KENDRIYA VIDYALAYA SANGATHAN REGIONAL
OFFICE LUCKNOW
SESSION ENDING EXAMINATION 2024-25
CLASS: IX SUBJECT:
SCIENCE
TIME: 3 HOURS M.
MARKS: 80
GENERAL INSRUCTIONS:
1. This question paper consists of 39
questions in 5 sections.
2. All questions are compulsory. However, an
internal choice is provided in some questions. A student is expected to attempt
only one of these questions.
3. Section A consists of 20 Objective Type
questions carrying 1 mark each.
4. Section B consists of 6 Very Short
questions carrying 02 marks each. Answers to these questions should in the
range of 30 to 50 words.
5. Section C consists of 7 Short Answer type
questions carrying 03 marks each. Answers to these questions should in the
range of 50 to 80 words.
6. Section D consists of 3 Long Answer type
questions carrying 05 marks each. Answer to these questions should be in the
range of 80 to 120 words.
7. Section E consists of 3
source-based/case-based units of assessment of 04 marks each with sub-parts.
|
Q No |
Section-A (20x1
= 20 marks) |
Marks |
||||||||||
|
1 |
Which
of the following is the high yielding variety of cow? (a) Red Sindhi. (b).
Holstein. (c).Dorset. (d).Sahiwal.
|
1 |
||||||||||
|
2 |
When
we change feeble sound to loud sound, we increase its: (a) frequency. (b) amplitude. (c) velocity. (d) wavelength
|
1 |
||||||||||
|
3 |
The
inertia of an object tends to cause the object.: (a) to increase its speed.
(b) to decrease its speed.
(c) to resist any change in its state of
motion. (d) to decelerate due to friction
|
1 |
||||||||||
|
4 |
Which
of the following settle down when allowed to stand on disturbed for sometime? (a) copper sulphate solution.
(b) blood. (c) muddy water. (d)
solution of egg albumin in water
|
1 |
||||||||||
|
5 |
A
scientist observes a plant cell with a large central vacuole and
chloroplasts. Which of the following functions are primarily carried out by
these structures? A) The central vacuole stores water,
and the chloroplasts perform photosynthesis B) The central vacuole stores
proteins, and the chloroplasts store water C) The central vacuole produces
proteins, and the chloroplasts store starch D) The central vacuole stores energy,
and the chloroplasts store proteins
|
1 |
||||||||||
|
6 |
Which
experiment is correct to measure melting point of ice
|
1 |
||||||||||
|
7 |
Roshni
is making temporary amount of Indian peel. What precautions should be taken
to avoid the entry of air bubbles in the slide? (a) cover slip should be gently dropped
over the peel (b) peel should be immersed in stain over
an hour (c) peel should be allowed to fold over
itself once or twice (d) cover slip should be dropped on the
peel from a certain height |
1 |
||||||||||
|
8 |
Lignified,
narrow, elongated and dead cells are found in: (a)
Collenchyma. (b)Phloem. (c) parenchyma. (d) sclerenchyma |
1 |
||||||||||
|
9 |
Usha
swims in a 90 m long pool. She covers 180 m in one minute going either way.
The average velocity is. (a) 30 m/s. (b) zero. (c) 180 m/s. (d) 90 m/s |
1 |
||||||||||
|
10 |
An
atom with three protons and four neutrons will have the Valency of. (a) 4. (b) 1. (c) 7. (d) 3 |
1 |
||||||||||
|
11 |
What
is the correct symbol of Sodium (a). Na. (b).
N. (c) S. (d) Se |
1 |
||||||||||
|
12 |
Correct
formula of calcium carbonate (a) CaC2. (b) CaO. (c) Ca2O. (d) CaCO3 |
1 |
||||||||||
|
13 |
Nerve
cell does not contain (a) Axon. (b) Nerve endings. (c) dendrites. (d) tendon |
1 |
||||||||||
|
14 |
The
speed of a car weighing 1500 kg increases from 36 km/h to 72 km/h uniformly.
What will be the change in momentum of the car? (a) 15000 kg
km/h (b) 15000 kg m/s. (c) 54000 kg
m/s (d) 54000 g m/s |
1 |
||||||||||
|
15 |
Weeds affect
the crop plants by (a) killing
of plants in the field before they grow (b) providing
nutrients to grow (c)
competing for various resources of crops (plants) causing low availability of
nutrients (d)
all of the above.
|
1 |
||||||||||
|
16 |
Poultry
fowl are susceptible to the following pathogens (a)
Viruses. (b) Bacteria. (c) Fungi (d) All of the above |
1 |
||||||||||
|
|
DIRECTIONS: In the
following questions 17 -20, a statement of assertion (A) is followed by a
statement of reason (R). Mark the correct choice as:
(a) Both assertion (A) and reason (R)
are true and reason (R) is the correct explanation of assertion (A). (b) Both assertion (A) and reason (R)
are true but reason (R) is not the correct explanation of assertion (A). (c) Assertion (A) is true but reason
(R) is false. (d) Assertion (A) is false but reason
(R) is true. |
|
||||||||||
|
17 |
Assertion: Ultrasonic
waves are used in medical imaging. Reason: Ultrasonic
waves have high penetrating power and can pass through tissues. |
1 |
||||||||||
|
18 |
Assertion: A football
has lesser inertia than a stone of the same size. Reason: Massive
object has less inertia. |
1 |
||||||||||
|
19 |
Assertion (A): Epithelial tissues are tightly
packed and form a protective barrier. Reason (R): Epithelial
tissues have a high rate of cell division to replace damaged cells. |
1 |
||||||||||
|
20 |
Assertion : Milk is an aerosol Reason : Milk
contains fat as dispersed phase and water as dispersion medium |
1 |
||||||||||
|
|
Section - B (6x2
= 12 marks) |
|
||||||||||
|
21 |
When
a force of 40 N is applied on a body it moves with an acceleration of 5 ms-2.
