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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) Allquestions 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) Allquestions of Section-Aand allquestions of Section-Bare
to be attempted separately.
(v) Question numbers 1to 3in Section-Aare one markquestions.
These are to be answered in
one wordor in one sentence.
(vi) Question numbers 4to 7in Sections-Aare two marksquestions.
These are to be answered
in about 30 wordseach.
(vii) Question numbers 8to 19in Section-Aare three
marksquestions. These are to be answered
in about 50 wordseach.
(viii) Question numbers 20to 24in Section-Aare five
marksquestions. These are to be answered
in about 70 wordseach.
(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.
SC1-076
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SECTION A
1.
Name the property of gases that helps aquatic plants and animals
to survive inwater ?
2.
Name the site where proteins are synthesized in a cell ?
3. A 8 kg B 20 kg
An object A of mass 8 kg and an object B of mass 20 kg are to be
pushedsimultaneously. Which of the two has greater inertia ? Give
reason for youranswer.
4.
Write the chemical name of dry ice. Justify its name. How is it
stored ?
5.
Both smoke and fog are called as Aerosols. Identify the
dispersed phase and
dispersing medium in each of them .
6.
Distinguish between tendon and ligament. Write one
characteristic of each.
7.
State the universal law of gravitation. Mention two phenomenon
which are
explained by it.
8.
Explain how compost is made. What makes it a good manure ? What
isvermicompost ?
9.
List three ways by which an insect pest attack the plants ?
10.
Write any three differences between Evaporation and Boiling.
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11. A B 20 K
A mixture containing two liquids A and B which differ in their
boiling points by20 k. Suggest a suitable process to separate them.
Draw a neat labelled diagramto explain this process.
12.
Draw and label the parts of prokaryotic cell.
13.
Explain three functions of parenchyma tissues.
14.
Name the constituents of xylem. Write one function of each of
them.
15.
(i)
(ii)
(iii)
Given below are few speed time graphs for motion of objects
moving along a
straight line. Which of these graphs represent the motion of the
body whose
speed is :
(i) increasing with time
(ii) uniform
(iii) non-uniform
16. 200 g 400 g 4 ms1 2 ms
1
15 ms
1
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Two objects of masses 200 g and 400 g are moving along the same
straight line
and direction with velocities of 4 ms1 and 2 ms
1 respectively. They collide and
after collision the first object moves at a velocity of 15 ms1
Determine the
velocity of the second object.
17.
Derive first law of motion mathematically from the second law of
motion.
Explain why it is safe to wear safety belts in car ?
18. 50 kg 60 kg 1m
(G6.671011Nm2kg2)
Calculate the force of gravitation between a boy of mass 50kg
and his friend ofmass 60 kg sitting at a distance of 1 m from each
other.
(G6.671011Nm2kg2)
19. M R
What is meant by acceleration due to gravity ? Derive an
expression for
acceleration due to gravity in terms of mass M of earth and its
radius R.
20. (i)
(ii)
(i) Explain the various cropping patterns adopted by farmers.
Mention the
basis of selection of crops.
(ii) Write one advantage of any two crop patterns.
/ OR
(a)
(b)
(c)
(a) List two reasons why beekeeping is a good source of incomes
for
farmers.
(b) Name the Italian breed which has been brought to increase
honey
production. List its four features that make it suitable for the
purpose.
(c) What is pasturage. Name the factors on which quality of
honey depends.
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21. (a)
(b)
(a) List all the factors that affect rate of evaporation.
Explain how each
factor affects it.(b) Water kept in earthen pot becomes cool
during summer. Explain how it
so happens.
/ OR
(a)
(b)
(i) 110C (ii) 20C
(c)(a) Draw a flow diagram for inconversion of the three states
of matter and
indicate the name of process for each interconversion.(b)
Convert the following temperatures to Kelvin scale
(i) 110C (ii) 20C(c) List the two factors that determine the
state of a given substance.
22. (a)
(b)
(i)
(ii)
(a) Mention any two differences between physical and chemical
changes.Give one example of each.
(b) List any two properties for each following case of metals
which makesthem suitable to be used as :(i) utensils for cooking
food(ii) wires for electrical connections
/ OR
(a) 330 g 30 g
/
(b)
(c)
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/ OR
(a)
(b) 10 kg 80 cm
10 ms2
(a) State Newtons second law of motion. From its mathematical
formulationobtain an expression for force.
(b) Calculate the momentum transferred by a stone of mass 10 kg
to the floorwhen it falls form a height of 800 m. Its downward
acceleration is
10 ms2.
/ SECTION - B
25.
(a) (b) (c) (d)
Obtaining a blue black colour by adding iodine solution to a
food extractindicates the presence of _________(a) starch (b)
glucose (c) fat (d) protein
26.
