d) monocots

1

1

The correct way of reading the liquid level is shown in :

(a)

28.

fig A (b) fig B (c) fig C (d) fig D

1While determining the density of copper piece using spring balance and a measuringcylinder Nitin carried out the following procedure :(i)(ii)(iii)(iv)

Noted the water level in the measuring cylinder without the copper piece.Immersed the copper piece in the waterNoted the water level in the measuring cylinder with the copper piece inside it.Removed the copper piece from the water and immediately weighed it using astring balance.

step i (b) step ii (c) step iii (d) step ivthe wrong step in the produce is :(a)

29. Form measuring cylinders with different least counts are shown in fig A, B, C and D.The most suitable cylinder for determining the volume of a cube of side nearly 1 cm is :

1

(a)

30.

A (b) B (c) C (d) D

1Which of the following is not an amphibian :(a) Sea - anemone (b) Frog

4

(c) toad (d) Hyla

086/IX/SA2/29/B1

31. Three students A, B and C determined volume of a solid by immersing it in water in theover flow cans set up as shown. The result obtained will be wrong for.

1

(a)(c)

32.

student Astudent C

(b)(d)

student Ball the three students.

1The correct experimental set up for determining the mass of a solid in water is shownin fig :

(a)

33.

A (b) B (c) C (d) D

1The correct position of the ear of the observer is shown in :

A B

C

(a) A (b) B

5

(c)

D

C (d) D

086/IX/SA2/29/B1

34. Non - green saprophytic plant is :(a) Marsilea(b) Marchantia

1(c) Paramecium (d) Rhizopus

135. When a body sinks in a liquid the weight of the body is :(a) More than the volume of body(b) Less than the volume of body(c) Less than the buoyant force(d) More than the buoyant force

Which of the following show aquatic adaptation.(a) Snake(b) fish(c) Bacteria

The(a)(b)(c)(d)

wave pulse can be produced on a rope whose one end is fixed : By giving a single jerk to the other end. By giving more jerks to the other end. By giving continues jerks. Either (a) or (b) or (c)

36. 1(d) toad

137.

38. To observe and compare the pressure exerted by solid cuboid in its up right position,student A placed the cuboid gently on the loose sand while B placed it on the surface oftable top. Who will observe the exerted pressure by cuboid easily ?(a) Student A only(b) Student B only(c) Both student A and B(d) Neither A nor B.

Cells of bacteria contain :(a) cell wall(c) both (a) and (b)

1

39. 1(b)(d)

chromatin fibremay be (a) or (b)

140. In the experiment for determining the velocity of a pulse propagating along the lengthof string we prefer a long thick cotton string :(a) Because pulse can not be formed in a thin short string.(b) Because cotton string is cheap and easily available(c) So that pulse move through it easily(d) So that time taken by pulse to move from one end of string to other may be accurately determined.

Which of the following is a warm - blooded animal :(a) Liver - fluke(b) Human being(c) Draco(d) Salamander

41. 1

-o0o-

086/IX/SA2/29/B1 6

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16. (a)(b)

ÅUè·¤æ·¤ÚU‡æ Øæ ãñ?�

çÙÙçÜç¹Ì ·¤æð Ìèßý� /Îèƒæü·¤æçÜ·¤/â´R¤æ×·¤/¥â´R¤æ×·¤

ÚUæð»æð´ ×ð´ Ÿæð‡æè Õh ·¤èçÁ° Ñ

12

ÅUæØÈ¤æ§ÇU, ÅUèÕè, »æØÅUÚU, °çÜ$Èð¤ÙÅUæ§çââÐ

17. (a)(b)

¥æç‡ß·¤ ÎýÃØ×æÙ ·¤æð ÂçÚUÖæçáÌ ·¤èçÁ°Ð©ÎæãÚU‡æ âçãÌ ÎýÃØ×æÙ â´ÚUÿæ‡æ ·ð¤ çÙØ× ·¤æð SÂC ·¤ÚUæðÐ

12

318. (a)(b)

