physics assignment class 9 question

Class 9 Physics Assignments

We have provided below free printable Class 9 Physics Assignments for Download in PDF. The Assignments have been designed based on the latest NCERT Book for Class 9 Physics . These Assignments for Grade 9 Physics cover all important topics which can come in your standard 9 tests and examinations. Free printable Assignments for CBSE Class 9 Physics , school and class assignments, and practice test papers have been designed by our highly experienced class 9 faculty. You can free download CBSE NCERT printable Assignments for Physics Class 9 with solutions and answers. All Assignments and test sheets have been prepared by expert teachers as per the latest Syllabus in Physics Class 9. Students can click on the links below and download all Pdf Assignments for Physics class 9 for free. All latest Kendriya Vidyalaya Class 9 Physics Assignments with Answers and test papers are given below.

Physics Class 9 Assignments Pdf Download

We have provided below the biggest collection of free CBSE NCERT KVS Assignments for Class 9 Physics . Students and teachers can download and save all free Physics assignments in Pdf for grade 9th. Our expert faculty have covered Class 9 important questions and answers for Physics as per the latest syllabus for the current academic year. All test papers and question banks for Class 9 Physics and CBSE Assignments for Physics Class 9 will be really helpful for standard 9th students to prepare for the class tests and school examinations. Class 9th students can easily free download in Pdf all printable practice worksheets given below.

Topicwise Assignments for Class 9 Physics Download in Pdf

Advantages of Class 9 Physics Assignments

• As we have the best and largest collection of Physics assignments for Grade 9, you will be able to easily get full list of solved important questions which can come in your examinations.
• Students will be able to go through all important and critical topics given in your CBSE Physics textbooks for Class 9 .
• All Physics assignments for Class 9 have been designed with answers. Students should solve them yourself and then compare with the solutions provided by us.
• Class 9 Students studying in per CBSE, NCERT and KVS schools will be able to free download all Physics chapter wise worksheets and assignments for free in Pdf
• Class 9 Physics question bank will help to improve subject understanding which will help to get better rank in exams

Frequently Asked Questions by Class 9 Physics students

At https://www.cbsencertsolutions.com, we have provided the biggest database of free assignments for Physics Class 9 which you can download in Pdf

We provide here Standard 9 Physics chapter-wise assignments which can be easily downloaded in Pdf format for free.

You can click on the links above and get assignments for Physics in Grade 9, all topic-wise question banks with solutions have been provided here. You can click on the links to download in Pdf.

We have provided here topic-wise Physics Grade 9 question banks, revision notes and questions for all difficult topics, and other study material.

We have provided the best collection of question bank and practice tests for Class 9 for all subjects. You can download them all and use them offline without the internet.

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CBSE Worksheets for Class 9 Physics

CBSE Worksheets for Class 9 Physics: One of the best teaching strategies employed in most classrooms today is Worksheets. CBSE Class 9 Physics Worksheet for students has been used by teachers & students to develop logical, lingual, analytical, and problem-solving capabilities. So in order to help you with that, we at WorksheetsBuddy have come up with Kendriya Vidyalaya Class 9 Physics Worksheets for the students of Class 9. All our CBSE NCERT Class 9 Physics practice worksheets are designed for helping students to understand various topics, practice skills and improve their subject knowledge which in turn helps students to improve their academic performance. These chapter wise test papers for Class 9 Physics will be useful to test your conceptual understanding.

Board: Central Board of Secondary Education(www.cbse.nic.in) Subject: Class 9 Physics Number of Worksheets: 25

CBSE Class 9 Physics Worksheets PDF

All the CBSE Worksheets for Class 9 Physics provided in this page are provided for free which can be downloaded by students, teachers as well as by parents. We have covered all the Class 9 Physics important questions and answers in the worksheets which are included in CBSE NCERT Syllabus. Just click on the following link and download the CBSE Class 9 Physics Worksheet. CBSE Worksheets for Class 9 Physics can also use like assignments for Class 9 Physics students.

