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SUMMATIVE ASSESSMENT – I, 2014
SCIENCE -SET- 2
Class – IX
Time Allowed : 3 hours
Maximum Marks : 90
General Instructions :
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The question paper comprises of two Sections, A and B. You are to attempt both the sections.
All questions are compulsory
All questions of Section-A and all questions of Section-B 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 to 6 in Sections-A are two marks questions. These are to be answered
in about 30 words each.
Question numbers 7 to 18 in Section-A are three marks questions. These are to be answered
in about 50 words each
Question numbers 19 to 24 in Section-A are five marks questions. These are to be answered
in about 70 words each.
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.
Question numbers 34 to 36 in Section-B are questions based on practical skills are two marks
questions.
SECTION-A
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Name the type of tissue present in the lining of oesophagus and the mouth.
While playing football the goalkeeper didn’t get sufficient time to stop a fast ball shot towards
him. Why did he hurt his hand while doing so?
A particle moves over three quarters of a circle of radius r. Find the distance travelled by it.
Rohit added small amount of common salt to water taken in a graduated cylinder, on
dissolution there was no detectable change in the level of water. Explain why is it so ?
How do vegetables remain fresh on being sprinkled with water? Explain
Calculate the force of gravitation between two objects of masses 50 kg and 120 kg respectively
kept at a distance of 10 m from one another.
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(Take gravitational constant G6.710 11 Nm2 kg 2)
Differentiate between, an element and a compound, (any two points). With one example each. 3
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(a)
Identify two non-metals from the following elements i.e. Carbon, Sodium, Chlorine,
Neon, Platinum.
(b)
Name the appropriate methods to separate nitrogen from air.
(c)
Identify dispersed phase and dispersion medium in foam and rubber.
When a fine beam of light enters a room through a small hole, tyndall effect is observed. Why 3
does this happen? Give one more example where this effect can be observed.
Tabulate the difference between nucleoid and nucleus giving three points.
Why are ‘simple permanent tissues’ called so? Name the different types of simple permanent
tissues?
The brakes applied to a car produce an acceleration of 6 m/s2 in the opposite direction to the motion.
If the car takes 2 s to stop after the application of brakes, calculate the distance it travels during this
time.
On a 120 km long railway track, a train travels the first 80 km at a uniform speed of 160 km/h.
Calculate the speed with which the train should move rest of the track so as to get the average
speed of 80 km/h for the entire trip.
(i)
Define mass and weight.
(ii)
Write their SI units.
(iii)
Distinguish between the two quantities.
Give reasons :
(i)
A piece of paper takes much longer to fall than a stone through the same distance.
(ii)
The mass is constant everywhere whereas the weight keeps changing.
(iii)
The value of ‘g’ keeps changing as we move away from the earth whereas value of ‘G’ remains
constant all over the universe.
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(a) How are average speed and average velocity obtained? Mention the situation in which average
velocity can be zero but not the speed.
(b) Mention the quantities measured by the following devices in a car.
(i)
Speedometer
(ii)
Odometer
17
When Ashok visited his Village he observed that villagers were suffering from malnutrition. To 3
curb malnutrition in the village he suggested them to select five or six fish species in a pond.
The villagers were surprised to see this increased the fish yield from the pond. They thanked
Ashok and asked him to help them get pure fish seed for the other two ponds in the village.
(i)
What name is given to this intensive fish farming?
(ii)
Write the basis on which the different fish species are selected?
(iii)
Ashok’s initiative is worth praising. Give two reasons.
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(a)
(b)
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(a)
(b)
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Name the major nutrient which we get from fish.
Mention the two ways of obtaining fish.
Define Melting point.
Explain why temperature remains same during melting of ice. (Draw diagram
showing conversion of ice into water)
Write your observations when the following processes take place
(a)
an aqueous solution of sugar is heated to dryness.
(b)
a saturated solution of potassium chloride prepared at 60C is allowed to cool
at room temperature.
(c)
a mixture of iron filings and sulphur powder is heated strongly.
