Published by :

Fax :website :email :

Ph.:

with Complete SolutionsQUESTION BANK

CLASS 9

Strictly as per the Latest Syllabus and DesignPrescribed by SCERT Kerala Education Board

KERALA SSLC

FOR2017

EXAM

PHYSICS(PART – 2)Based on Latest SCERT Textbook issued by Department of Education, Government of Kerala in 2016

Includes Onam Question Paper issued by Academic Council along with Scheme of Evaluation

Disclaimer : Oswaal Books has exercised due care and caution in collecting the data before publishing this book. Inspite of this if any omission, inaccuracy or printing error occurs with regards to the data contained in this book, Oswaal Books will not be held responsible or liable. Oswaal Books will be grateful if you could point out any such error or your suggestion which will be of great help for other readers.

© Publisher

1/11, Sahitya Kunj, M.G. Road, Agra - 282002 (UP) India

0562 - 2857671, 2527781

0562 - 2854582, 2527784

Contact@oswaalbooks.com

www.OswaalBooks.com

OSWAAL BOOKS

Published By :

TO BUY THESE BOOKS VISITALEPPEY S.T. Reddiar & Sons Book Depot, (0477) 2263396ALAPPUZHA Vidyarambham Publishers, (0477) 226151ALUVA The Book Corner, (0484) 2629904CALICUT Arya Books, (0495) 4013660 Aman Book Stall, (0495) 3048187, 2721282 Aathira Book Stall, (0495) 4022316 H & C Store, (0495) 2720620CHANDRAPURA I. Q. Plus Book, 09037004826CHANGANASSERY S. H. Book World, 09447182125 Southern Book Stall, 09544673507 Priya Book Center, (0481) 2576192CHENGANNUR Galaxy Books, 09747783281ANGAMALY Basil Books, 09400092925ERNAKULAM Asad Book House, (0484) 2370431 Academic Book House, (0484) 2376613 H & C Store, (0484) 2377235 Orbit Book Centre, (0484) 2382758 Surya Book Centre, 09847238314 Surya Book House, (0484) 2363721JOMER NILAYAM H & C Store, (0484) 2350128 UBS Publisher & Dist., (0484) 2353901KADAVANTHRA H & C Stores, (0484) 2203683KALAMASSERY Moulavi Books, (0484) 2541786KANNUR Athulya Books, (0497) 2709294 Book Land, 09847794820 H & C Store, 09387848666 Jambo Books, (0497) 2712433 Mustafa, (0497) 2769809KASARAGOD Moulavi Book Depot, (04994) 220354 Vidya Book House, (04994) 224212KOCHI Skoo Books Store, 09961265008KODUNGAPUR Pisces Agencies, (09846132163)KOLLAM Ashok Books & Stationery, (0474) 2741676 Ashok Press, 09847074037 Bhavana Book Center, 09895685353 Book Mart, (0474) 2750081 H & C Store, (0474) 2765421 K.C. Book, 09400877358 Vasantha Book Stall, (0474) 274852KOTTARAKKARA Book4S&C, 09387920890

KOTTAYAM BOOK Centre, (0481) 2566992

Current Books, (0481) 2563111

H & C Store, (0481) 2304351 Royal Book Depot, (0481) 2567023 Saradhi Books, (0481) 2300604 Saradhi Publisher & Dist., (0481) 2568937 Teachers Publications, 09895399055KOZHIKODE T.B.S. Publishers, (0495) 2721025, 2720085

KUNNAMKULAM Book Center, (04885) 222995

H & C Stores, (04885) 222243MALAPPURAM H & C Store, (0493) 3225520

Sree Sankaracharya Campus, 09388162153PALAKKAD H & C Store, (0491) 2526317

PALARIVATTOM H & C Stores, (0484) 2344337

PATHANAMTHITTA H & C Store, (0468) 2223081

PERUMBAVOOR Adithya Book House, 09446547079

THODUPUZHA H & C Store, 09497715421

THRISSUR Cosmos Books, (0487) 2335292

Current Books, (0487) 2335570

Giftalia Book Bhawan, (0487) 2442290

H & C Store, (0487) 2421467

Vidya Bhawan Book Stall, (0487) 2335269

Minerva Books, (0457) 2338301

TIRUVALLA Vidyarthi Mithrem, (0469) 2702997

THIRUVANTHAPURAM Amass Book Centre, (0471) 2334348

New Capital Books, (0470) 2604285

Raghuvangi, 09447219938

THRIPPUNITHRA Central Book Depot, (0487) 2779196

H & C Store, (0484) 2777137

TRIVANDRUM Acedemic Book House, (0471) 2333349

Edumart, (0471) 2322223

H & C Store, (0471) 695001

Bhaskar Books, 09847471196

Golden Books, 08589923758

Ideal Book Center, 09645163611

Modern Book Center, (0471) 2331816 Moonlight Book Shop, (0471) 233008 Ocean Books, (0471) 3251102 Vinayaka Book Stall, (0471) 2464590