°·¤ ÅþU·¤ ÌÍæ °·¤ ·¤æÚU â×æÙ ßð» âð »çÌ×æÙ ãñ´Ð §Ù×ð´ ç·¤â·¤è »çÌÁ ª¤Áæü ·¤× ãæð»è?çßléÌ ª¤Áæü ·¤æ Âý·¤æàæ ª¤Áæü ×ð´ M¤Âæ‹ÌÚU‡æ ·¤æ °·¤ ©ÎæãÚU‡æ ÎæðÐ

19. (a)(b)

ç·¤âè ÂýçÌŠßçÙ ·¤æð âéÙÙð ·ð¤ çÜ° °·¤ àæÌü ÕÌæ¥æðÐ 12

3

¿×»æÇ¸Î Îð¹ Ùãè´ â·¤Ìð, Ìæð ßã ¥ÂÙæ çàæ·¤æÚU ·ñ¤âð Â·¤Ç¸Ìð ãñ´?

×ÜðçÚUØæ

20. ·¤æÚU‡æ ÌÍæ çÙÎæÙ ÕÌæ¥æð Ñ(a) ÂèçÜØæ (b) AIDS °Ç÷Uâ (c)

21.

22.

23.

°·¤ ŠßçÙ ÌÚÚ» 339 m/s ·¤è ¿æÜ âð »çÌ×æÙ ãñ, ØçÎ ÌÚÚ» ÎñŠØü 1.2 cm ãñ, ÌÕ ÌÚÚ» ·¤è ¥æßëçæ Øæ ãæð»è?� �

3

3â´R¤æ×·¤ ÚUæð»æð´ ·ð¤ Èñ¤ÜÙð ·ð¤ çßçÖóæ ÌÚUè·ð¤ Øæ ãñ´?�(a)

(b)

ç·¤âè m ÎýÃØ×æÙ ·¤è ßSÌé 5 m/s ·ð¤ ßð» âð »çÌ×æÙ ãñ, ·¤è »çÌÁ ª¤Áæü 25 J ãñÐ ÁÕ ßð» ·¤æð Îé»Ùæ 2+3=5ÌÍæ çÌ»éÙæ ç·¤Øæ ÁæÌæ ãñ Ìæð »çÌÁ ª¤Áæü Øæ ãæð»è?�12 kg ÎýÃØ×æÙ ·¤è ·¤æð§ü ßSÌé Âë‰ßè âð ·é¤ÀU ª¡¤¿æ§ü ÂÚU ãñ, ØçÎ ßSÌé ·¤è çSÍçÌÁ ª¤Áæü 480 J ãñ Ìæð§â·¤è Âë‰ßè âð ª¡¤¿æ§ü ™ææÌ ·¤ÚUæðÐ (g 5 10 m/s2) ¥Íßæ

(a)(b)

»çÌÁ ª¤ÁæüU ·¤è ÂçÚUÖæáæ çÜ¹æð ÌÍæ »çÌÁ ª¤ÁæüU ·ð¤ çÜØð ÃØ´Á·¤ SÍæçÂÌ ·¤ÚUæðÐ

»‡æÙæ ·¤èçÁ°Ð

3+2=5ØçÎ 70 kg ÖæÚU ·¤æ ÃØçQ¤ 10 kg ÖæÚU Üð·¤ÚU 100 m ª¡¤¿ð ÅUæßÚU ÂÚU ¿É¸Ìæ ãñ Ìæð ç·¤Øð »Øð ·¤æØü ·¤è

24. (a)(b)

14 ÂýæðÅUæÙ ßæÜð Ìˆß ·¤æ ÂýÌè·¤ ÌÍæ Ùæ× çÜ¹æðÐ

13âæÚU‡æè ·¤æð

ÂêÚUæ ·¤ÚUæð²nÅCl Si F

¨ÀY½ÌmÌÏÆVŠ½ÌšŠ �´ã©¾½Ì¿ÆÈšg¾Ì 17- -28 --

¨ãÌ«YÌ¿Ö - - 9

q¾Ð«Yä Ì¿ 18 - 10

(c) ÚUÎÚUÈ¤æðÇüU ×æòÇUÜ ·¤è °·¤ ·¤×è çÜ¹æðÐ

¥Íßæ

8

1

086/IX/SA2/29/B1

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(a)