Calculate the mass of the body. |
2 |
||||||||||
|
22 |
Helium atom has atomic mass of 4u
and has two protons in its nucleus. What is the atomic number of He and how
many neutrons does it have? |
2 |
||||||||||
|
23 |
Why does a
dessert cooler cool better on a hot dry day? OR Liquids and
gases can be compressed but it is difficult to compress solids. Why? |
2 |
||||||||||
|
24 |
(a) Name the
cell organelles that contain their own genetic material. (b)Write the
function of vacuoles in a plant cell. |
2 |
||||||||||
|
25 |
Draw
the distance-time graph for a uniform and non-uniform motion. |
2 |
||||||||||
|
26 |
The mass of
the earth= 6 ×1024 kg and of the moon = 7.4x1022kg. The
distance between the earth and moon is 3.84x105 km. Calculate the
force exerted by the earth on the moon. (take G=6.7x10-11 N m2 kg-2) OR What is the
difference between the mass of an object and its weight?
|
2 |
||||||||||
|
|
Section - C (7x3 = 21 marks) |
|
||||||||||
|
27 |
Draw a well labelled diagram of
an animal cell. |
3 |
||||||||||
|
28 |
Differentiate between parenchyma, collenchyma and
sclerenchyma |
3 |
||||||||||
|
29 |
(a)Which wave property determines (a)
loudness, (b) pitch? (b) Calculate the wavelength of a sound wave whose frequency is 220 Hz
and speed is 440 m/s in a given
medium. OR (a) What is reverberation? (b) Why are the ceilings of concert halls curved? |
3 |
||||||||||
|
30 |
(a) What will be the state of water at 108o C? (b) Give reason why water is liquid at room temperature? |
3 |
||||||||||
|
31 |
(a) What is an ion? (b)Give example of a cation and an anion . (c)Write the formula of carbon tetrachloride. |
3 |
||||||||||
|
32 |
How do you differentiate between capture fishing, maricultural and
aquaculture? OR (a)What are the desirable agronomic characteristics for crop
improvements? (b)Name any two macronutrients required by the plants. |
3 |
||||||||||
|
33 |
A car accelerates uniformly from 18 km/h to 36 km/h in 5s. Calculate:
(i) the acceleration (ii) the distance covered by the car in that time |
3 |
||||||||||
|
|
Section - D (3x5
= 15 marks) |
|
||||||||||
|
34 |
Look at the diagram
carefully and answer the following questions: a.
Identify this vascular tissue present in plants. b.
Write its function. c.
Name the cells present in this tissue.? d.
Which tissue transports water in plants? e.
Why are xylem and phloem called complex permanent tissues? |
5 |
||||||||||
|
35 |
Draw
the structure of an atom which has two electrons in its outermost shell M.
Write the atomic number of the element? Also mention its name, Electronic
configuration, Valency and calculate number of neutrons. |
5 |
||||||||||
|
36 |
a) The potential
energy of a freely falling object decreases progressively. i) Does this variation in potential energy
violate the law of conservation of energy? ii) What is the sum total of kinetic
energy and potential energy called? b) A mass of
10 kg falls from a height of 50cm. Calculate (i)Velocity of the body.
(ii) Kinetic energy of body when it just reaches the ground level. (Take g=10
m/s2) |
4 |
||||||||||
|
|
Section
- E (3x4 = 12 marks) |
|
||||||||||
|
37 |
Read the following
CASE-STUDY based passages and answer the questions- Roshan made three different
solutions using samples of copper Sulphate, Milk and Wheat flour in 100 mL of
water in three separate beakers naming X,Y and Z respectively. He left the
three beakers undisturbed for some time. Then he passed a beam of light
through them one by one and noted down his observations. Later, he also
filtered the three mixtures using filter paper as shown below: a) What type of
solution is prepared in Beaker –
Y? b) Is solution
in Beaker Z stable? c) In which solution
no residue is found on the filter paper? d) Which of these solutions has particle size less than 1nm- X
or Y? |
4 |
||||||||||
|
38 |
Plant and animal cells
have several differences and similarities. For example, animal cells do not
have a cell wall or chloroplasts but plant cells do. Plant cells unlike
animal cell usually have very few but large central vacuole taking up to
almost 60% of cell volume. Plant and animal cells
are both eukaryotic cells, so they have several features in common, such as
the presence of a cell membrane, and cell organelles, like the nucleus,
mitochondria and endoplasmic reticulum. a.
Which cell organelle controls all cellular activities? b.
Name the cell organelle found in Plant cell which helps to
carry out photosynthesis. c.
Name the cell organelle(s) present in only plant cell and not in
animal cell. d.
What
happens when raisins are kept in Hypotonic solution for few hours? |
4 |
||||||||||
|
39 |
The following table
shows the weights (W) of objects of equal volume immersed in water
(having density = 1000 kg/m3), observe the table and answer the
questions that follow. [Given g = 9.8 m/s2]
a- On which object is
the maximum Buoyant force (up thrust) exerted by water? b- If object C floats
inside water (while completely immersed in it), what is the up thrust acting
on it? c- State the principle
based on which the up thrust acting on an object is obtained. d- A body of mass 2500
kg and volume 5 m3 is placed on water surface. Will it float or
sink in water? |
4 |
No comments:
Post a Comment