Goo Goo Dolls
Sample Paper – 2011
Class – XI
Subject – Physics
Time: 3 Hrs. MM : 70
General Instructions:
i) All questions are compulsory.
ii) There are 30 questions in total. Questions 1 to 8 carry one mark each, questions 9 to 18 carry two marks each, questions 19 to 27 carry three marks each and questions 28 to 30 carry five marks each.
iii) There is no overall choice. However, an internal choice has been provided in one question of two marks, one question of three marks and ONE question of five marks each. You have to attempt only one of the given choices in such questions.
iv) Use of calculators is not permitted.
1. Name a physical quantity which has dimensions ML² T¯¹.
2. The speed of an object can never be negative. Why?
3. Why the work done by centripetal force is zero ?
4. You are given two spheres of the same mass, size and appearance, but one of them is solid while the other hollow. If they are allowed to roll down an incline which One will reach the bottom first?
5. What is the nature of motion of an object falling freely under the action of gravity.?
6. A car and a truck are moving on a level road so that their linear momenta are equal. Which one is moving faster?
7. what happens to coefficient of friction when the weight of a body is doubled ?
8. What is the moment of inertia of a solid sphere about its diameter?
9. Define uniform velocity of an object moving along a straight line. What will be shape of velocity time and position time graphs of such a motion?
10. Why fruits fall down from a tree, when its branches are
shaken? OR
Why is spring made of steel not of copper?
11. A light body and a heavy body have the same momentum . Which one will have greater kinetic energy? Justify.
12. A projectile is thrown with a velocity 5 ms¯¹at an angle of 30º with the horizontal .
Class – XI
Subject – Physics
Time: 3 Hrs. MM : 70
General Instructions:
i) All questions are compulsory.
ii) There are 30 questions in total. Questions 1 to 8 carry one mark each, questions 9 to 18 carry two marks each, questions 19 to 27 carry three marks each and questions 28 to 30 carry five marks each.
iii) There is no overall choice. However, an internal choice has been provided in one question of two marks, one question of three marks and ONE question of five marks each. You have to attempt only one of the given choices in such questions.
iv) Use of calculators is not permitted.
1. Name a physical quantity which has dimensions ML² T¯¹.
2. The speed of an object can never be negative. Why?
3. Why the work done by centripetal force is zero ?
4. You are given two spheres of the same mass, size and appearance, but one of them is solid while the other hollow. If they are allowed to roll down an incline which One will reach the bottom first?
5. What is the nature of motion of an object falling freely under the action of gravity.?
6. A car and a truck are moving on a level road so that their linear momenta are equal. Which one is moving faster?
7. what happens to coefficient of friction when the weight of a body is doubled ?
8. What is the moment of inertia of a solid sphere about its diameter?
9. Define uniform velocity of an object moving along a straight line. What will be shape of velocity time and position time graphs of such a motion?
10. Why fruits fall down from a tree, when its branches are
shaken? OR
Why is spring made of steel not of copper?
11. A light body and a heavy body have the same momentum . Which one will have greater kinetic energy? Justify.
12. A projectile is thrown with a velocity 5 ms¯¹at an angle of 30º with the horizontal .