ATOMIC ENERGY CENTRAL SCHOOL-2
ANUSHAKTINAGAR, MUMBAI-94
CONFIDENCE TEST(2015-16)
SUMMATIVE ASSESSMENT – I
Class – IX
Time Allowed : 3 hours
Maximum Marks : 90
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. All questions of Section-A and all questions of Section-B are to be attempted separately.
4. Question numbers 1 to 3 in Section-A are one mark questions. These are to be answered in
one word or in one sentence
5. Question numbers 4 to 6 in Sections-A are two marks questions. These are to be answered
in about 30 words each.
6. Question numbers 7 to 18 in Section-A are three marks questions. These are to be
answered in about 50 words each
7. Question numbers 19 to 24 in Section-A are five marks questions. These are to be
answered in about 70 words each.
8. Question numbers 25 to 33 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.
9. Question numbers 34 to 36 in Section-B are questions based on practical skills are two
marks questions.
SECTION-A
1
Name the following tissues :
(i)
that forms the inner lining of our mouth.
(ii)
present in the brain.
1
2
Name the physical quantity which corresponds to the rate of change of momentum.
3
What is the numerical ratio of average velocity to average speed of an object when it is 1
moving along a straight path ?
How will you separate a mixture of naphthalene balls powder and common salt ? Draw a 2
neat and labelled diagram to show that process.
4
1
5
Why are plants and animals made up of different tissues ?
2
6
It is said that the mass of an object remains constant at all places while weight may change.
Why?
Give reasons for the following :
2
7
(a)
Page 1 of 5
Solids are incompressible
3
(b)
Solids have negligible kinetic energy
8
‘Colloidal solution appears to be homogeneous but actually it is heterogeneous’.
justification for this statement.
9
Give reasons for the following :
Give 3
3
(a)
Camphor disappears if kept in air for a few days.
(b)
Wet clothes do not dry easily on a rainy day.
(c)
We sweat more on a humid day.
10
Identify ABCD to complete the following boxes :
3
11
Differentiate between xylem and phloem tissues.
3
12
The velocity–time graph of a truck is plotted below.
3
13
(a)
Calculate the magnitude of displacement of the truck in 15 seconds.
(b)
During which part of the journey was the truck decelerating ?
(c)
Calculate the magnitude of average velocity of the truck.
An
0.5
Page 2 of 5
3
Name the physical quantity which corresponds to the rate of change of momentum.
unloaded
m/s2.
What
truck
is
weighing
the
2000
maximum
kg
has
acceleration
a
when
maximum
it
is
acceleration
carrying
a
load
of
of
2000 kg.
14
State Newton’s first law of motion. Give its two examples. Why is it called law of inertia ? Explain why 3
it is easier to push an empty box than a box fall of books ?
15
If you divide the total distance travelled on a car trip by the time for the trip, are you
calculating the average speed or the magnitude of the average velocity ?
3
Under what
circumstances are these two quantities the same ? Illustrate with the help of an example.
16
If the mass of a planet is double the mass of earth and if the radius. of the planet is half the radius of 3
earth. Calculate the value of ‘g of the planet.
17
When Ratan came to his native village after passing class X, he talked to panchayat and told
3
them the advantage of growing crops with animal husbandary that can benefit farmers. The
village panchayat shared the information so that it can be implemented on a large scale. They
set up a village dairy where milk from all the houses was collected and then marketed to the
nearby town.
(i)
What can be done to increase the milk output of dairy animals ?
(ii)
Name two exotic breeds of cattle known for their long lactation period.
(iii)
What values are promoted by Ratan who shared the information ?
18
Differentiate between Compost and Vermi Compost ?
3
19
(a)
Explain why the temperature remains constant during sublimation.
5
(b)
Draw a neat and well labeled diagram to show the sublimation of camphor.
20
Which separation techniques you will apply for the separation of the following mixtures –
(a)
Oil from water
(b)
Camphor from sand
(c)
Sodium chloride from its solution in water
(d)
Metal pieces from engine oil of a car
(e)
Cream from milk
5
5
Page 3 of 5
Complete the following table for plants :
21
22
State law of conservation of momentum and prove it using Newton’s third law of motion. A
cricket ball of mass 120 g moving with a speed of 100 m/s pierces through a sack of sand 10
cm thick and comes out with a velocity of 60 m/s. Determine the average force exerted by
sand on the ball.
5
23
(a)
Is freely falling body is the example of non-uniform motion ? If yes, give reason.
5
(b)
A particle is moving along a circular path of radius r with uniform speed. Draw the
directions of velocity and acceleration of the particle, when it is instantaneously at
point P.
24
“Different ways of growing crops can be used to give maximum benefit from crop production 5
management”. Explain any three techniques.
SECTION - B
25
26
Metanil yellow is an adulterant mainly found in :
1
(a)
mustard seeds
(b)
turmeric powder
(c)
wheat, maize, rice
(d)
Pulses
A student wants to test for the presence of metanil yellow adulterant in the given food
material. What should he use from the following to obtain a positive result ?
(a)
channadal and Iodine solution
(c)
arhar dal and conc hydrochloric acid
(b)
1
potato and conc hydrochloric acid
(d) potato and iodine solution
27
A student by mistake mixed iron filing and sulphur powder. He wanted to separate them 1
from each other. The method you would advise him to use is to dissolve the mixture in :
(a)
boiling water
(b)
cold water
(c)
carbon disulphide
(d)
kerosene
28
When iron filings and powdered sulphur are mixed together in a china dish, which statement
is not correct ?
(a)
A heterogeneous mixture is formed.
(b)
The constituents present can be seen easily.
(c)
The constituents can be separated by a magnet.
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1
(d)
29
30
31
A homogeneous mixture is formed.
On heating crystal of copper sulphate in a test tube it is observed that :
(a)
the substance sublimes
(b)
brown fumes are evolved
(c)
a grey mass is formed
(d)
white residue is left behind
1
The temporary mount of onion put cells or human cheek cells is mounted in glycerine because 1
:
(a)
Its stains the material
(b)
Prevents drying the material
(c)
Provides support to cells
(d)
Both (a) and (b)
When stained appropriately, the muscle which shows alternate light and dark bands is :
(a)
striated
(b)
smooth
(c)
Cardiac
(d)
unstriated
1
32
Substances that sublime can be made to liquify by :
(a)
heating them under pressure
(b) cooling them under pressure
(c)
heating under very low pressure (d) cooling them under very low pressure
1
33
If the net external force acting on a body is zero, then total momentum of the body is :
1
(a)
zero
(b)
variable
(c)
constant
(d)
information not sufficient
34
A mixture of sand, powdered glass and common salt is dissolved in water and then filtered. 2
Name the substance left on filter paper. Name the substance in the filtrate.
35
students A, B and C used distilled water at 00C, at room temperature and luke warm 2
respectively. Compare the boiling point of water observed by the three students and give
reason for
To find the boiling point of water, three your answer.
36
While doing an experiment to find out the percentage of water absorbed by raisins a student
recorded the mass of dry raisins as 4.0g and mass of raisins after soaking in water as 7.0g .
Calculate the percentage of water absorbed by raisins .
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