(b)

25. (a)(b)

ç·¤âè Ìˆß ·ð¤ Ù×êÙð

ÂýçÌàæÌÌæ ™ææÌ ·¤èçÁ°ÐÍæ×âÙ ·ð¤ ÂÚU×æ‡æé ×æòÇUÜ ·ð¤ ¥æÏæÚU ÂÚU SÂC ·¤ÚUæð ç·¤ ÂÚU×æ‡æé ©ÎæâèÙ ãæðÌæ ãñÐ

Ùæ§ÅþUæðÁÙ ¿R¤ ·¤æ ¥æÚðU¹ ÕÙæ§°Ð

X ·¤æ ¥æñâÌ ÂÚU×æ‡æé ÖæÚU 16.2 u ãñÐ §â Ù×êÙð ×ð´ 16X8 ÌÍæ 18X8 â×SÍæçÙ·¤æð´

·¤è 3

2

4ÂãæÇ¸æð´ ×ð´ âèÉ¸è Ùé×æ ¹ðÌè Øæð´ �âæ×æ‹Ø ãñ? ¥Íßæ

1

(a)(b)(c)

Áñß çÙÙè·¤ÚU‡æ ÌÍæ ¥ÁñßçÙÙè·¤ÚU‡æ � �ÂÎæÍæðZ ×ð´ ¥‹ÌÚU SÂC ·¤èçÁ°Ð

311

¥ÜèØ ßáæü ÒÌæÁ ×ãÜÓ ·¤æð �·ñ¤âð ãæçÙ Âã¡é¿æ ÚUãè ãñ?Ïê×-·¤æðãÚUæ Øæ� ãñ?

¹‡ÇU - Õ

26. çÕÙæ-ÂécÂ ßæÜð ÂæñÏð âÕç‹ÏÌ ãñ Ñ� 1(a)

27.

çR¤ÂÅUæð»ñ× (b) Èñ¤ÙÚUæð»ñ×

(c) çmÕèÁÂæè� (d) °·¤ÕèÁÂæè�

1ÎýßÌÜ ·ð¤ ÂæÆ÷UØæ´·¤ ·¤æ âãè ÌÚUè·¤æ çÎ¹æØæ »Øæ ãñ Ñ

(a)

28.

ç¿˜æ A (b) ç¿˜æ B (c) ç¿˜æ C (d) ç¿˜æ D

1çÙçÌÙ Ùð ·¤×æÙèÎæÚU ÌéÜæ ÌÍæ ×æÂ·¤ çâçÜ´ÇUÚU ·¤æ ÂýØæð» ·¤ÚU·ð¤ Ìæ¡Õð ·ð¤ ÅéU·¤Ç¸ð ·ð¤ ƒæÙˆß çÙÏæüÚU‡æ ·ð¤ çÜ°

çÙÙçÜç¹Ì çßçÏ ¥ÂÙæØè Ñ�

(i)(ii)(iii)(iv)

çÕÙæ Ìæ¡Õð ·ð¤ ÅéU·¤Ç¸ð ·ð¤ ×æÂ·¤ çâçÜ´ÇUÚU ×ð´ ÂæÙè ·¤æ ÌÜ ÙæðÅU ç·¤ØæÐ

ÂæÙè ×ð´ ·¤æÂÚU (Ìæ¡Õð) ·¤æ ÅéU·¤Ç¸æ ÇéUÕæØæÐ×æÂ·¤ çâçÜ´ÇUÚU ×ð´ Ìæ¡Õð ·ð¤ ÅéU·¤Ç¸ð ·ð¤ âæÍ ÂæÙè ·¤æ ÌÜ ÙæðÅU ç·¤ØæÐÂæÙè âð ·¤æÂÚU ·ð¤ ÅéU·¤Ç¸ð ·¤æð çÙ·¤æÜ·¤ÚU ÌéÚU‹Ì ·¤×æÙèÎæÚU ÌéÜæ ÂÚU §â·¤æ ÖæÚU çÜØæÐ§â çßçÏ ×ð´ »ÜÌ ÂÎ ãñ

