Physics :Term I Exam Revision Test Paper

Term I Exam Revision Test Paper 1 Class XI Subject Physics Time 1.5 hr Multiple Choice Questions Dated: 29.11.2021 MM 35 Instructions: 1.Question paper has 35 multiple choice questions carrying 1 mark each. 2. Each question is compulsory. 

1. Which of the following is one dimensional motion: 

• (a) Landing of an aircraft 
• (b) Earth revolving around the sun 
•  (c) Motion of a wheel of moving train 
• (d) Train running on a straight track.

2. The numerical value of the ratio of displacement to distance is: 

• (a) Always less than one 
• (b) Always equal to one 
• (c) Always more than one 
• (d) Equal to or less than one 

3. The area under velocity-time graph for a particle in a given interval of time represents 

• (a) Speed 
• (b) Displacement 
• (c) Average velocity 
• (d) Acceleration   

4. A car at rest accelerates uniformly to a speed of 40 ms⁻¹ in 20 s. How much distance is covered by the car? 

• (a) 400 m 
• (b) 200 m 
• (c) 400 cm 
• (d) 200 cm   

5. When a projectile is fired with a velocity u parallel to the horizontal, then time of flight T is given by 

• (a) T=√2h/g 
• (b) T=√g/2h 
• (c) T=√h/g 
• (d) 2u sinθ/g  

6. If the time of flight of a projectile is doubled, the maximum height attained will be : 

• (a) Unchanged 
• (b) Halved 
• (c) Doubled 
• (d) Four times  

7. Which of the following statement for an object in equilibrium is not true? 

• (a)The object must be at rest 
• (b) The object can be at rest 
•  (c) The object is moving at constant speed 
• (d) The acceleration of object is zero 

8. From the foot of a tower 90m high, a stone is thrown up so as to just reach the top of the tower. Find the velocity with which the stone is thrown (Take g = 9.8 ms⁻²). 

• (a) 42 m / s 
• (b) 1764 m / s 
• (c ) 90m / s 
• (d) 0 m / s 

9. A wheel is 0.60 m in radius is moving with a speed of 10 ms⁻¹ .Find the angular speed. 

• (a) 16 rad 
• (b)16.67 rad s⁻¹ 
• (c) 16 rad s 
• (d)16.67 rad s⁻²

10. The magnitude of the resultant of two vectors P and Q is given by R² = P² + Q². What is the angle between Vectors P and Q? 

• (a) 30° 
•  (b) 60°  
•  (c) 45°  
•  (d) 90°     

11. Ratio of gravitational force, electromagnetic force and nuclear force is 

 (a) 1:10²⁵:10³⁶

 (b) 1: 10³⁶:10³⁸

 (c) 10²⁵:10³⁶:10³⁸ 

 (d)1:10¹³:10²⁵ 

12. According to principle of homogeneity of dimensions 

• (a) Dimensions of numerator and denominator in a term are same 
•  (b) If the dimensions of all the terms are not same, then equation is wrong. 
• (c) In an equation, dimensions of all the terms need not be same. 
• (d) In an equation, dimensions of at least two terms should be equal 

 13. The number of significant figure in 3.04 × 10²³ is : 

• (a) 2 
• (b) 3 
• (c) 23 
• (d) 25 

14. The dimensional formula of impulse is same as the dimensional formula for :- 

• (a) Momentum 
• (b) Force 
• (c) Torque 
• (d) rate of change of momentum 

15. In SI system the fundamental units are :-

 

• (a) Meter, kilogram, second, coulomb, Kelvin, mole and candela 
• (b) Meter, Newton, second, ampere, Kelvin, candela and mole 
• (c) Meter, kilogram, second, ampere, Kelvin, mole and candela 
• (d) Meter, kilogram, second, ohm, Kelvin, mole and candela 

16. If ‘h’ is the height and ‘g’ is acceleration due to gravity, the dimensional formula of √ 2ℎ /𝑔 is the same as that of :- 

• (a) Time 
• (b) Mass 
• (c) Volume 
• (d) velocity 
  

17. The angle between limiting friction F and normal friction R is 

•  (a) 0° 
• (b) 180°
•  (c) 90°
• (d) between 0° and 90°

 18. The centripetal force for a car moving on a level road is given by 

• (a)friction force between the tyres and road 
• (b) force of brakes 
• (c) the driver of the car 
• (d) the engine of the car 

19.When a car moving in a fixed direction accelerates 

•  (a) The frictional force acts on it in the direction opposite to the direction of motion 
•  (b) The frictional force acts on it in the same direction as direction of motion 
•  (c) Frictional force is not required. The engine of the car gives the force needed. 
• (d) No force is required due to inertia of motion. The car accelerates by itself. 