• CBSE Worksheets for Class 9 Physics All Chapters Assignments 
• CBSE Worksheets for Class 9 Physics Force and Laws of Motion Assignment 1
• CBSE Worksheets for Class 9 Physics Force and Laws of Motion Assignment 2
• CBSE Worksheets for Class 9 Physics Force and Laws of Motion Assignment 3
• CBSE Worksheets for Class 9 Physics Gravitation Assignment 1
• CBSE Worksheets for Class 9 Physics Gravitation Assignment 2
• CBSE Worksheets for Class 9 Physics Gravitation Assignment 3
• CBSE Worksheets for Class 9 Physics Motion Assignment 1
• CBSE Worksheets for Class 9 Physics Motion Assignment 2
• CBSE Worksheets for Class 9 Physics Sound Assignment
• CBSE Worksheets for Class 9 Physics Work & Energy Assignment 1
• CBSE Worksheets for Class 9 Physics Work & Energy Assignment 2
• CBSE Worksheets for Class 9 Physics Assignment 1
• CBSE Worksheets for Class 9 Physics Assignment 2
• CBSE Worksheets for Class 9 Physics Assignment 3
• CBSE Worksheets for Class 9 Physics Assignment 4
• CBSE Worksheets for Class 9 Physics Assignment 5
• CBSE Worksheets for Class 9 Physics Assignment 6
• CBSE Worksheets for Class 9 Physics Assignment 7
• CBSE Worksheets for Class 9 Physics Assignment 8
• CBSE Worksheets for Class 9 Physics Assignment 9
• CBSE Worksheets for Class 9 Physics Assignment 10
• CBSE Worksheets for Class 9 Physics Assignment 11
• CBSE Worksheets for Class 9 Physics Assignment 12
• CBSE Worksheets for Class 9 Physics Assignment 13

Advantages of CBSE Class 9 Physics Worksheets

• By practising NCERT CBSE Class 9 Physics Worksheet , students can improve their problem solving skills.
• Helps to develop the subject knowledge in a simple, fun and interactive way.
• No need for tuition or attend extra classes if students practise on worksheets daily.
• Working on CBSE worksheets are time-saving.
• Helps students to promote hands-on learning.
• One of the helpful resources used in classroom revision.
• CBSE Class 9 Physics Workbook Helps to improve subject-knowledge.
• CBSE Class 9 Physics Worksheets encourages classroom activities.

Worksheets of CBSE Class 9 Physics are devised by experts of WorksheetsBuddy experts who have great experience and expertise in teaching Maths. So practising these worksheets will promote students problem-solving skills and subject knowledge in an interactive method. Students can also download CBSE Class 9 Physics Chapter wise question bank pdf and access it anytime, anywhere for free. Browse further to download free CBSE Class 9 Physics Worksheets PDF .

Now that you are provided all the necessary information regarding CBSE Class 9 Physics Worksheet and we hope this detailed article is helpful. So Students who are preparing for the exams must need to have great solving skills. And in order to have these skills, one must practice enough of Class 9 Physics revision worksheets . And more importantly, students should need to follow through the worksheets after completing their syllabus.  Working on CBSE Class 9 Physics Worksheets will be a great help to secure good marks in the examination. So start working on Class 9 Physics Worksheets to secure good score.

CBSE Worksheets For Class 9

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Download Sample Questions and Assignments for Class 9 Mathematics and Science with important Topic- Wise Questions. These Sample Questions and Assignments have been prepared as per the syllabus issued by CBSE, KVS and topics given in NCERT Book. Solving this Sample questions and Assignments will help in scoring in more marks in your class tests and school examinations.

Click on links below for Assignments with important questions for Class 9 Mathematics and Science chapter wise.

Assignment For Class 9th Mathematics Topic -wise- PDF Download

Chapter 1: number system.

Assignment of Mathematics Chapter 1 Number System Assignment

Chapter 2: Polynomials

Assignment of Mathematics Chapter 2 Polynomials Assignment 1

Assignment of Mathematics Chapter 2 Polynomials Assignment 2

Chapter 3: Linear Equation in Two Variables

Assignment of Mathematics Chapter 3 Linear Equation in Two Variables Assignment

Chapter 4: Coordinate Geometry

Assignment of Mathematics Chapter 4 Coordinate Geometry Assignment

Assignment For Class 9th Biology Topic -wise- PDF Download

Chapter 1: the fundamental unit of life: cell.

