Summative Assessment – I, 2011 - Anil Tutorials(ii) Filterability (iii) Type of mixture (b)...

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I, 2012 SUMMATIVE ASSESSMENT – I, 2012

/ SCIENCE

IX / Class – IX

3 90

Time allowed : 3 hours Maximum Marks : 90

(i)

(ii)

(iii)

(iv)

(v) 1 3

(vi) 4 7 30

(vii) 8 19 50

(viii) 20 24 70

(ix) 25 42

General Instructions :

(i) The question paper comprises of two Sections, A and B. You are to attempt both the

sections.

(ii) All questions are compulsory.

(iii) There is no overall choice. However, internal choice has been provided in all the five

questions of five marks category. Only one option in such questions is to be attempted.

(iv) All questions of Section-A and all questions of Section-B are to be attempted separately.

(v) Question numbers 1 to 3 in Section-A are one mark questions. These are to be answered in

one word or in one sentence.

(vi) Question numbers 4 to 7 in Sections-A are two marks questions. These are to be answered

in about 30 words each.

(vii) Question numbers 8 to 19 in Section-A are three marks questions. These are to be answered


(viii) Question numbers 20 to 24 in Section-A are five marks questions. These are to be answered


(ix) Question numbers 25 to 42 in Section-B are multiple choice questions based on practical

skills. Each question is a one mark question. You are to select one most appropriate

response out of the four provided to you.

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- A / SECTION - A

1.

A gas jar containing air is inverted over another jar containing reddish brown

vapours of bromine. After some time reddish brown colour is seen in the inverted

gas jar too. Identify the phenomenon associated with this observation.

1

2.

Name the plastid involved in conversion of a green brinjal to violet.

1

3.

Why do the athletes in a high jump event made to fall either on a cushioned bed or

on a sand bed ?

1

4.

(a)

(b)

State reason for the following :-

(a) Naphthalene balls disappear with time without leaving behind any

solid.

(b) The smell of lighted incense stick reaches you several metres away.

2

5. 10%

What is meant by concentration of a solution ? How will you prepare a 10%

solution of sugar ?

2

6.

What is apical meristem ? Where is it located ? State its functions.

2

7.

On what factors does the weight of a body depend ? Can a body have mass but no

weight ?

2

8.

Depending on the kinds of resources available, what are the different kinds of

irrigation systems adopted in our country to supply water to agricultural lands.

Mention any three.

2

9.

Based on the kind of biological material used, what are the two kinds of manures ?

How are they prepared ?

2

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10.

Define evaporation. How does it differ from boiling ? How does evaperation cause

cooling ?

3

11.

Is air a mixture or a compound ? State three reasons in support of your answer.

3

12.

Where are genes located in a cell ? Name the nuclei acids that are present in animal

cell.

3

13.

(a)

(b)

(c)

Identify the type of tissues in the following :-

(a) Eye-lid

(b) Inner lining of the intestine

(c) Lining of the kidney tubule

3

14.

List in tabular form three distinguishing features between parenchyma and

collenchyma.

3

15.

105 m

22

7

A cyclist goes around a circular track once every 2 minutes. If the radius of the

circular track is 105 m. find its speed and the displacement after 3 minutes.

(given 22

7

)

3

16. 10 30 m/s

1500 kg

Calculate the force required to impart to a car a velocity of 30m/s in 10 seconds

starting from rest. The mass of the car is 1500 kg.

3

17.

(a)

(b)

(c)

State reason for the following :

3

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(a) All the cars are provided with seat belts (b) It is dangerous to jump out of a moving bus (c) Road accidents at high speeds are much worse than the accidents at low speeds.

18. 5

(a)

(b) (g = 10 m/s2)

When a cricket ball is thrown vertically upwards, it reaches a maximum height of 5

metres.

(a) What was the initial speed of the ball ?

(b) How much time is taken by the ball to reach the highest point ?

(Take g = 10 m/s2)

3

19.

Explain what is meant by free fall and acceleration due to gravity ? What is the value

of acceleration of free fall towards the earth.

3

20.

What are plant insect pests ? How are they harmful to crops ? What are weeds ? List

two common weeds which generally grow with almost all crops. How are weeds

harmful to crop production ?

/OR

Why do bee keeping considered as an agricultural enterprise ? What is meant by

pasturage and how is it related to the quality of honey ? List two products of bee

keeping and mention one use of each.

5

21.

State the reason why for any substance during its change of state. The temperature remains constant. Illustrate with examples. List two factors which determine the state of a substance. Name the term used for the change of state directly from solid to gas and vice a versa, without changing into liquid.

/OR

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(i)

(ii)

(iii)

(iv)

(v)

Distinguish solids, liquids and gases in a tabular form for the following characteristics. (i) Rigidity (ii) Compressibility (iii) Interparticle – force of attraction (iv) Inter – particle spaces (v) Kinetic energy of particles

22. (a)

(b)

(i)

(ii)

(iii)

(iv)

(a) Draw a neat and labelled diagram of the apparatus used to separate

components of blue black ink. Name the process and state the principle

involved.