(a) (b) HCl
(c) H2SO
4 (d) HNO
3
To test the presence of metanil yellow in dal, the chemical used
is _
(a) alcohol (b) dil HCl(c) Conc. H
2SO
4 (d) Conc. HNO
3
27.
(a) (b)
(c) (d)
To determine the boiling point of water the bulb of the
thermometer should
(a) be completely dipped in water
(b) just touch the bottom of flask
(c) be near the mouth of the flask(d) be just above the surface
of water
28.
(a) 0C
(b) 1C
(c) 0C
(d) 1C
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In an experiment to determine the melting point of ice, during
melting of ice,
which of the following observation is correct.
(a) the temperature remains constant at 0C till ice and water
remain in
mixture.
(b) the temperature first decreases to 1C and remains constant
at this
value.
(c) the temperature decreases at first to 0C and then starts
increasing as
soon as ice starts melting.
(d) the temperature first decreases to1C and then increases.
continuously
till the whole ice melts.
29.
(a) (b)
(c) (d)
To separate a mixture of sodium chloride and ammonium chloride
the mostsuitable technique used is :
(a) Evaporation (b) Sublimation
(c) Filtration (d) distillation
30. A, B, C D
/
(a) B D (b) A B
(c) D (d) B C
Four students A,B,C and D are asked to prepare a colloidal
solution. The
following diagrams show the preparation done by them. Correct
preparation of
colloidal solution has been done by :
(a) B and D (b) A and B
(c) Only D (d) B and C
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31.
(a)
(b)
(c)
(d)Which of the following properties of iron and sulphur mixture
and iron sulphideis correct ?(a) Both are heterogeneous(b) Both are
homogeneous(c) Mixture of iron and sulphur is homogeneous and
ironsulphide is
heterogeneous(d) Iron sulphide is homogeneous and mixture of
iron and sulphur is
heterogeneous.
32.
(a) (b)
(c) (d)
The gas formed when Zinc react with Sulphuric acid is :(a)
Hydrogen (b) Carbon-di-oxide(c) Sulphur dioxide (d) Hydrogen as
sulphide
33.
(a) (b) (c) (d)
In a mixture of iron and sulphur, the colour of sulphur is :(a)
Brown (b) Balck (c) Grey (d) yellow
34.
(a)
(b)
(c)
(d) (a), (b) (c)
On heating copper sulphate crystals the observation made is :(a)
colour of crystals changes(b) a crackling sound is produced(c)
water droplets are collected on the cooler side of the test tube(d)
All the observations stated in (a), (b), (c) above
35.
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Correct diagram of cells of onion peel is
36.
(a)
(b)
(c)
(d)
While preparing temporary mount of substance straining is
carried out to :(a) highlight cell components(b) clean cells(c)
increase transparency of cells(d) prevent drying up of cells
37.
(a) (b)
(c) (d)
cheek cells are covered by :(a) Cell wall
(b) Cytoplasm(c) Nuclear membrane(d) Plasma membrane
38.
(a) (b)
(c) (d)
A plant tissue having thick walled similar cells is :(a)
Collenchyma (b) Parenchyma(c) Sclerencyma (d) Xylem
39.
(a) (b) (c) (d)
After observing the slide of nerve tissue a student was asked to
draw its diagram
and mark the part which has nucleus and cytoplasm. He identified
it as -
(a) Axon (b) Dentrites (c) Cyton (d) cell body
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40. X Y
(a)X Y
100X
(b)
Y100
X
X
(c)
Y X100
Y
(d)
X Y100
Y
If X is the initial weight of raisins and Y is the weight of
soaked raisins, then
the percentage of water absorbed by raisins is given by -
(a)X Y
100X
(b)
Y100
X
X
(c)Y X
100Y
(d)
X Y100
Y
41.
(i)
(ii)
(iii)
F1, F
2 F
3
(a) F1> F
2> F
3(b) F
2> F
3> F
1
(c) F3>F
1>F
2(d) F
1F
2F
3
A student measured minimum force to slide a wooden block by
pulling itsuccessively by a spring balance towards :(i) right
(ii) left and(iii) frontThe forces measured are F
1, F
2and F
3as shown in the figure the relation between
these forces will be
(a) F1
> F2
> F3
(b) F2
> F3
> F1
(c) F3>F
1>F
2(d) F
1F
2F
3
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42. 100 gwt
50 gwt
(a) 0100 gwt (b) 0250 gwt
(c) 0500 gwt (d) 01000 gwt
If the weight of the wooden block is 100gwt and minimum force
required to justslide it is to be measured by putting two more
weights of 50gwt each on it thenthe spring balance with which most
correct measurement can be done is (a) Range 0100gwt (b) Range
0250gwt(c) Range 0500gwt (d) Range 01000gwt
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