CBSE Class 9 Physics Question Paper Set B

CBSE Physics Question Paper for Class 9 CBSE exams for CBSE Students. Based on CBSE and CCE guidelines. The students should practice these Question Papers to gain perfection which will help him to get more marks in CBSE examination. Please refer to more CBSE Class 9 question papers in other links. The CBSE Question papers are of past examinations. Its always recommended by CBSE to practice the papers released by CBSE to get better exams in CBSE exams. CBSE Last Year Question Papers for class IX for final/ term/ SA1/ SA2 Examinations conducted by Central Board of Secondary Education for all CBSE affiliated schools in India and abroad.

SUMMATIVE ASSESSMENT –I (2011)

SCIENCE -SC1 QP 470013

Class – IX (Physics)

General Instructions:

(i) The question paper comprises of two sections, A and B. You are to attempt both the sections.

(ii) All questions are compulsory.

(iii) There is no overall choice. However, internal choice has been provided in all the five questions of five marks category. Only one option in such questions is to be attempted.

(iv) All questions of section A and all questions of section B are to be attempted separately.

(v) Questions 1 to 3 in section A are one mark questions. These are to be answered in one word or in one sentence.

(vi) Questions 4 to 7 in section A are two marks questions. These are to be answered in about 30 words each.

(vii) Questions 8 to 19 in section A are three marks questions. These are to be answered in about 50 words each.

(viii) Questions 20 to 24 in section A are five marks questions. These are to be answered in about 70 words each.

(ix) Questions 25 to 42 in section B are multiple choice questions based on practical skills. Each question is a one mark question. You are to select one most appropriate response out of the four provided to you.

Section - A

1. In a high jump athletic event the athletes are made to fall on a cushioned bed. Why ?

2. The earth attracts the moon. Does the moon also attract the earth ? If it does, why does the earth not move towards the moon ?

3. A circular track has a circumference of 1570 m with AB as one of its diameter. A scooterist moves from A to B along the circular path with a uniform speed of 5 m/s. Find the :

    (a) distance covered by the scooterist,

    (b) displacement of the scooterist (Given Љ=3.14),

    (c) time taken by the scooterist in reaching from A to B.

4. Two forces F1 and F2 are acting on an object as shown in the figure.

    (i) What is the net force acting in the object ?

    (ii) What is the direction of the net force acting on the object ?

    (iii) If the mass of body is 10 kg what will be the acceleration produced in it ?

5. A ball is thrown vertically upwards and reaches a maximum height in 3 seconds. Find :

    (a) The velocity with which it was thrown upwards.

    (b) the maximum height attained by the ball.

6. (a) Mention any two examples which can be explained on the basis of third law of motion.

    (b) A hammer of mass 500 g moving at 50m/s, strikes a nail. The nail stops the hammer in a very short time of 0.01s. What is the force of the nail on the hammer ?

7. An imaginary planet has a mass 5 times and radius 3 times that of earth. What is the acceleration due to gravity on the planet, if the acceleration due to gravity on earth is 10 m/s2 ?

8. (a) State Newton’s 1st and 3rd law of motion.

    (b) A car of mass 1800 kg moving with a speed of 10 m/s is brought to rest after a covering a distance of 50 m. Calculate the force acting on the car.

9. An object starts linear motion with a velocity ‘u’ and under uniform acceleration ‘a’ it acquires a velocity ‘v’ in time ‘t’. Draw its velocity time graph. From this graph obtain the following equations.

    (a) v=u+at

    (b) s=ut+½at²

Please refer to attached file for CBSE Class 9 Physics Question Paper SA1 2011 (2)