( 3 )

CONTENTS1. Forces of Fluids 5 - 13

2. Motion & Laws of Motion 14 - 36

Topic 1 : Motion

Topic 2 : Kinematic : Equations of Motion

Topic 3 : Laws of Motion & Momentum Conservation

3. Gravitation 37 - 45

Topic 1 : Universal Law of Gravitation & Acceleration due to Gravity

Topic 2 : Free Fall, Centre of Gravity & Weightlessness

4. Work, Energy & Power 46 - 57

WorkTopic 1 :

Topic 2 : Energy

Topic 3 : Power

5. Refraction of Light 58 - 71

Topic 1 : Refraction, Total Internal Reflection and Lens

Topic 2 : Power of a Lens and Human Eye

qq

( 3 )

CONTENTS

*First Terminal Evaluation - 2016 with Scheme of Evaluation (Issued by Academic Council in November 2016) 5 - 8

th *NOTE : This is the November Examination Paper for class 9 issued by Academic council for District Education Office. It

contains questions from both Part I & Part II of the SCERT Textbook.This Oswaal Question Bank is exclusively based on

SCERT Textbook Part II. In order to purchase Oswaal Part I Question Bank contact your closest bookseller (refer to the

distributor list) or log on to www.oswaalbooks.com; flipkart.com; amazon.in.

6. CURRENT ELECTRICITY 9 - 31

1 Topic : Electric Current

Topic 2 : Electric resistance and Electric power

7. MAGNETIC EFFECT OF ELECTRIC CURRENT 32 - 44

8. OUR UNIVERSE 45 - 55

Topic 1 : The Position of Moon, Sun and Stars

Topic 2 : Sun, Stars, Galaxy and Artificial Satellites

qq

( 4 )

PREFACE

Malcolm Forbes said “Education's purpose is to replace an empty mind with an open one”

and this is something which is always followed by Government of Kerala, Department of Education,

whether through their education system framework or recent enhancement in their curriculum. The

aim of their Curriculum is not just to let learners obtain basic knowledge but to make them life-

long learners.

The purpose of this book is to nurture individuality and thus enhance one's innate potentials

which help in increasing the self-study mode for students. This book strengthens knowledge and

attitude related to subject. This book is designed in such a way that students can set their own goals

and can improve their problem solving and thinking skills.

This book is strictly as per the latest SCERT Kerala Textbook, introduced by SSLC Board in

2016. It follows the latest syllabus prescribed by the board. It contains all types of questions like

Textbook Questions, VSA Questions (Very Short Answer), SA Questions (Short Answer), MCQs

(Multiple Choice Questions) and LA Questions (Long Answer). A synopsis is given for every chapter

which contains important points from that chapter. Each chapter has high quality figures wherever

required for better, fast and clear understanding.

OSWAAL SSLC Question Bank is different and better in terms of High Quality Questions

which are developed by 'OSWAAL Expert Panel' which ensures success in examination. The Question

Bank is arranged ‘Topic-Wise’ where each topic from every chapter is explained in detail. High quality

figures and Flow charts are given to improve retention of concepts.

Through OSWAAL Books students are taught how to think, not what to think. We at

OSWAAL Books try to use quality content, standard language, creativity and high quality figures,

which makes readers to enjoy it because we believe if our readers don't enjoy reading our book then

there is no use in reading it at all. This is one of the reasons that the scope of this book extends from

students to teachers. Teachers can use this book as a perfect teaching guide and students can use

this book for good learning and practice.

At last we would like to thank our authors, editors, reviewers and specially students whom

we request to send suggestions regularly which will help in continuous improvement of this book

and will make this book “One of the Best”. Wish you all Happy Learning.

Why Topic Wise Question Banks are a Better Choice than Previous Year’s Papers ?

Question Banks Previous Years’ Papers

1. Chapter-wise and Topic –wise presentation

in Question Banks facilitates systematic

study.