Assignment of Biology Chapter 1 The Fundamental Unit of Life: Cell Assignment 1

Assignment of Biology Chapter 1 The Fundamental Unit of Life: Cell  Assignment 2

Assignment of Biology Chapter 1 The Fundamental Unit of Life: Cell  Assignment 3

Assignment of Biology Chapter 1 The Fundamental Unit of life: Cell  Assignment

Chapter 2: Tissue

Assignment of Biology Chapter 2   Tissue  Assignment 1

Assignment of Biology Chapter 2 Tissue  Assignment 2

Assignment of Biology Chapter 2 Tissue Assignment 3

Assignment of Biology Chapter 2 Tissue  Assignment 4

Assignment For Class 9th Chemistry Topic -wise- PDF Download

Chapter 1: matter in our surrounding.

Assignment of Chemistry Chapter 1 Matter In Our Surrounding Assignment 1

Assignment of Chemistry Chapter 1 Matter In Our Surrounding Assignment 2

Assignment of Chemistry Chapter 1 Matter In Our Surrounding Assignment 3

         2. Is Matter Around Us Pure

Assignment of Chemistry Chapter 2  Is Matter Around Us Pure  Assignment 1

Assignment of Chemistry Chapter 2 Is Matter Around Us Pure  Assignment 2

Assignment of Chemistry Chapter 2 Is Matter Around Us Pure  Assignment 3

Assignment For Class 9th Physics Topic -wise- PDF Download

Chapter 1: motion.

Assignment of Physics Chapter 1 Motion Assignment 1

Sample Question for Physics Motion Assignment 2

Assignment of Physics Chapter 1 Motion Assignment 3

Assignment of Physics Chapter 1 Motion Assignment 4

Assignment of Physics Chapter 1 Motion Assignment 5

Chapter 2: Force and Laws Of Motion

Assignment of Physics Chapter 2 Force and Laws Of Motion Assignment 1

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Assignment Class 12 Chemistry

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Assignment Class 8 Math

Assignment Class 9 Math

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Sample Paper Class 8 Math

Sample Paper Class 9 Math

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CBSE Class 9 Science Physics Question bank

Read and download free pdf of CBSE Class 9 Science Physics Question bank. Get printable school Assignments for Class 9 Science . Class 9 students should practise questions and answers given here for All topics Science in Class 9 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 9 Science prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations

Assignment for Class 9 Science All topics

Class 9 Science students should refer to the following printable assignment in Pdf for All topics in Class 9. This test paper with questions and answers for Class 9 Science will be very useful for exams and help you to score good marks

All topics Class 9 Science Assignment

QUESTION BANK

1. Give two examples of Cereals (Wheat, rice)

2. Define the Kharif crop and give two examples (The crops grown in rainy season are called as Kharif crops Ex. Paddy, Soya bean).

3. Write about the importance of Green Revolution (Indian population is growing enormously. Green Revolution is the need of the hour to increase food-grain production.

4. Define the term Hybridization(Crossing between genetically dissimilar plants)

5. What is the importance of Genetically Modified Crops? (It is another way of improving the crop is by introducing a gene that would provide the desired characteristic.)

6. Define the term mixed cropping and give two examples. (Two or more crops grown simultaneously on the same piece of landEx. Wheat+ Gram; Wheat+ Mustard)

7. Distinguish between weeds, insects pests(Weeds are unwanted plants in the crop field Insect pest is nuisance in the crop field)

8. What is Animal Husbandry? It is a scientific management of animal livestock, includes feeding, breeding and diseases control. Animal-based farming includes cattle farming, Poultry farming, fish farming, and bee keeping.

9. Distinguish between aquaculture and mariculture. (Fish production is aquaculture. Growing of marine fishes is called mariculture.)

10. What is the importance of Bee Culture? (It is useful for honey, wax, medicinal preparations. And also for additional income to the farmer.)

QUESTION PAPER:FORMATIVE ASSESSMENT – I (For Practice)  

Q.1 Maize and Millets are Pulses. Mention True/False……………………………………

Q.2 What is the Scientific name of Honey Bee………………………………………………….

