GGP2HYQ
SUMMATIVE ASSESSMENT - 11(2014-15)
SCIENCE Class - IX
Time allowed: 3 hours
Maximum Marks: 90
General Instructions:
(i)
The question paper comprises of three Sections, A, Band C. You are to attempt all the sections.
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
(viii)
(ix)
(x)
(xi)
All questions are compulsory.
There is no choice in any of the questions.
All questions of Section-A, Section-B and Section-C are to be attempted separately.
Question numbers 1 to 3 in Section-A are one mark questions. These are to be answered in one
word or in one sentence.
Question numbers 4 and 5 in Section-A are two marks questions. These are to be answered in
about 30 words each.
.
.
Question numbers 6 to 16 in Section-A are three marks questions. These are to be answered in
about 50 words each.
Question numbers 17 to 21 in Section-A are five marks questions. These are to be answered in
about 70 words each.
Section B has 3 OTBA questions. Question number 22 is two marks, Question number 23 is
three marks and Question number 24 is five marks question.
Question numbers 25 to 33 in Section-C 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.
Question numbers 34 to 36 in section C are two marks questions based on practical skills. These
are to be answered in about 30 words each.
SECTION-A
1
Four samples of water are collected from different sources. Each sample on analysis was
found to contain same percentage of oxygen.
Which law of chemical combination is demonstrated by the above observation?
2
Why did Rutherford select gold foil for his a-particle scattering experiment
3
Define Health.
1
4
Differentiate between thrust and pressure. List two points of difference.
2
5
Calculate the work done by the force of gravity when a 30 kg child falls from the top of a 6 m
high wall. (Given g = 10 m/ S2)
2
Page 1 of 7
?
1
1
6
7
ignificance of the symbol of an element (two points). Find the incorrect symbols
ments given and correct them:
._-drogen - HY
Carbon - Ca
Gold- AU
Potassium - Po
C m
ition of the nuclei of two atoms X and Y are given below:
X
3
3
Y
tons
4
4
_ eutron
4
6
(i)
Give the mass number of X and Y.
(ii)
Mention the relationship between the atoms.
T
Define polyatomic ion. Write two examples along with their formulae.
9
3
3
Write any three concrete examples of the characteristics that are used for a hierarchical
classification.
10
I te th e grven t abl e:
Compie
Causative organism
Disease
Dengue fever
(a)
_(c)_
Vibrio cholerae
(d)
Common cold
HIV
Virus
3
Mode of transmission
(b)
Contaminated
food
water
_(e)_
-(f)-
and
3
11
An organism' A' has a notochord, a dorsal nerve cord and is triploblastic, coelomate.
(i)
State the phylum of animal' A'.
(ii)
State the class of' A', if it is warm blooded and gives birth to young ones.
(iii) How many chambers are there in its heart?
12
Calculate the kinetic energy of a truck of mass 1000 kg moving with a velocity of 54 kmz'h.
Find the kinetic energy if the velocity of the truck becomes two times.
13
3
(a)
(b)
Page 2 of 7
3
'rite the S1unit of density.
What is the meaning of the statement, the relative density of gold is 19.3 ?
14
3
(a)
(b)
(c)
Which wave property describes:
(i)
Pitch (ii)
Loudness
Give their SI units.
Define quality or timber.
What is meant by audible range of sound? Mention the range of frequency above
which human beings cannot hear the sound produced.
How bats can detect their prey in dark?
3
16
Rashmi was playing on a swing in a park. To increase her speed when her swing was at its
lowest position during its oscillations she pushed the ground hard with her feet. She enjoyed
it but could not understand the mechanism. Her elder brother Pankaj explained her the
reason, when she asked him.
(i)
What type of energy was possessed by Rashmi while swinging? On what factors does
it depend?
(ii)
Why did the swing's speed increase on pushing the ground harder with feet?
(iii)
Why and what did Rashmi ask Pankaj ?
3
17
(a)
Atom is considered electrically neutral. Explain.
State the valency ·ofHelium.
If an atom has atomic mass 4 and 2 protons in its nucleus, how many neutrons does it
have?
5
15
(a)
(b)
(b)
(c)
18
Give the appropriate term for each of the following:
(a)
complex sugar that makes the fungal cellwall.
(b)
naked seeds.
(c)
blue-green algae.
(d)
basic unit of classification.
(e)
0 oup of unicellular eukaryotic organisms.
5
19
Associate the following diseases/infections
(a)
Sleeping sickness
(b)
(c)
ala-azar
(d)
(e)
AIDS
(f)
(g)
Malaria
(h)
with their causative agents:
SARS
Acne
Dengue fever
Brain fever
5
(i)
Chicken-pox
Polio
(a)
Derive an expression for gravitational potential energy possessed by an object of mass
In at a height h. Also state the SI unit of potential energy.