(b) Identify the physical and chemical changes from the following :-

(i) Electrolysis of water.

(ii) Burning of magnesium in air

(iii) Mixing of iron filings and sulphur powder.

(iv) Sublimation of camphor

/OR

(a)

(i)

(ii)

(iii)

(b)

(i) (ii)

(a) Distinguish among true solutions, suspensions and colloids in a tabular form

under the following properties :-

(i) Stability

(ii) Filterability

(iii) Type of mixture

(b) Identify solute and solvent in the following mixtures :-

(i) Soda water (ii) Tincture of iodine.

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23.

(i) AB BC

(ii) (a) 5 s (b) 20 s

(iii) 5 s

(iv)

The velocity – time graph of a body is given as follows :

(i) State the kind of motion represented by AB and BC (ii) What is the velocity of the body after (a) 5 s and (b) 20 s ? (iii) Calculate the acceleration of the body during last 5 s of the journey. (iv) Calculate the distance covered by the body between 5th and 15th second.

/OR

(i) OA

(ii) AB

(iii) BC

(iv) 10

(v) B C

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Study the velocity – time graph of a car given below :- and answer the following questions.

(i) What type of motion is represented by OA ? (ii) What type of motion is represented by AB ? (iii) What type of motion is represented by BC ? (iv) Find the acceleration of car during first 10 s of its motion. (v) Find the acceleration of car from B to C.

24.

10 g 400 m/s 900 g

State the law of conservation of momentum. A bullet of mass 10g moving with a velocity of 400m/s gets embedded in a freely suspended wooden block of mass 900 g. what is the velocity acquired by the block?

/OR

50 kg 80 N

State Newton’s second law of motion. How the first law of motion can be mathematically stated from the mathematical expression for the second law of motion ? A man pushes a box of mass 50 kg with a force of 80 N. What will be the acceleration of the box due to this force ? What would be the acceleration if the mass of box were doubled.

5

/ SECTION – B

25.

(i)

(ii)

(iii)

(iv)

(a) (i), (iii), (iv), (ii) (b) (iii), (iv), (ii), (i) (c) (iv), (ii), (i), (iii) (d) (ii), (i), (iii), (iv) The steps for conducting the starch test on the given sample of potato are given

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below. However these steps are not in proper order. (i) Take crushed potato in a test tube (ii) Add few drops of iodine (iii) Add water to the test tube (iv) Boil the contents and filter The most appropriate order in which the steps should be followed are :- (a) (i), (iii), (iv), (ii) (b) (iii), (iv), (ii), (i) (c) (iv), (ii), (i), (iii) (d) (ii), (i), (iii), (iv)

26. HCl

(a)

(b)

(c)

(d)

The appearance of pink colour, on adding dil HCL to a given sample of solution dal

confirms the presence of :-

(a) turmeric in the dal

(b) Metanil yellow in the dal

(c) potassium dichromate in the dal

(d) arge mone oil in the dal.

27.

(pumice stone)

(a)

(b)

(c)

(d)

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In an experiment to determine the boiling point of water, a student arranged the apparatus as shown below :

He also added some pumice stone pieces to the hard glass test tube : (a) to avoid the melting of the glass tube (b) to prevent the wastage of heat energy (c) to increase the weight of the glass tube (d) to avoid bumping.

28.

(a)

(b)

(c)

(d)

In an experiment to determine the melting point of ice Rakshita observes no change in the temperature, when she heats the ice till whole ice melts. The reason of no rise in temperature could be that the heat supplied to ice : (a) is used to change the ice from its solid state to liquid state. (b) goes to the surroundings and is not absorbed by the ice (c) has no effect on temperature because ice is very cold. (d) goes to the beaker in which it is kept.

29.

(a) (b)

(c) (d)

A mixture contains sand, iron filings, common salt and camphor. The substance (s) which get (s) separated from this mixture by sublimation is/are. (a) Sand and iron filings (b) Common salt only (c) Camphor only (d) Common salt and camphor.

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30.

(a) (b)

(c) (d)

Out of the following solutions the solution which can not be a colloid is :- (a) starch in water (b) gum in water (c) Egg albumin in water (d) sugar in water

31.

(a)

(b)

(c)

(d)

Take a mixture of iron filings and sulphur powder in one watch glass. In the other watch glass put iron sulphide. Now move a bar magnet over both the two watch glasses. The correct observation would be :- (a) bar magnet attracts iron filings from one watch glass and iron sulphide from the other watch glass (b) only iron sulphide is attracted by the bar magnet. (c) bar magnet attracts all the substances present in the watch glasses (d) bar magnet attracts only iron filings.

32.

(a)

(b)

(c)

(d)

An iron nail was suspended in copper sulphate solution and kept for a while. The solution :- (a) remained blue and a coating was formed on the nail. (b) turned pale green and a coating was formed on the nail (c) remained blue and no coating was formed on the nail. (d) turned pale green and no coating was formed on the nail

33.