Q.2 What led us to improve food grain production?

Q.3 Which revolution led to the availability of milk for efficient use?

Q.4 What is the process of injecting semen of desired bull into the vagina of cows is called?

Q.5 Name any one exotic breed usually used for variety of improvement programmes.

Q.6 What is the significance of GMC

Q.7 Mention the significance of Irrigation in developing agriculture.

Q.8. What is Pest and give one example.

Q.9 What is Weed and give one example.

Q.10 Give two examples for Inter-cropping.

Q.11 Distinguish between Kharif and Rabi Crops

Q.12 What is called Sustainable Practice in improvement in food resources.

Q.13. Mention three techniques of Hybridization used to achieve desirable agronomic characteristics.

Q.14.Distinguish between Macro Nutrients and Micro Nutrients

Q.15 Distinguish between Compost and Vermi Compost.

Q.16 Distinguish between Cattle farming and Poultry farming.

Q.17 Distinguish between Fish farming and Bee keeping.

CBSE Class 9 Science All topics Assignment

We hope you liked the above assignment for All topics which has been designed as per the latest syllabus for Class 9 Science released by CBSE. Students of Class 9 should download and practice the above Assignments for Class 9 Science regularly. We have provided all types of questions like MCQs, short answer questions, objective questions and long answer questions in the Class 9 Science practice sheet in Pdf. All questions have been designed for Science by looking into the pattern of problems asked in previous year examinations. You can download all Revision notes for Class 9 Science also absolutely free of cost. Lot of MCQ questions for Class 9 Science have also been given in the worksheets and assignments for regular use. All study material for Class 9 Science students have been given on studiestoday. We have also provided lot of Worksheets for Class 9 Science which you can use to further make your self stronger in Science.

You can download free Pdf assignments for CBSE Class 9 Science All topics from StudiesToday.com

All topics given in All topics Science Class 9 Book for the current academic year have been covered in the given assignment

No, all Printable Assignments for All topics Class 9 Science have been given for free and can be downloaded in Pdf format

Latest syllabus issued for current academic year by CBSE has been used to design assignments for All topics Class 9

Yes, we have provided detailed answers for all questions given in assignments for All topics Class 9 Science

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Class 9 Science study material of science(Physics|Biology|Chemistry)

Welcome to our class 9 Science page. In this page you can find Class 9 Physics, Class 9 chemistry and Class 9 biology Notes, assignments etc You can share the link to free Class 9 NCERT Science solutions with your classmates as all study material is free of cost.

How to use this page to learn Science

• First read and understand the notes.
• Try to go through the solved examples of of the chapter you are reading
• Now it is the time to solve unsolved assignments and worksheets. You will find plenty of them here or on the respective chapter page.

Chapter 1: Matter in our surroundings

• Introduction
• Physical nature of matter
• Evidence of particles in matter
• Characteristics of particles of Matter
• States of matter
• Change of State of Matter
• Latent Heat
• evaporation
• NCERT Solutions Matter in our surroundings
• Matter in our surroundings Worksheet
• Matter in our surroundings MCQ
• Matter in our surroundings Test Paper
• Matter in our surroundings Extra Questions

Chapter 2: Is Matter around us Pure

• Is Matter around us pure Notes
• Worksheet for Is Matter around us pure
• Multiple Choice questions for Is Matter around us pure
• Extra Questions Is Matter around us pure

Chapter 3: Atom and Molecules

• Atom and Molecules Notes
• NCERT solutions for Atoms and Molecules
• Atom and Molecules Test Paper
• Atom and Molecules Clas 9 Extra Questions
• Atom and Molecules Numericals Problems
• Atom and Molecules Worksheet
• Atom and Molecules Multiple choice questions

Chapter 4: Structure Of Atoms

• Structure of atoms class 9 Extra Questions
• Structure of atoms class 9 worksheet
• Structure Of Atoms test Paper
• Structure Of Atoms Multiple choice questions

Chapter 5: The Fundamental Unit of Life

• The Fundamental Unit of Life Class 9 Notes
• Fundamental Unit of Life Class 9 NCERT Solutions
• The Fundamental Unit of Life Class 9 Extra questions
• The Fundamental Unit of Life Class 9 Test Paper
• The Fundamental Unit of Life Class 9 worksheet