A ball of mass 400 g is thrown vertically upwards to a height of 25 m from the ground.
Find the potential energy possessed by it at the highest point. (g = 10 m/ S2) What will
L
(j)
5
20
(b)
Page 3 of 7
be its KE at the highest point. Give reason for your answer.
21
5
(a)
Define relative density of a substance.
(b)
The relative density of Aluminium is 2.7. What is its density in 5.1. system?
(c)
The volume of a 50 g of a substance is 20 cm-'. If the density of water is 19j cm3, will
the substance float or sink ?
SECTION - B (OTBA)
(* Please ensure that open text of the given theme is supplied with this question paper.)
Theme: Understanding the Environment of Mars
22
Explain the working of a Biogas plant.
2
Inlet
Ga
+ Fertilizer
•....
-~....
--•...•....•
.........
~~- ~-...
..
..~-,...,-.~~
,~ ..
..
..
~~
..
.....
::::!Scum:::::
•
••.•.•
•••• ., •••
"It
11: •..•••.••
"
l
•.••.
11,. •.•.••.••••••
It., •.•••..• ., •. , •••••••••
t,
:C~~p··
. , ..t '~k:~.
..
..~.~
...••......
23
Design a poster to create an awareness among people about the various types of dustbins that
could be used for different types of garbage.
3
24
Community sanitary complexes and Sulabh Shauchalayas have reduced the practice of 5
defecation in the open. Do you agree with this statement? Give reasons.
Section - C
25
Page 4 of 7
When a sound wave falls on an obstacle of large size, it gets bounced back into the same
medium. This phenomenon is known as :
(a)
refraction
(b)
reflection
(c)
diffraction
(d)
deviation
1
26
1
A stud nt is doing an experiment to find the pres ure exerted by an iron cuboid of mass 10kg
22) :
as shown below (g510ms
.r----'--------"
(4cm)
(10 em)
(5cm)
The pressure exerted by the cuboid on the ground is :
(a)
53104Pa
(b)
23104Pa
4
(c)
4.5310 Pa
(d)
33104Pa
If slinky is not available out of which of the following materials would you like to perform on
27
28
experiment on speed of pulse?
(a)
Cotton
(c)
Wool
(b)
(d)
Silk
Both (a) and (c)
Non - flowering plants belong to:
(a)
1onocotyledonous
(c)
Cryptogams
(b)
(d)
Dicotyledonous
Phanerogams
(a)
Conservation of mass
(b)
Constant proportions
(c)
Definite proportions
(d)
of 7
1
Reciprocal proportions
16.8g sodium hydrogen carbonate is added to 12.0g of acetic acid. The mass of carbon dioxide
produced in the reaction is:
30
Page 5
1
Mass can neither be created nor be destroyed in a chemical reaction, it is the law of:
29
1
(a)
10.0g
(b)
8.8g
(c)
1~.8g
1
(d)
31
34.8g
Which of the following statement is correct in respect of dicotyledonous plant?
1
(a) Reticulate venation, one cotyledon and tetramerous flower.
(b) Reticulate venation, two cotyledons and pentamerous flower.
(c) Parallel venation, two cotyledons and dimerous flower.
(d) Parallel venation, one cotyledon and trimerous flower.
32
Flowers of a monocotyledonous plant are:
(a)
Bimerous
(b)
(c)
Tetramerous
(d)
1
Trimerous
Pentamerous
33
How many stages of the life cycle of a mosquito are spent in water?
(a)
one
(b)
two
(c)
three (d)
four
1
34
Look at the figure of a graduated cylinder given below and answer the question that follows:
2
90
80
70
60
50
40
3('
2(1
Ie
(a)
(b)
35
Page 6 of 7
What is the range of the device?
Calculate the least count of the device.
A student took solid bodies of different shapes, sizes and materials and noted down the
apparent loss in weight on partially or fully immersing the bodies in different liquids. Based
on the observations he wrote the following conclusions. Which conclusion is incorrect and
why?
(a)
Upthrust depends upon the volume of the body immersed and density of liquid.
(b)
When the body is fully immersed upthrust increases as body goes deeper and deeper
inside the liquid
2
(c)
(d)
36
Page 7 of 7
Upthrust depends upon the density of the liquid and acceleration due to gravity.
Upthrust does not depend upon the shape of the vessel in which liquid is filled.
Compl te the following table:
Organism
S.No
Class
1.
Bird
2.
Bony Fish
2
One feature of phylum