# The Kashmir Valley School by co2Sqr

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```									                                  The Kashmir Valley School
Branch of Tyndale-Biscoe & Mallinson School

SELF EVALUATION PAPER ON THE ASSIGNMENTS I & II
CLASS: IX
MATHEMATICS
Heron’s Formula              Exercise 12.1 to Exercise 12.2
Quadrilaterals               Theorem 8.1 to Theorem 8.8
Exercise 8.1
Theorem 8.9 & Theorem 8.10
Exercise 8.2
Circles                      Exercise 10.1
Theorem 10.1 & Theorem 10.2
Exercise 10.2
Theorem 10. 3 to Theorem 10.5
Exercise 10.3
Theorem 10.6 & Theorem 10.7
Exercise 10.4
Theorem 10.8 to Theorem 10.12
Exercise 10.5
Areas of Parallelograms and Triangles
Exercise 9.1
Theorem 9.1
Exercise 9.2
Theorem 9.2 & Theorem 9.3
Exercise 9.3
Logarithms                   Exercise 4.1 to Exercise 4.8

PHYSICS
FLOTATION

Q1:-    What is meant by upthrust or buoyant force and the factors on which it depends ?
Q2:-    Definition of Pressure and its units.
Q3:-    Explination of everyday observation on the basis of pressure.
Q4:-    Why objects float or sink when placed on the surface of water ?
Q5:-    A block of plastic is released under water. This block comes to the surface of water and never stays
under water. Explain, Why?
Q6:-    What is Archimede’s principle and what are its applications ?
Q7 :-   What is the physical meaning of relative density ?

SOUND

Q8:-    What is Sound and how is it produced?
Q9:-    How could you say that wave transfers energy and not the matter?
Q10:-   How does a sound wave propagates?
Q11:-   What are the characteristics of a sound wave?
Q12:-   Differences between longitudinal and transverse wave.
Q13:-   What is the effect of temperature on the speed of sound?
Q14:-   Explain the following
a) Echo
b) Reflection of sound
c) Reverberation
Q15:-   What do you mean by audible range?
Q16:-   What are the applications of ultrasonic waves?
Q17:-   What is a SONAR ? How is the depth of a sea determined by it?
Q18:-    Draw the diagram of a Human Ear and explain its working.

NUMERICALS

Q19:-   A sealed tin of coca-cola of 400g has a volume of 300cm3. Calculate the density of the Tin.
Q20:- A person weighs 60 Kg. The area under one foot of the person is 180 cm2. Find the pressure exerted
on the ground by the person.
Q21:- Relative density of silver is 10. Find the density of silver.
Q22:- A rock at a bank of a coast is struck by water waves. Find the frequency of the waves
striking the rock, if the distance between two consecutive crests or troughs is 50 metre.
Given velocity of water wave is 50m/s.
Q23:- A sound wave transmitted from the ship wave reflected from the sea bed and heard after 4
seconds. Find the depth of the sea, if velocity of sound in water is 1500m/s .

BIOLOGY

UNDERSTAND THE CHAPTERS “NATURAL RESOURCES” AND “IMPROVEMENT IN FOOD
RESOURCES” THOROUGHLY AND MAKE NOTES OF THE FOLLOWING
NATURAL RESOURCES
 Abiotic components and its types.
 Biotic components and adaptations in plants and animals.
 Biogeochemical cycles.
 Balance in environment
IMPROVEMENT IN FOOD RESOURCES
 Crop production and crop seasons.
 Improvement in yield and nutrient management.
 Manures and fertilizers.
 Irrigation and mixed/intercropping.
 Crop rotation and protection management.
 Animal husbandary/ poultry farming/ fish production/ bee keeping.

CHEMISTRY

UNDERSTAND THE CHAPTER “STRUCTURE OF ATOM” THOROUGHLY AND MAKE NOTES OF THE
FOLLOWING.

   Discovery of Electron, Proton and Neutron.
   Structure of atom.
   Rutherford’s Model of the atom.
   Bohr’s Model of the atom.
   Atomic and mass number.
   Valency of Elements.
   Isotopes, radio active isotopes and isobars.

ENGLISH

Read and understand the following chapters and answer the questions given in the book, do all the exercises
related to the given chapters.

Prose: How a client was saved.
Short story: The Happy Prince
Play: If I Were You
Write summary of
Palanquin Bearers
The Child’s Prayer
Practice essay writing, letter writing and dialogue writing (5 topics each)
Practice changing narration of different types of sentences.

SOCIAL STUDIES
Read the following chapters very carefully, understand it and attempt all the textual questions in your
notebooks.
History
1. Beginning of Modern Age
Make notes on these topics:
a) Renaissance         b) Reformation        c) Exploration, discovery and trade
d) Rise and growth of nation states          e) The Glorious Revolution of 1688
f) Struggle against absolutism

2. The Industrial Revolution
Make notes on these topics:
a) The Industrial Revolution in England       b) Consequences of the Industrial Revolution

Civics
Read the following chapter very carefully, understand it and attempt all the textual questions in your notebooks.
1. Local Government -
Geography

Read the following chapter very carefully, understand it and attempt all the textual questions in your notebooks.
1. Population (Map work included)
Hindi

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