2. Question Banks can be referred to by the

students throughout the year as well as at

the completion of each chapter in school.

3. Question Banks, take into account any

changes in syllabus or layout and hence are

fully updated and aligned as per the latest

specifications by the Board.

1. Year Wise presentation restricts

methodical flow of learning.

2. These can be referred to only after the

completion of the full syllabus in school.

3. Previous Years' questions cannot be

changed and hence fail to be adept with

the latest Board specifications

–Publisher

FIRST TERMINAL EVALUATION 2016PHYSICS

(Issued by Academic Council Board in November, 2016)Standard : IX Score : 40

Time : 1½ hour

General Instructions : (i) First 15 minutes is given as cool off time. This time is to be used for reading and understanding the questions. (ii) Write down answers for all questions. (iii) For questions having choices, only need be answered. (iv) The score for each questions is given along with the question.

1. Using the relation between the terms in the first pair, complete the second. (a) Kerosene : mobile liquid :: honey : ........ 1 (b) Acceleration : m/s2 :: momentum : ........ 1 2. Match the following suitably.

A B C

Drawing water from a well Balanced force Stationary

Stands with a load on head Centripetal force Gives rectilinear motion

A ball tied to a rope is whirled Unbalanced force Circular motion

3. Water is filled in one of the beakers and saline water in the other as shown in figure. A and B are two objects of the same weight and the same volume.

A

B

(a) The object in which beaker experiences more buoyancy ? 1 (b) A ship enters from a sea to a fresh water lake. Will it sink more or rise up ? Justify your answer. 2 4. A child sticks a wet paper on a wall. (a) Which is the force that makes the paper to stick ? 1 (b) Write down two other occasions where this force is used. 2 5. Observe the figure. (a) Why does the water in the beaker rise up in the tube ? 1 (b) What changes happens to the water level in the tube, if a tube of larger diameter is inserted into water. Justify

your answer. 2 (c) Farmers plough the land before summer. What is the science behind it ? 2

water

6 ] Oswaal Kerala SSLC Question Bank, PHYSICS PART-2, CLASS-IX

6. The driver of an excavator operates a small lever which causes is heavy mechanical arms to move. (a) Which law is made use of here ? 1 (b) Name two other devices which makes use of this law ? 1 Answer any one of the questions, 7 A or 7 B. 7A. The velocity—time graph of a ball that rolls along a floor in a straight line is given.

0 2 4 6 8 10Y'

X'

time (second)

velo

city

(m/s

)

YA

20

16

12

8

4

(a) Calculate the displacement of the ball when it reaches B from A. 2 (b) Name the rate of change of velocity of the ball in this time? 1 (c) What is the velocity of the ball in the 4th second of its motion ? 1

OR 7B. The diary notes of a student while doing an experiment to prove Archimedes principle is given below. Complete the table. 4

Object Weight of the object in air

(N)

Weight of the object in water

(N)

Loss in weight Buoyancy

(N)

Weight of wateroverflowed

(N)

Iron (a) 270 (b) 30

Stone 200 (c) 40 (d)

8. All objects in the universe attract each other. (a) What are the factors which affect this attractive force ? 1 (b) How many times will the force change if the distance is halved ? 2 9. Classify the following situations as inertia of rest and inertia of motion. (a) The dust is thrown off while beating on a carpet. (b) In hammer throw the hammer is rotated fast before it is thrown off. (c) There is a coin on a cardboard placed above a cup. On striking off the cupboard, the coin does not move along

with. (d) A running athlete can't stop suddenly when he reaches the finishing line. 2 10. Observe the following graphs.

velo

city

time

(A)

velo

city

time

(B)time

velo

city

(C)

(a) Which is the graph of a body moving with a uniform acceleration ? 1 (b) A body started from rest and advances with a uniform acceleration 5 m/s2. What is its velocity after 3 s? 2

SOLVED PAPER - 2016 [ 7

11. Four balls are arranged on a string as shown in the figure. What can be the result of the following activity.

A B C D

(a) The ball A is pulled back and is made to hit on B. 1 (b) Which is the law on which your observation is based ? 1 12. The figure shows the liquids X and Y taken in a beaker. If 0.81 is the relative density of a liquid X and 1 for liquid

Y.

