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SUMMATIVE ASSESSMENT –I (2011)
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SCIENCE / foKku
& IX
Class – IX /
Time allowed: 3 hours
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470023
Maximum Marks: 90
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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)
Questions 1 to 3 in section A are one mark questions. These are to be answered in
one word or in one sentence.
(vi) Questions 4 to 7 in section A are two marks questions. These are to be answered
in about 30 words each.
(vii) Questions 8 to 19 in section A are three marks questions. These are to be
answered in about 50 words each.
(viii) Questions 20 to 24 in section A are five marks questions. These are to be
answered in about 70 words each.
(ix) Questions 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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(i)
(ii)
(iii)
(iv)
(v)
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fy[kus gSaA
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gSA bu iz”uksa esa vki dsoy ,d Hkhrjh p;u dks mRrj fy[kus ds fy, pqu ldrs gSaA
vkidks Hkkx v vkSj Hkkx c ds lHkh iz”uksa ds mRrj i`Fkd&i`Fkd fy[kus gksx
a sA
Hkkx v ds iz”u la[;k 1 ls 3 ds iz”u ,d&,d vad ds gSaA buds mRrj ,d “kCn vFkok ,d okD; esa
nsAa
Page 1 of 17
Hkkx v ds iz”u la[;k 4 ls 7 ds iz”u nks&nks vadksa ds gSaA buds mRrj yxHkx 30&30 “kCnksa esa nsus gSaA
Hkkx v ds iz”u la[;k 8 ls 19 ds iz”u rhu&rhu vadksa ds gSaA buds mRrj yxHkx 50&50 “kCnksa esa nsus
gSaA
(viii) Hkkx v ds iz”u la[;k 20 ls 24 ds iz”u ikap&ikap vadksa ds gSaA buds mRrj yxHkx 70 “kCnksa esa nsus gSaA
(ix) Hkkx c ds iz”u la[;k 25 ls 42 ds iz”u iz;ksxkRed dkS”ky ij vk/kkfjr cgqfodYih iz”u gSaA izR;sd
iz”u ,d vad dk gSA fn, x;s pkj fodYiksa esa ls vkidks dsoy ,d lcls mi;qDr fodYi pquuk gSA
(vi)
(vii)
Section A
1.
Convert 370 K in to Celsius Scale (C).
370 K
2.
Which one has greater inertia : a stone of mass 1kg or a stone of mass 5 kg ?
1 kg
5 kg
3.
(a) Name the cell organelle, other than mitochondria, that has its own DNA and Ribosomes.
DNA
4.
State the principle used in separating different components of a mixture by the method of
centrifugation. List any two applications of this method.
5.
Mass of an object is 40 kg, what is its weight on the earth ? (Take g=10 m/s2)
40 kg,
g=10 m/s2
)
6.
Where are chromosomes located in a cell ? What are they composed of ? What important
information do they contain ?
7.
Where are chromosomes located in a cell ? What are they composed of ? What important
information do they contain ?
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8.
(a)
“Evaporation causes cooling” Explain the reason for this effect.
(b)
Explain two examples from our daily life where we feel the effect of cooling due to
evaporation.
(a)
(b)
9.
(a)
7 g of iron filings and 4 g of sulphur powder is treated with dilute sulphuric
room temperature. Name the gas produced.
acid
at
(b)
The same mixture is heated strongly, cooled and then treated with dilute sulphuric
acid. Which gas would be produced ?
(c)
What is the cause of this difference in results of chemical reaction in different
conditions ?
(a)
7 g
4 g
(b)
(c)
10.
(a)
Define uniform acceleration. What is the acceleration of a body moving with
uniform velocity ?
(b)
A particle moves over three quarters of a circle of radius r. What is the
its displacement ?
magnitude of
(a)
(b)
11.
„r‟
Define the term balanced force.
A hammer of mass 500 g moving with a velocity of 50ms-1 strikes a nail. The nail stops
the hammer in a very short time of 0.01 s. What is the force of the nail on the
hammer ?
500 g
50 ms-1
0.01 s
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12.
(a)
How does the gravitational force between two objects depend on the distance between
them ?
(b)
Explain your answer with reason :
In which case the force of attraction will be larger ?
(i)
Force of attraction of the earth on a body of mass 1kg.
(ii)
Force of attraction of a body of mass 1 kg on the earth.
(a)
(b)
(i)
(ii)
13.
1kg
1kg
The motion of a body of mass 5 kg is shown in the v-t graph.
Find from graph (a)
its acceleration
(b)
the force acting on the body
(c)
the change in momentum of the body 2 seconds after start
5 kg
v-t
(a)
(b)
(c)
2
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14.
The universal law of gravitation successfully explained several phenomena. Mention any
three.
15.
(a)
(b)
Name the two types of complex tissues.