 20. Which of the following forces is not a contact force? 

• (a) tension in a string 
• (b) force in a spring 
• (c) friction force 
• (d) gravitational force 

 21. The banking of roads and rails is done to 

•  (a) save material and make the road construction economical 
•  (b) to give good look to the roads and rails 
•  (c) to provide centripetal acceleration and make high speed roads and rails 
•  (d) to make a stint  

22. When forces F₁ , F ₂and F₃ are acting on a particle of mass m such that F₂ and F₃ , are mutually perpendicular, then the particle remain stationary, if the force F₁ is now removed then the magnitude of acceleration of the particle is: 

• (a) F₁/m 
• (b) F₂ F/₃M 
• c) (F₂  – F₃)/m 
• d) F₂ /m 

23. According to work energy theorem, work done by the net force on a particle is equal to change in its 

• (a) Linear Momentum 
• (b) Angular Momentum 
• (c) Velocity 
• (d) Kinetic Energy 

24. Time rate of change of Kinetic energy is equal to 

• (a) Mass 
• (b) Force 
• (c) Work 
• (d) Power 

25. 1 eV =____________ J 

• (a) 1.6×10⁻¹⁸J 
• (b) 1.6×10⁻¹⁹J 
• (c) 1.6×10⁻⁻²¹J 
• (d) 1.6×10⁻¹⁶J 

26. A man pushes a wall and fails to displace it. Work done by him is: 

• (a) Zero 
• (b) Negative
• (c) Maximum 
• (d) Positive but not maximum 

 27. Four particles given here have same linear momentum, which has maximum Kinetic energy? 

• (a) proton 
• (b) electron 
• (c) deutron 
• (d) alpha particle 

28. A man of mass 60 kg runs up a flight of 30 steps in 40 seconds. If each step is 20 cm high, calculate the power of the man 

• (a) 80 W 
• (b) 92 W 
• (c) 88.2 W 
• (d) 82 W  

 29. A body of mass 50ɡ is moving once round a horizontal circle of radius 5 cm with uniform speed. How much work has been done? 

• (a) 50 J 
• (b)100 J 
• (c) 0 J 
• (d) None of these 

30. Analogue of mass in rotational motion is: 

• (a) Moment of inertia 
• (b) Angular Momentum 
• (c) Torque 
• (d) None of these 

31. A circular disc has mass M and radius R. Moment of inertia about its diameter will be: 

• (a) 2/5MR² 
• (b) 1/4 MR²  
• (c) 1/2 MR²  
• (d) MR² 

 32. When a mass M is rotating in a plane about a fixed point O, it's angular momentum L is directed along 

• (a) a line perpendicular to the plane of rotation 
• (b) the radius. 
• (c) the tangent to the orbit 
• (d) None of these. 

33. A body A of mass M while falling vertically downwards under gravity breaks into two parts; a body B of mass M/3 and a body C of mass 2M/3. The center of mass of bodies B and C taken together shifts compared to that of body A towards. 

• (a) Does not shift 
• (b) depends on height of breaking 
• (c) body C 
• (d) body B 

34. The angular velocity of a planet revolving in an elliptical orbit around the sun increases, when it comes near the sun and vice-versa. This process better explained on the basis of law of conservation of:  

• (a) Mass 
• (b) Linear Momentum 
• (c) Angular Momentum 
• (d) Energy 

35. A solid cylinder of moment of inertia 0.625 kg m² rotates about its axis with angular speed 100 rad s⁻¹ . What is the magnitude of angular momentum of the cylinder about its axis? 

•  (a) 62.5 kgm² s ⁻¹
•  (b) 625×104 kgm² s ⁻¹
• (c) 6.25 kgm² s⁻¹
•  (d) 625×105 kgm² s⁻¹