Chapter 6: Tissues

• Tissues class 9 notes
• Tissues Class 9 Extra Questions

Chapter 7: Motion

• Class 9 Motion Notes
• Conceptual Questions and answers on Motion for Class 9
• Motion Class 9 Numericals
• Important Questions and answers on Motion for Class 9
• Worksheet on Motion for Class 9 physics
• Question Bank on Motion for Class 9 physics
• NCERT solutions for class 9 science chapter 8 intext and Exercise for Motion

Chapter 8: Force And Laws of Motion

• Force And Laws of Motion Class 9 Notes
• Force and Laws of Motion MCQ and Conceptual questions Class 9
• Force And Laws of Motion Class 9 Numerical Problems
• Worksheet on Force and Momentum
• Extra questions Class 9 Force, Momentum and laws of Motion
• NCERT Solutions(intext and Exercise) for Force And Laws of Motion

Chapter 9: Gravitation

• Class 9 Gravitation Notes
• Gravitation Class 9 Extra questions
• Gravitation Class 9 test paper
• Gravitation Class 9 NCERT Intext Solutions
• Gravitation Class 9 NCERT Exercise Solutions
• Gravitation Class 9 Numericals
• Gravitation Class 9 Worksheet

Chapter 10: Work and energy

• Work And Energy class 9 Notes
• Work and energy Class 9 Questions and Answers
• NCERT (intext and Exercise) Solutions Class 9 Work and Energy
• Work and Energy Class 9 Worksheet
• Work and Energy Class 9 Numericals

Chapter 11: Sound

• Sound class 9 Notes
• Sound Class 9 Questions and Answers
• NCERT Solutions Class 9 Science Sound
• Sound Class 9 Numericals of Sound
• Sound Class 9 Extra questions of Sound

Chapter 12: Improvement in food resources

• Sources of food
• Sustainable agriculture
• Organic Farming
• Crop production
• Improvement in Yields
• Manures and fertilizers
• Cropping pattern
• Crop protection management
• Storage of grains
• Animal husbandry
• Cattle Farming
• Farm Management Practices
• Poultry Farming
• Fish Production
• Bee Keeping
• Improvement in food resources Extra Questions

Chapter 13: Natural Resources

• Natural resources class 9 notes
• NCERT Solutions for Natural Resources
• Natural Resources Short Questions(download)
• Natural Resources Important questions
• Natural Resources Long Questions

Deleted Chapter 2023-2024

Diversity in living organisms.

• Diversity in living organisms class 9 notes
• Diversity in living organisms class 9 important questions
• Diversity in living organisms class 9 worksheet
• Biological Diversity Short questions worksheet-1(download)
• Biological Diversity Short questions worksheet-2(download)

Why do we fall ill

• Why do we fall ill Notes
• NCERT Solutions for Why do we fall ill
• Why do we fall ill Short questions(download)
• Why do we fall ill Extra Questions
• Why do we fall ill Important Questions

Final Exam test papers (science)

• Class 9 Science test Paper
• CBSE science sample papers for class 9 sa2

Half Yearly test papers (science)

• Class 9 Science Half Yearly Test paper
• Class 9 Science TERM-1 Question paper
• Class 9 Science Half Yearly Sample Paper
• Class 9 Science Half yearly question paper

Frequently asked Questions on CBSE Class 9 Science

How many chapters are there in class 9 science.

There are total 13 chapters in Class 9 Science as per the rationalized Syllabus. All the chapters will come in Final examination

What is the best books for Class 9 Science?

Couple of book (a)NCERT Class 9 Science textbook (b)NCERT Class 9 Science Exemplar (c)Science for 9th Class by Lakhmir Singh and Manjit Kaur

Which is the easiest chapter of Class 9 Science NCERT Text book?

Motion and Atoms & Molcules are the easiast chapter

Is Class 9 Science NCERT Text book Sufficient for CBSE Exams?

It is sufficient if you go through all the questions in the NCERT text book thoroughly and practice them all.However to enhance your Science skill , you can go for NCERT exemplar and other books

what is the best way to learn the concept in Class 9 Science?

