CBSE Class 9 Science Sample Paper 2017 (2)

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CBSE Class 9 Science Sample Paper 2017 (2). It’s always recommended to practice as mane sample papers as possible before the examinations. Students can download the sample papers and also question papers of previous years to practice and score better marks in examinations. Refer to other links too for more sample papers.

SECTION – A

Q.1 What is immunisation? (1)

Q.2 Give the formula of the compound that will be formed by the element magnesium

and oxygen.

(1)

Q.3 If Z=3, what would be the valency of the element? Also name the element. (1)

Q.4 Why does the sound travels faster in summer season than in winter season ? How is

sound produced?

(2)

Q.5 State the law of conservation of energy. Identify the energy possessed by a rolling

stone.

(2)

Q.6 A 5 kg ball is thrown upward with a speed of 10 m/s. (g=10 m/s2)

a) Calculate the maximum height attained by it.

b) Find the potential energy when it reaches the highest point.

(3)

Q.7 a) Why do buildings have wide foundations?

b) Give two applications of Archimedes’ principle.

(3)

Q.8 a) Establish relationship between speed of sound, its wavelength and frequency.

b) State two factors on which speed of sound depends.

(3)

Q.9 a) Give the SI unit of relative density.

b) A body of mass 20 kg is placed on a 2 m2 area. Find the pressure exerted.

(3)

Q.10 Mr. Ravi Bushan, father of Mr. Atul was hard of hearing. Doctor advised him to use

hearing aid after diagnosing his ears. But he was not ready to listen to the advice of

the doctor because he felt that hearing aid is a machine and would cause harm to

him. Mr. Atul told his father that hearing aid is not harmful, rather it would help him.

Finally, Mr. Ravi decided to have the hearing aid.

a) What values are shown by Mr. Atul?

b) On what principle, hearing aid works?

(3)

Q.11 Give one point of difference between :

a) Bony fish and Cartilaginous fish.

b) Bilateral and Radial Symmetry.

c) Diploblastic organism and Triploblastic organism.

(3)

Q.12 a) Differentiate between the following in at least one point:

i) Acute disease and Chronic disease.

ii) Congenital and Acquired disease.

b) Name one disease caused by bacteria and virus.

(3)

Q.13 Describe two important characteristics of Thallophyta, Bryophyta and Pteridophyta. (3)

Q.14 A flask P contains 0.5 mole of oxygen gas. Another flask Q contains 0.4 mole of

ozone gas. Which of the two flasks contain greater number of oxygen atom?

(3)

Q.15 a) Give the schematic atomic structures of chlorine atom and chloride ion.

b) Explain why chloride ion is more stable than chlorine atom?

(3)

Q.16 a) Mention two uses of isotopes in the field of medicine.

b) What term is used to describe the relation between the following pair of atom

40Ar

18

40Ca

20

(3)

Q.17 a) Write any two differences between transverse and longitudinal waves.

b) Why are sound waves called mechanical waves?

c) A sound wave travels at a speed of 399 m/s. If its wavelength is 1.5 m, what is

the frequency of the wave? Will it be audible?

(5)

Q.18 a) What is reverberation?

b) Why are the ceilings of concert halls curved?

c) What is meant by reflection of sound?

(5)

Q.19 a) Rewrite the scientific name ‘panthera tigris’ correctly.

b) Which one do you think is a more basic characteristic for classifying organisms?

i) the place where they live.

ii) the kind of cell they are made up of . Why?

c) Name the scientist who gave ‘five kingdom classification’. Write two characters

of kingdom Monera with an example.

(5)

Q.20 a) Write the ‘Principles of treatment’ that are generally followed by a doctor to

treat an infectious disease.

b) What do you mean by symptom of a disease?

(5)

Q.21 a) The composition of two atomic particle is given by :

X Y

Proton 8 8

Neutron 8 9

Electron 8 8

i) What is mass number of X ?

ii) What is mass number of Y ?

iii) What is the relation between X and Y ?

iv) Which element / elements do they represent ?

b) Write the conclusions drawn by Rutherford in his a-ray scattering experiment?

(2+3)

SECTION – B

Q.22 Write the role of government played in drought risk management. (2)

Q.23 Write three human factors involved in leading to condition of drought. (3)

Q.24 What are the life lines for all the living beings? Write the factors leading to death of

our life lines.

(5)

SECTION – C

Q.25 Sound wave is –

a) transverse in nature b) both transverse and longitudinal

c) longitudinal in nature d) none of these

(1)

Q.26 The pressure exerted by a solid decreases with the increase of –

a) force b) momentum c) area d) velocity

(1)

Q.27 What is the velocity of the pulse of the slinky indicated in the figure given below? (1)

Given that pulse took 4 seconds to travel from A to B and then back to A :

a) 5 m/s b) 10 m/s c) 2 m/s d) 20 m/s

 

Q.28 This is a figure of the female cone. This is found in :

a) capsule of moss b) annulus of mushroom

c) fruit of pineapple d) branches of Pinus

(1)

Q.29 Which of the following is a monocot?

a) mustard b) pea c) bean d) bamboo

(1)

Q.30 Black dot-like structures seen in the underside of fern leaflets are –

a) seeds b) sori c) sporophylls d) gametophyte

(1)

Q.31 Out of the various stages in the life cycle of a mosquito in which stage mosquito is

‘comma shaped’ (head and thorax rolled) and they do not feed.

a) egg b) larva c) pupa d) adult

(1)

Q.32 Barium sulphate is –

a) Yellow in colour b) Grey in colour

c) White in colour d) Black in colour

(1)

Q.33 To verify the law of conservation of mass in case of a chemical change, sodium

sulphate and barium chloride should be used in the form of :

a) fine powder b) large crystals

c) molten liquid d) aqueous solution

(1)

Q.34 An object of mass 500 gm is immersed into a measuring jar containing water. The

initial level of water in the measuring jar is 50 cc. Due to the immersion of the

object, the water level in the measuring jar reaches to 100 cc. Calculate the mass of

the water displaced due to the immersion of the object.

(2)

Q.35 An object is suspended with a string which gets stretched. When the object is

completely immersed in water, the extension of thread decreases. Explain why it

happens.

(2)

Q.36 Mention two adaptive features of birds to the aerial mode of life. (2)

 

Please click the link below to download CBSE Class 9 Science Sample Paper 2017 (2).

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