X

Y

Y

X

Figure (1) Figure (2)

(a) Choose the correct figure. 1 (b) Name the liquid Y. 1 (c) Name device used to measure relative density. 1 13. (a) State Newton's third law of motion. 1 (b) Find out the action and reaction while a man walking over a floor. 1 (c) Action and reaction do not cancel each other. Why ? 2 (d) If a cart is pushed while standing on ice, it won't move ? why ? 1

8 ] Oswaal Kerala SSLC Question Bank, PHYSICS PART-2, CLASS-IX

SOLUTIONS(Scheme of Valuation, 2016)

1. (a) viscous 1 (b) Kgm/s 1

2. A B C

Drawing water from a well Unbalanced force Gives rectilinear motion 1

Stands with a load on head Balanced force Stationary 1

A ball tied to a rope is whirled Centripetal force Circular motion 1

3. (a) Beaker 2 1 (b) Sinks more ,Because density of fresh water is less than that of salt water, when density decreases buoyancy

also decreases. 2 4. (a) Adhesive force 1 (b) Wet clothes cling to our body chalk powder stick to the black board 2 Any two examples 5. (a) Capillary rise (b) Capillary rise decreases Capillary rise is due to the attractive force between water molecules and glass walls. These attractive forces

just balance the force of gravity of the column of water that has risen to a particular height. When diameter increases volume of water increases and adhesive force can't balance the gravity,hence less is the capillary rise.

(c) There are thousands of capillaries in soil. During summer these capillaries transport water to the surface by capillarity and water evaporates. When we plough the land, diameter of capillaries increases and this decreases capillarity, hence saves water. 2

6. Pascals law 1 hydraulic jack, Hydraulic press 1 7A. (a) displacement = Area of the velocity-time graph = ½ × 10 × 20 = 100 m 2 (b) Retardation 1 (c) 12 m/s 1 7B. (a) 300 (b) 30 (c) 160 (d) 40 4 × 1 = 4 8. (a) Mass of the objects,Distance between the objects 1 (b) Four times 2 9. (a) Inertia of rest (b) Inertia of motion (c) Inertia of rest (d) Inertia of motion 4 × ½ = 2 10. (a) A 1 (b) v = u + at = 0 + 5 × 3 = 15m/s 2 11. (a) The ball D is thrown off 1 (b) Law of conservation of momentum 1 12. (a) fig 2 1 (b) Water 1 (c) Hydrometer 1 13. (a) To every action ,there is an equal and opposite reaction 1 (b) Action : Man exerts a force on the floor 1 Reaction : The floor exerts an equal force on the feet of the man 2 (c) Action and reaction act on different objects (c) Necessary reaction is not obtained from ice. 1

CHAPTER

6 CURRENT ELECTRICITY

OUTLINE ¾ Charge. ¾ Current – applications and measurement. ¾ Resistance – series and parallel combinations. ¾ Colour code for resistance.

TOPIC-1Electric Current

QUICK REVIEW ¾ The S.I unit of charge is coulomb. (c)

¾ Like charges repel each other and unlike charges attract each other.

¾ 1 coulomb positive charge implies deficiency of 6.25 × 1018 electrons.

¾ 1 coulomb negative charge implies excess of 6.25 × 1018 electrons.

¾ Current flows from a point of high electric potential to a point of low electric potential.

¾ The unit of potential difference is volt.

¾ Conductors allow electric current to pass through them.

¾ Insulators do not allow electric current to pass through them as they do not have free charge carriers.

¾ Conductors contain charge carriers in the form of free electrons in solid or cations / anions in liquids (electrolyte)

¾ The best conductor of electric current is silver.

¾ Electric charge is the property of matter due to which it produces and experiences electric and magnetic effects. There exists two types of charge in nature :

(i) Positive charge (ii) Negative charge

¾ Fundamental law of electrostatics : Like charges repel and unlike charges attract each other.

¾ Coulomb’s Law : The force of attraction or repulsion between two point charges is (i) directly proportional to the product (q1 q2) of the two charges and (ii) inversely proportional to the square of the distance (r) between them.

Mathematically,

F K 2=q q1 2

r

¾ The value of K depends on the nature of the medium between the two charges and the system of units chosen. For charges in vacuum, K = 9 × 109 Nm2/C2.

TOPIC - 1Electric Current .... P. 09

TOPIC - 2Electric resistance and Electric power .... P. 15

Oswaal Kerala SSLC Question Bank ForClass 9 Physics (Part-2) With Complete

Solutions For 2017 Examination

Publisher : Oswaal Books ISBN : 9789386177995 Author : Panel Of Experts

Type the URL : http://www.kopykitab.com/product/9674

Get this eBook

52%OFF