First go through all the Notes and solved examples and Then do the exercises. Practice Lot of questions. The simple Mantra is Practice .Practice and Practice

what is the deleted syllabus in Class 9 Science?

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• CBSE- Work and Energy
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• STUDY MATERIAL FOR CBSE CLASS 9 PHYSICS
• Chapter 1 - Motion
• Chapter 2 - Sound
• Chapter 3 - Work and Energy
• Chapter 4 - Forces and Laws of Motion
• Chapter 5 - Gravitation

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Physics questions and answers for class 9 cbse icse

Last updated on July 13th, 2023 at 10:15 am

Physics questions and answers for class 9 for CBSE and ICSE boards – selected Numericals and fundamental questions are being published under this super set.

Assignments

1.) A ball is thrown vertically upwards. It goes to a height of 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 m S-2, find :

(a) the initial velocity of the ball

(b) the final velocity of the ball on reaching the ground and

(c) the total time of the journey of the ball.

Solution:  The maximum height reached 20 m  h = 20 m g = 10 m/s^2

h = u^2/(2g) i.e., the initial velocity with which it was thrown upwards = u = √(2gh) So here u = √(2 * 10 * 20) = 20 meter/sec

the final velocity of the ball on reaching ground v v = √(2gh= √(2 * 10 * 20) = 20 meter/sec

Total time of journey= time for upward journey + time for downward journey = 2 u/g, Here u is the initial velocity with which the ball was thrown upwards. T = 2 u/g = 2 *20/10 = 4 secs

2.) A body is dropped from the top of a tower. It acquires a velocity 20 m S-l on reaching the ground. Calculate the height of the tower.

(Take g = 10 m S-2)

solution: final velocity during the downward movement =V= 20 m/s Here height h = (V^2)/(2g) = (20*20)/(2*10) m= 20 m

3.) A ball is thrown vertically upwards. It returns 6 s later. Calculate (i) the greatest height reached by the ball, and (ii) the initial velocity of the ball. (Take g = 10 m s-2)

Solution: (i) Max or greatest height = H = (u ^2) /(2g)……….(a)

We have to find out the value of the initial velocity of upward movement first. The time to reach the max height and then come back is given as t=6 sec. So time to reach max height = 6/2 = 3 secs

From the equation of upward movement, v = u – gt, where v =0 we get u = gt. So the value of initial velocity u = gt = 10.3 m= 30 m/s

from equation (a) now we get the max height = H = (30*30)/(2*10) m= 45 m (ii) Initial velocity we have already found out as 30 m/s

4.) A pebble is thrown vertically upwards with a speed of 20 m/s. How high will it be after 2 s? (Take g = 10 m S-2)

5.) (a) How long will a stone ground from the top of a building 80 m high and (b) what will be the velocity of the stone on reaching the ground? (Take g = 10 m S-2)

6.) A body falls from the top of a building and reaches the ground 2·5 s later. How high is the building? (Take g = 9·8 m S-2)

7.) A ball is thrown vertically upwards with an initial velocity of 49 m/s. Calculate :

(i) the maximum height attained, (ii) the time taken by it before it reaches the ground again.(Take g = 9·8 m S-2).

8.) A stone is dropped freely from the top of a tower and it reaches the ground in 4 s. Taking g = 10 m S-2, calculate the height of the tower.

9) What is the relationship between displacement and time in uniform motion?

10) What do we get from the slope of displacement – time graph?

11) What do we get from the slope of the velocity-time graph?

12) Velocity-time graphs of 2 cars A and B are analyzed. Car A has a steeper slope than that of car B. What does this mean?

13) How can we get displacement from the velocity-time graph?

14) What is linear motion?

15) When is the distance traveled equal to the magnitude of displacement?

16) give one example where displacement is zero while distance traveled is non-zero positive.

17) Can we get the first law of motion from the second law of motion? Briefly show how.

18) What is the relation between the rate of change of momentum of a system and the force applied to that system?

19) Show the forces acting on a simple pendulum bob suspending vertically with a string.

20) Mass is the measure of inertia. Briefly explain.