Draw a neat diagram of the section of the tissue that is responsible for the translocation
of food from the leaves to the different parts of the plant ?
(a)
(b)
16.
17.
18.
19.
Write one important functional difference between Striated and Smooth muscle tissue and
draw a labeled diagram of the muscle tissue that shows rhythmic contraction and relaxation
throughout life.
Briefly explain the structure and function of Nucleus.
State three preventive and control measures taken for storage of agricultural produce.
(a)
State three ways by which pests attack the plants.
(b)
Name the chemical used to control pests.
(c)
Explain why excessive use of such chemicals should be avoided.
(a)
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(b)
(c)
20.
(a)
Name the technique used to separate oil from water and also the principle involved
in their separation.
(b)
State what are saturated solutions ?
(a)
To make a saturated solution 36 g of sodium chloride is dissolved in 100 g of water at 293
K. Find its concentration at this temperature.
(a)
(b)
36 g
(c)
100 g
293 K
OR
(a)
State what are elements ?
(b)
What are the three main types of elements ?
(b)
Write one property of each type of elements.
(a)
(b)
(c)
21.
(a)
What is matter ? Write two properties of solids and two properties of liquids.
(b)
Ramesh took two beakers A and B containing hot water and cold water respectively. In
each beaker he dropped a crystal of copper sulphate. He kept the beakers undisturbed.
After some time what did he observe ? Why ?
(a)
(b)
A
B
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OR
Define melting point of a solid. At what temperature in the Kelvin scale does ice melt ? In the
experiment to determine the melting point of ice, why does the temperature not rise till all the
ice melts even though heat is continuously supplied ? What is this heat energy called ?
22.
(a)
State Newton‟s second law of motion. Express it mathematically for a body of
mass m
moving with initial velocity u and when acted upon by a force F its velocity
becomes V. Define unit of force using this expression.
(b)
Calculate the mass of a body, if a force of 525 N produces in it an acceleration
of 3.5 m/s2.
(a)
m
u
F
(b)
525 N
V
3.5 m/s2
(a)
OR
Name the physical quantities on which the momentum possessed by an object depends.
(b)
What is the SI unit for momentum ?
(c)
From a rifle of mass 4 kg a bullet of mass 50 g is fired with an initial velocity of 35 m/s.
Calculate the recoil velocity of the rifle.
(a)
(b)
(c)
23.
SI
4 kg
50 g
35 m/s
On a 100 km track, a train travels the first 30 km at a uniform speed of 30 km h1. How
fast must the train travel the next 70 km so as to average 40 km h1 for the entire trip.
100 km
70 km
30 km
30 km h1
40 km h1
OR
A body moves with a velocity of 2 m/s for 5 s, then its velocity increases uniformly to 10
Page 7 of 17
m/s in next 5 s. Thereafter its velocity begins to decrease at a uniform rate until it comes
to rest after 5 s.
(a)
Plot a velocity - time graph for the motion of the body.
(b)
From the graph find the total distance covered by the body after 2 s and 12 s.
5s
2 m/s
5s
10 m/s
5s
(a)
(b)
24.
2s
12 s
Differentiate between capture fishing and culture fishery. Explain the advantage of
composite fish culture with example. State the problems faced on adopting
composite fish culture and also the solution found to solve it.
OR
(a)
Explain the term photoperiod.
(b)
Differentiate Kharif crops and Rabi crops with example.
(c)
How are short duration maturing crops beneficial to farmers ?
(a)
(b)
(c)
Section B
25.
When sugar is dissolved in water, the resulting solution will appear as in :
Page 8 of 17
(a)
(a)
26.
I
I
(b)
II
(b)
II
(c)
(c)
III
III
(d)
(d)
IV
IV
The correct procedure for preparing a colloidal solution of egg albumin in water is
(a)
to break the egg shell, take only the white portion and to add it to water with
constant stirring
(b)
to break the egg shell, take only the yellow portion and to add it to boiling
water with constant stirring
(c)
to boil the egg first, to break the egg shell, to add the white portion to ice cold
water and to mix
(d)
none of the above
(a)
(b)
(c)
(d)
27.
When iron filings and sulphur are heated at high temperature.
(a)
Yellow coloured iron sulphide is formed.
(b)
Black coloured FeS is formed.
(c)
Mixture of iron and sulphur is formed.
(d)
They do not react.
Page 9 of 17
(a)
(b)
FeS
(c)
(d)
28.
When solution of sodium sulphate is added to the solution of barium chloride,
1
we immediately get a precipitate as shown in test tube :
29.
(a)
A
(b)
B
(c)
C
(d)
D
(a)
A
(b)
B
(c)
C
(d)
D
While determining the melting point of ice, the thermometer
(a)
vertically dip into ice and touch the bottom of the container
(b)
vertically remain above ice
(c)
vertically dip into ice but should not touch the container
(d)
be placed well standing in ice.