ÂÎ i (b)(a) ÂÎ ii

9

(c) ÂÎ iii (d) ÂÎ iv

086/IX/SA2/29/B1



29. çßçÖóæ ¥ËÂÌ× ×æÂ ·ð¤ ¿æÚU ×æÂ·¤ çâçÜ´ÇUÚU

ƒæÙ ·¤æ ¥æØÌÙ çÙÏæüÚU‡æ ·¤ÚUÙð ·ð¤ çÜØð âÕâð ©ÂØéQ¤ ×æÂ·¤ çâçÜ´ÇUÚU ãñ Ñ

A, B, C ÌÍæ D ç¿˜æ ×ð´ çÎ¹æØð »Øð ãñ´Ð 1 cm ÖéÁæßæÜð 1

(a)

30.

A (b) B (c) C (d) D

1çÙÙ ×ð´ âð ·¤æñÙ ÁÜ-SÍÜ ¿ÚU Ùãè´ ãñ?�

(a)

31.

â×éÎýè-°ðÙè×æðÙ

(b) ×ðÉ¸·¤ (c) ÅUæðÇU (d) ãæ§Üæ

1¥æŒÜæß Âæ˜æ ·¤æ ÂýØæð» ·¤ÚU·ð¤ ÂæÙè ×ð´ ÇéUÕæØð ãé° ÆUæðâ ·¤æ ¥æØÌÙ ™ææÌ ·¤ÚUÙð ·ð¤ çÜ° ÌèÙ ÀUæ˜ææð´ A, B ÌÍæ CÙð ç¿˜æ ×ð´ çÎ¹æ° ¥ÙéâæÚU ÂýØæð» âðÅU ç·¤ØæÐ Âýæ# ÂçÚU‡ææ× »ÜÌ ãæð»æÐ

(a)(c)

32.

ÀUæ˜æ A ·¤æÀUæ˜æ C ·¤æ

(b)(d)

ÀUæ˜æ B ·¤æâÖè ÌèÙæð ÀUæ˜æ ·¤æ

1ç·¤âè ÆUæðâ ·ð¤ ÂæÙè ×ð´ ÎýÃØ×æÙ çÙÏæüÚU‡æ ãðÌé âãè ÂýØæð» ç·¤â ç¿˜æ ×ð´ ÎàææüØæ »Øæ ãñ?

(a) A (b) B

10

(c) C (d) D

086/IX/SA2/29/B1



33. ŸææðÌæ ·ð¤ ·¤æÙ ·¤è âãè çSÍçÌ ç·¤â ç¿˜æ ×ð´ ÎàææüØè »Øè ãñ? 1

A B

C

(a)

34.

A (b) B (c)

D

C (d) D

1¥-ãçÚUÌ ×ëÌæðÂÁèßè´ ÂæñÏæ ãñ Ñ(a) ×æÚUâèçÜØ

æ(b) ×·ðZ¤çàæØ

æ(c) ÂðÚUæ×èçàæØ

×(d) ÚUæ§ÁæðÂâ

35. ÁÕ ·¤æð§ü ßSÌé Îýß ×ð´ ÇéUÕÌè ãñ Ìæð ßSÌé ·¤æ ÖæÚU Ñ(a)

(c)

1

(b)

(d)

ßSÌé ·ð¤ ¥æØÌÙ âð ¥çÏ·¤

©ˆÂÜæßÙ ÕÜ âð ·¤×

ßSÌé ·ð¤ ¥æØÌÙ âð ·¤×

©ˆÂÜæßÙ ÕÜ âð ¥çÏ·¤

136. çÙÙçÜç¹Ì ×ð´ âð ·¤æñÙ ÁÜèØ ¥Ùé·ê¤ÜÌæ ·¤æð çÎ¹æÌæ ãñ?�

(a)

37.