21) What does G stand for? What is the unit, dimension, and value of G? [hint: chapter Gravitation]

22) A 10 kg block is resting on a plain surface. What is the thrust applied on the surface?

23) If the surface area is doubled, what can we do to retain the same pressure on the surface?

24) Can you derive the equation of force from Newton’s 2nd law of motion? If yes, pls derive it.

25) What is the difference between Kgf and Kg?

26) What is the relation between Kgf and Newton? What is the relation between Newton and Dyne?

27) Define the least count? What is the least count of the ruler you generally use?

28) Can you differentiate between g and G ? Which one will change if we move to the moon?

29) Can you draw a velocity-time graph for non-uniform acceleration?

30) If we throw a ball vertically upwards with a speed of 90 m/s then what will be its speed just before touching the ground? What is the total time taken for the to and fro flight? g =10 m/s^2.

31) Can we get the value of acceleration from the velocity-time graph? If yes, how?

Answer hint: yes, from the slope of the graph

32) Can we get the value of distance travelled from the velocity-time graph? If yes, how?

Answer hint: yes, from the area covered by the graph

33) A train travels at a speed of 60 km/hr for 0·52 hr, at 30 km/h for the next 0·24 hr, and then at 70 km/h for the next 0·71h. What is the average speed of the train?

(i) In the first case, the train travels at a speed of 60 km/h for a time of 0·52 h. Now, Speed =distance/ time Distance = speed x time =60 × 0·52 = 31·2 km …(1) (ii) In the second case, the train travels at a speed of 30 km/h for a time of 0·24 hr. Distance = = speed x time =30 × 0·24 = 7·2 km …(2) (iii) In the third case, the train travels at a speed of 70 km/h for a time of 0·71 hr. Distance = = speed x time = 70 × 0·71 = 49·7 km …(3) From equations 1, 2 & 3 we get, Total distance travelled = (31·2 + 7·2 + 49·7) km = 88·1 km. Total time taken = (0·52 + 0·24 + 0·71) hr =1·47 hr. Average speed =Total distance travelled/Total time taken= (88·1/1.47) km/hr So, Average speed = 59·9 km/hr

34) Which law of motion can best describe the following : (a) Force applied while pulling a lawn mower. (b) Shoulder bone fracture from the recoil of a gun. (c) Coin remains on the table when the table cloth is suddenly removed.

Answer: (a) According to Newton’s II law of motion (b) According to Newton’s III law of motion (c) According to Newton’s I law of motion.

35) State three characteristics of action-reaction forces.

Ans. (i) Equal in magnitude. (ii) Opposite in direction. (iii) Acts simultaneously on two different bodies.

36)A scooter is moving with a velocity of 25 m/s and it takes 5 s to stop after the brakes are applied. If the mass of the scooter along with the rider is 180 kg, find the change in momentum in this case.

Solution: u = 25 m/s, v = 0, m = 180 kg t = 5 s (this time data is not required here) Initial momentum = p1 = mu = 180 × 25 = 4500 kg-m/s 1 Final momentum = p2 = mv = 180 × 0 = 0 kgm/s 1 So change in momentum= p2– p1 = 0 – 4500 = – 4500 kg-m/s

37) Look at the diagram above and answer the following questions :

(a) (i) When a force is applied through the free end of the spring balance A the reading on the spring balance A is 20 gwt. What will be the reading shown by the spring balance B? (ii) Write reasons for your answer. (b) If a balloon is filled with air and its mouth untied, the air is released from its mouth in the downward direction. Write the other observations made by you. Justify your answer.

(a) (i) Spring balance B will also show 20 gwt. (ii) It is because of Newton’s Third law of motion. When spring balance A exerts a pulling force on balance B then balance B also pulls balance A with an equal force of 20 gwt, but in the opposite direction. Balance A exerts a force of action on balance B then balance B exerts an equal and opposite force of reaction on balance A. (b) It is observed that the balloon moves in an upward direction as air comes out from the balloon. As the air comes out in the downward direction, it performs an action in the downward direction. As a result, there will be a reaction (equal in magnitude but opposite in direction) in the form of the upward motion of the balloon.

many more questions are coming …watch this place

for physics problems with ready solutions-class 9 (link below) selected set for class 9 -Motion

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• Worksheet For class 9

ICSE Worksheet for class 9 Physics

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Physics is one of the most important subjects in the next Class 10. Therefore, it is essential to familiarize yourself with the many questions in this article to help you develop your ideas and prepare a good concept for students to write a better answer.