Page 10 of 17
(a)
(b)
(c)
(d)
30.
A student takes some water in a beaker and heats it over the flame for determining its boiling
point. He keeps on taking its temperature readings. He would observe that the temperature of
water
(a)
keeps on increasing regularly
(b)
keeps on increasing irregularly
(c)
first increases slowly, then decreases rapidly and eventually becomes constant
(d)
first increases gradually and then become constant
(a)
(b)
(c)
(d)
31.
The respective correct labelling of 1, 2 and 3 in the following diagram is :
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(a)
China dish, wire gauge, tripod
(b)
China dish, tripod and wire gauge
(c)
Funnel, wire gauge and china dish
(d)
Funnel, wire gauge and tripod
1, 2
3
Page 12 of 17
32.
(a)
(b)
(c)
(d)
When you add carbon–di–sulphide in a test–tube containing a mixture of iron filings and
sulphur powder, then what do you observe after shaking the test–tube well.
(a)
Sulphur dissolves to form colourless solution and iron filings settles down
(b)
Some brown gas is evolved
(c)
Yellow solution is formed and iron filings settles down
(d)
After sometime, carbon–di–sulphide, sulphur and iron filings form three separate
layers in the test tube.
(a)
(b)
(c)
(d)
33.
When zinc is added in dilute sulphuric acid, then out of the following observations which
is not correct ?
(a)
Tiny bubbles with evolution of colourless and odourless gas.
(b)
Lighted match stick extinguishes.
(c)
Gas burns with a popping sound.
(d)
Moist blue litmus paper turns red.
(a)
(b)
(c)
(d)
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34.
The colour of the pure ammonium chloride powder is :
(a)
White
(b)
(a)
35.
Blue
(c)
(b)
Green
(c)
Red
(d)
A student recorded the mass of dry raisins as 3.0g and the mass of raisins after soaking in
water as 4.8g . While performing the above experiment. The percentage of water absorbed by
raisin is :
(a)
20%
(b)
30%
(c)
60%
3.0g
(a)
36.
(d)
(d)
40%
(d)
40%
4.8g
20%
(b)
30%
(c)
60%
To observe cells in an onion peel, we must prepare the slide by mounting on it :
(a)
Crushed pulp of onion
(b)
Dry scale leaf
(c)
Green leaf of onion
(d)
Thin layer of fleshy leaf of onion
(a)
(Crushed pulp)
(b)
(scale)
(c)
(d)
37.
On the laboratory table were placed four watch glasses with labels A, B, C and D.
Watch glass „A‟ had chalk powder, „B‟ had sago powder, „C‟ had common salt and D
had powdered sugar. On adding two drops of iodine to the content of each watch
glass the one turning blue black will be :
(a)
A
(b)
B
A, B, C
(c)
D
C
(d)
„A‟
D
„B‟
Page 14 of 17
(sago)
(a)
38.
„C‟
A
D
(b)
B
(c)
C
(d)
D
Four samples of arhar dal were taken in four test tubes with some water in each and
labelled P,Q, R and S. A few drops of the following were added to these test tubes,
water to test tube P, HCl to test tube Q, NaOH to test tube R and alcohol to test tube S.
We would be able to confirm adulteration of the dal with metanil yellow in test tubes :
(a)
P and Q
(b)
Q and R
P,Q, R
R
NaOH,
(a)
39.
40.
(c)
R and S
S
(d)
P
S and P
Q
HCl,
(d)
S
S
P
Q
(b)
Q
R
(c)
R
S
P
Which of the following liquids is not used in the preparation of stained temporary mount
of onion peel.
(a)
Water
(b)
Safranin
(c)
Glycerine
(d)
Methylene blue
(a)
(b)
(c)
(d)
Which of the following is not a characteristic feature of the parenchyma tissue ?
(a)
cells are thin walled and prominent nucleus
(b)
cells have thickening at the corners
(c)
a large single vacuole is present in each cell
(d)
cells are thick walled
Page 15 of 17
(a)
(b)
(c)
(d)
41.
A student put five raisins each in two beakers A and B. Beaker A contained 50 mL of distilled
water and beaker B has 50 mL of saturated sugar solution. After some time the student would
observe that :
(a)
raisins in beaker A were more swollen than those in beaker B.
(b)
raisins in beaker B were more swollen than those in beaker A.
(c)
raisins in both beakers A and B were equally swollen.
(d)
raisins in beaker A did not swell up at all.
A
B
2
A
50 mL
B
50 mL
(a)
A
B
(b)
B
A
(c)
(d)
42.
A
The characteristic features of sclerenchyma are :
(a)
living cells with highly thickened walls
(b)
living cells with thin walls
(c)
dead cells with thin walls
(d)
dead cells with thickened walls
Page 16 of 17
(a)
(b)
(c)
(d)
Page 17 of 17