âæ¡Â (b) ×ÀUÜè (c) Áèßæ‡æé

(d) ÅUæðÇU

°·¤ ÚUSâè ·¤æ çÁâ·¤æ °·¤ çâÚUæ çSÍÚU ãñ, âð °·¤ ÌÚ´U»-SÂ´Î ©ˆÂóæ ·¤è Áæ â·¤Ìè ãñ Ñ(a)

(c)

1ÎêâÚðU çâÚðU âð °·¤ ÛæÅU·¤æ Îð·¤ÚU

(b)

(d)

ÎêâÚðU çâÚðU ÂÚU ¥çÏ·¤ ÛæÅU·ð¤ Îð·¤ÚUÜ»æÌæÚU

ÛæÅU·ð¤ Îð·¤ÚUÌèÙæð´ (a), (b) Øæ (c)

138. ÆUæðâ ƒæÙæÖ mæÚUæ ª¤ÂÚU ·¤è çÎàææ ×ð´ Ü»æØð »Øð ÎæÕ ·¤æ Âýðÿæ‡æ ·¤ÚUÙð ÌÍæ ÌéÜÙæ ·¤ÚUÙð ·ð¤ çÜ°, ÀUæ˜æ A Ùð ƒæÙæÖ·¤æð ÏèÚðU âð ÚðUÌ ÂÚU ÚU¹æ ÁÕç·¤ ÀUæ˜æ B Ùð ×ðÁ ·¤è âÌã ·ð¤ ª¤ÂÚU ÚU¹æÐ ƒæÙæÖ mæÚUæ Ü»æØð »Øð ÎæÕ ·¤æð ·¤æñÙ¥æâæÙè âð çÙÚUèÿæ‡æ ·¤ÚðU»æ?(a)

(c)

·ð¤ßÜ ÀUæ˜æ A

ÎæðÙæð´ ÀUæ˜æ A ÌÍæ B

(b)

(d)

·ð¤ßÜ ÀUæ˜æ B

©ÂÚUæðÌ ×ð´ âð ·¤æð§ü �Ùãè´

139. ÕñÅUèçÚUØæ ·¤è �·¤æðçàæ·¤æ°´ ÚU¹Ìè ãñ´ Ñ(a)

(c)

·¤æðçàæ·¤æ çÖçæ�

(a) ÌÍæ (b) ÎæðÙæð´

(b)

(d)

11

R¤æð×ðçÅUÙ Ì‹Ìé(a) Øæ (b)

086/IX/SA2/29/B1



40. ÌæÚU âð ãæð·¤ÚU »×Ù ·¤ÚUÙð ßæÜð SÂ´Î ·¤æ ßð» çÙÏæüçÚUÌ ·¤ÚUÙð ßæÜð ÂýØæð» ×ð´ ã× ÜÕè ×æðÅUè ·¤ÂÇðU ·¤è ÇUæðÚUè ·¤æð�ÂýæÍç×·¤Ìæ ÎðÌð ãñ´ Ñ(a)

(b)

(c)

(d)

1

Øæð´ç·¤ ÂÌÜè ÀUæðÅUè ÇUæðÚUè ×ð´ SÂ´Î Ùãè´� ÕÙ â·¤ÌèÐØæð´ç·¤ ·¤ÂÇ¸ð ·¤æð ÇUæðÚUè âSÌè ÌÍæ ¥æâæÙè âð �©ÂÜÏ ãñÐ�Ìæç·¤ SÂ´Î §ââð ¥æâæÙè âð »çÌ ·¤ÚU â·ð¤ÐÌæç·¤ SÂ´Î ·¤æð ÇUæðÚUè ·ð¤ °·¤ çâÚðU âð ÎêâÚðU çâÚðU Ì·¤ »çÌ ·¤ÚUÙð ×ð´ Ü»ð â×Ø ·¤æð âãè É¸´» âð çÙÏæüçÚUÌ ç·¤ØæÁæ â·ð¤Ð

1

(c)

41. çÙÙçÜç¹Ì ×ð´ âð ·¤æñÙ â× ÌæÂè (ª¤c‡æ ÌæÂè) Á‹Ìé ãñ?�

(a) ÜèßÚU Üê·¤� (b) ×ÙécØ ÇðþU·¤æð

(d) âðÜæ×ð´ÇUÚU

-o0o-

086/IX/SA2/29/B1 12


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