In class 9 physics, almost all topics are covered, such as movement, sound, light, etc. Class 9th physics syllabus is very large and has high difficulty level. But by reading and practicing the many questions, you can easily get good marks. In this article, Some of the main topics covered in Class 9th physics are listed below:

• Force and Pressure
• Electricity.

Each topic is classified into several chapters, and each topic contains several questions. Worksheets for class 9 physics are beneficial for students to understand the pattern of the question paper and also get an idea about the sample paper marking process. Therefore, students should download and practice the ICSE worksheet for Class 9 Physics to get good marks in the exams.

Find ICSE Worksheet for class 9 science Physics these sections consist of questions in the worksheet from the physics section of the ICSE textbook these questions are MCQ based, Long answer types and short answer types. For ICSE worksheet for class 9 Science check out main page of Physics Wallah.

Find below Chapter Wise Physics Worksheet For Class 9

• ICSE Worksheet for chapter-1 Estimation and units class 9
• ICSE Worksheet for chapter-10 Heat class 9
• ICSE Worksheet for chapter-11 Transfer of Heat class 9
• ICSE Worksheet for chapter-12 Energy Flow &Conservation class 9
• ICSE Worksheet for chapter-13 Reflection of Light at a Plane class 9
• ICSE Worksheet for chapter-14 Spherical Mirrors class 9
• ICSE Worksheet for chapter-16 Static Electricity class 9
• ICSE Worksheet for chapter-17 Current Electricity class 9
• ICSE Worksheet for chapter-18 Magnetism class 9
• ICSE Worksheet for chapter-2 Measurements class 9
• ICSE Worksheet for chapter-3 Experimentation class 9
• ICSE Worksheet for chapter-4 Motion in One Dimension class 9
• ICSE Worksheet for chapter-5 Motion in One Dimension class 9
• ICSE Worksheet for chapter-6 Newton’s Laws Of Motion class 9
• ICSE Worksheet for chapter-7 Pressure in A Fluid class 9
• ICSE Worksheet for chapter-8 Up thrust in Fluids and Archimedes class 9
• ICSE Worksheet for chapter-9 Floatation and Relative Density class 9

List of Worksheets Cover in these Sections are

Students can download the following worksheet form this page are

• Worksheet - 1 Estimation and Units
• Worksheet - 2 Measurements
• Worksheet - 3 Experimentation
• Worksheet - 4 Motion in one dimension
• Worksheet - 5 Motion in one dimension
• Worksheet - 6 Laws of motion
• Worksheet - 7 Pressure in fluids and atmospheric pressure
• Worksheet - 8 Upthrust in fluids and Archimedes principle
• Worksheet - 9 Flotation and relative density
• Worksheet - 10 Heat
• Worksheet - 11 Transferring Heat
• Worksheet - 12 Energy Flow & Conservation of Resources
• Worksheet - 13 Reflection of light
• Worksheet - 14 Spherical Mirrors
• Worksheet - 15 Propagation of sound waves
• Worksheet - 16 Static Electricity
• Worksheet - 17 Current Electricity
• Worksheet - 18 Magnetism

Related Link

• Class 9 Physics Notes
• Class 9 Chemistry Notes
• Class 9 Biology Notes
• Class 9 Maths Notes
• Class 9 Online Quiz Physics
• Class 9 Online Quiz Chemistry
• Class 9 Online Quiz Maths
• NCERT Solutions For Class 9
• RS Aggarwal Solutions Class-9
• RD Sharma solutions Class-9
• VK Agarwal Solution Class 9
• Lakhmir Singh Solutions Physics
• Lakhmir Singh Solutions Chemistry
• Important Question Class-9 Maths
• Important Question Class-9 Science
• Maths sample papers class 9
• Ask your Doubt
• Science Formulas
• Maths Formula
• NCERT Exemplar Class 9 Maths

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