(a)

(b)

(c)

(d)

Ankita added carbon disulphide to a mixture of iron filings and sulphur powder taken in a test tube. She observed that :- (a) iron particles dissolve and the solution turns grey. (b) sulphur powder dissolves and the solution turns colourless (c) sulphur powder dissolves and the solutions turns yellow (d) iron particles dissolve and the solution turns black.

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34.

(a)

(b)

(c)

(d)

Amit burnt a strip of magnesium ribbon in the flame. He observed that :- (a) a white dazzling light appears. (b) a yellow light appears. (c) magnesium starts melting. (d) lot of black smoke is produced.

35.

(a) (b)

(c) (d)

Anuj observed the cheek epithelial cells under the microscope and made a sketch. The mistake in the labelling was :- (a) presence of cell walls (b) presence of cell membrane (c) nucleus (d) cytoplasm.

36.

(i)

(ii)

(iii)

(iv)

(a) (i), (ii), (iii), (iv) (b) (iv), (i), (iii), (ii) (c) (iv), (i), (ii), (iii) (d) (i), (iii), (ii), (iv) Given below are four steps for preparing a temporary mount of human cheek cells. (i) Taking scraping from inner side of the cheek cell and spreading it on a clean slide. (ii) Putting a drop of glycerin on the material. (iii) Adding two or three drops of methylene blue (iv) Rinsing the mouth with fresh water and disinfectant solution. The correct sequence of these steps is :- (a) (i), (ii), (iii), (iv) (b) (iv), (i), (iii), (ii) (c) (iv), (i), (ii), (iii) (d) (i), (iii), (ii), (iv)

37.

(a)

(b)

(c)

(d)

To prepare stained temporary mount of onion peel we must prepare the slide by taking :- (a) dry scale leaf. (b) thin outside layer of fleshy leaf of onion. (c) thin inside layer of fleshy leaf of onion. (d) crushed pulp of fleshy leaf of onion.

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38. 1, 2, 3, 4

`````````````

(a)

(b)

(c)

(d)

A figure depicting parts of a neuron is given below. The correct identification of the

labels 1, 2, 3, 4 respectively is

(a) dendrite, cytoplasm, nucleus, nerve fibre

(b) cilia, endoplasmic reticulum, nucleus, nerve fibre

(c) dendrite, cell body, nucleus, axon

(d) dendrite, cyton, nucleus, axon

39.

(i)

(ii)

(a)

(b)

(c)

(d)

A student noted down the following observations while looking into a permanent

slide under a microscope :

(i) Cells are long and cylindrical

(ii) Light and dark bands are present giving striated appearance.

It could be a :-

(a) slide of smooth muscle fibre.

(b) slide of striated muscle fibre.

(c) slide of neuron.

(d) slide of parenchyma cells.

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40.

= 50 g

= 20 g

= 30 g

= 40 g

%

(a) 10% (b) 20% (c) 45% (d) 50%

While performing an experiment with raisins a student recorded the following

data :

Mass of water taken in the beaker = 50 g

Mass of raisins before soaking = 20 g

Mass of raisins after soaking = 30 g

Mass of water in the beaker left after experiment = 40 g

The % of water absorbed by the raisins is :-

(a) 10% (b) 20% (c) 45% (d) 50%

41.

200 gwt 100 gwt

90 gwt

(a) 0 – 100 gwt, 1.0 gwt

(b) 0 – 200 gwt, 2.0 gwt

(c) 0 – 250 gwt, 2.0 gwt

(d) 0 – 500 gwt, 5.0 gwt

A student has to perform the experiment “To establish relationship between weight

of a rectangular wooden block lying on a horizontal surface and minimum force

required to just move it using a spring balance “If the weight of the given wooden

block is nearly 200g wt and three known weight of 100g wt. Each are to be

successively placed on the wooden block to take three more readings, then which

one of the following spring balances available in the laboratory would you select for

the best results in the experiment ? It is known that a force of 90g wt. is required to

just move the block on the surface.

(a) Range 0 – 100g wt, Least count 1.0g wt

(b) Range 0 – 200g wt, Least count 2.0g wt

(c) Range 0 – 250g wt, Least count 2.0g wt

(d) Range 0 – 500g wt, Least count 5.0g wt

42.

F2 F3

(a) F1 >F2 > F3 (b) F1 < F2

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(c) F1 < F2 > F3 (d) F1 = F2 = F3 A student applied force on a wooden block placed on a horizontal surface. He gradually increased the force on the block till it just starts sliding gently on the surface. He then measured the force as F1. The same process was repeated with the same set of apparatus by his two classmates but they applied force in some other directions to slide the block and recorded. The applied force as F2 and F3. On analysing these forces it was found that. (a) F1 >F2 > F3 (b) F1 < F2 F3 (d) F1 = F2 = F3

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Summative Assessment – I, 2011 - Anil Tutorials(ii) Filterability (iii) Type of mixture (b)...

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