(d)
A beam of light is passed through a colloidal solution.
(e)
dil – HCl is added to the mixture of iron and sulphur.
Name two simple permanent tissues which have living cells. Write two distinguishing features
of each. Mention their location and functions.
(a)
State Newton’s second law of motion and derive its mathematical formulation.
(b)
Give reason for the following :
(i)
As compared to mud floor we hurt more if we fall on a cemented floor. Why?
(ii)
It is difficult to hold a hose which ejects large amounts of water at a high velocity.
(a)
Draw a position-time graph for an object in uniform motion. Show that the slope of the
position-time graph gives the velocity of the object.
(b)
Two bikers start at the same point and drive in a straight line for 5 km. At the end of
the drive their distances are the same but their displacements are different. Explain how
this could happen. Illustrate with a diagram.
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24
Define ‘Hybridisation’.
Explain the three types of cross-breeding practiced during 5
hybridisation? What do you mean by genetically modified crops?
25
A student added two drops of iodine solution to a given rice extract in test 1
tube A.
Another student added a little rice extract to iodine solution in test
tube B. they would then observe.
(a)
a change in colour to blue black in test tube A but not in test tube B
(b)
a change in colour to blue black in test tube B but not in test tube A.
(c)
a change in colour to blue black in both test tubes A and B.
(d)
no change in colour in any of the test tubes.
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Yellow brown colour is the colour of a reagent named :
(a)
dil HCl
(b)
safranin
(c)
Iodine solution
(d)
dil sodium hydroxide
What is the correct description of ‘X’, Y and Z in the following figure related with the heating 1
of a substance?
SECTION - B
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(a)
(b)
(c)
(d)
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XTest Tube, YBurner, ZTest tube holder.
XTest tube holder, YBurner, ZTest tube.
XTest tube holder, YTest tube, ZBurner.
XTest tube, YTest tube holder ZBurner.
28
A black mass of Iron sulphide is crushed into powdered form and taken on a watch glass. When 1
a magnet is brought near the powdered black mass of Iron sulphide, then :
(a)
whole compound of Iron sulphide, will be attracted towards magnet.
(b)
only Iron will be attracted towards magnet.
(c)
only sulphur will be attracted towards magnet.
(d)
black mass of Iron sulphide will be unaffected.
29
When
gas,
(a)
(b)
(c)
(d)
a burning match stick is brought near the mouth of the test tube containing hydrogen
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white dense fumes are formed
the gas smells with pungent odour
a ‘pop’ sound is heard
reddish fumes are formed
30
The parts of the cells that can be seen when a thin peel of onion is observed under a compound 1
microscope are
(a)
cell wall, mitochondria, chloroplasts
(b)
cell wall, cytoplasm, nucleus
(c)
cell wall, vacuole, chloroplast
(d)
cell wall, mitochondria, cytoplasm
31
After observing the slides of striped muscle fibres, students were asked to write the 1
characteristics of striated muscles. Correct observation would be that the cells of these tissues
are :
(a)
multinucleate and unbranched
(b)
uninucleate and spindle shaped
(c)
uninucleate and branched
(d)
multinucleate and branched
1
The technique of sublimation is used to separate :
(a)
Two non-volatile substance.
(b)
Two volatile substances.
(c)
Such solid substance which sublimes on heating from the non-volatile
substance.
(d)
Two solid substances which have little affinity with each other.
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33
If the net external force acting on a body is zero, then total momentum of the body is :
(a)
zero
(b)
variable
(c)
constant
(d)
information not sufficient
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34
State the method by which we can prepare colloid of starch.
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35
In an experiment to determine the boiling point of water, the stop watch used to note down the 2
temperature of water at different intervals of time has 20 divisions between 0 to 10s marks. Find
the least count of the stop watch.
36
A student recorded the mass of dry raisins as 6.0g and mass of raisins after soaking them in
water for about four hours as 10.5g. Calculate the percentage of water absorbed by raisins.
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