Assignment_ch1 01. If an object covers equal distances in equal intervals of time, it is said to be in (A) Non-uniform Motion (D) Circular Motion

(B) Oscillatory Motion

(C) Uniform Motion

02. If the body in motion has final velocity v and initial velocity u then in which of the following case the value of acceleration? (A) u > v

(B) v > u+1

(C) v > u

(D) v = u

03. If the distance travelled by an object is directly proportional to time, it is said to have: (A) Constant speed acceleration

(B) Uniform velocity

(C) Constant retardation

(D) Constant

04. In distance-time graphs (A) Straight line indicates non-uniform motion (C) Time is taken along the Y-axis

(B) Distance is taken along the X- axis

(D) Straight line indicates uniform motion

05. In the velocity-time graphs, the distance is given by (A) The slope of the line

(B) The area enclosed by the velocity-time graph and Y-axis

(C) The area enclosed by the velocity-time graph and X-axis graph line

(D) The length of the

06. In velocity-time graphs (A) straight line indicates non-uniform acceleration (B) Straight line allel to Y-axis indicates uniform motion (C) Velocity is taken along the X-axis and time is taken along the Y-axis (D) Velocity is taken along the Y-axis and time is taken along the X-axis 07. In which of the following case the value of average speed and average velocity will be equal? (A) Vehicle travel at the speed of 40 km/hr

(B) Vehicle at ticular time takes'U' turn and starts doing motion in opposite direction (C) vehicle takes left turns at the cross roads. km/hr on circular path.

(D) Vehicle travels at the speed of 30

08. Increasing slope of velocity-time graph indicates: (A) An increasing distance acceleration

(B) An increasing velocity

(C) An increasing

(D) Decreasing distance 09 . Jaiprakash cover 100 m in 10sec in running race. Find the average speed in km/hr? (A) 36 km/hr

(B) 3.6 km/hr

(C) 10 km/hr

(D) 100 km/hr

10. Magnitude of average speed of an object is equal to its average velocity if (A) It is moving in a definite direction equal distances

(B) It is a uniform motion

(C) They travel

(D) Its initial and final positions are same

11. Motion of a satellite in circular orbit is an example of (A) Linear motion motion

(B) Accelerated circular motion

(C) Non-uniform circular

(D) Uniform circular motion

12. Motion of an object is the change in position with respect to a reference point, also known as (A) Initial position

(B) Final position

(C) Distance

(D) Origin

13. A cyclist moves around a circular track of radius 105 metres, once every 2 minutes, his speed is_____. (p = 22/7) (A) 8.5 m/s

(B) 5.5 m/s

(C) 4.5 m/s

(D) 6.5 m/s

14. A fixed point with respect to which we can describe the position of a body is called a/an? (A) Displacement

(B) Velocity

(C) Average Speed

(D) Origine(Fixed Point)

15. A jeep starts from rest and attains a speed of 40 km h-1 in 10 minutes. The uniform acceleration will be (A) 66.7 m s-2

(B) 4 km m-1

(C) 4 km h-1

(D) 66.7 m s-1

16. A man moved 6 m in south and then turned towards east to move 8 m. What is the distance travelled by the man and the displacement of the man? (A) Distance= 6 m, Displacement= 8 m (B) Distance= 14 m, Displacement= 10 m (C) Distance= 14 m, Displacement= 8 m

(D) Distance= 14 m, Displacement= 14 m

17. A scooterist moves along a straight path, for 20 min, at 30km/h. How much distance did he travel? (A) 1.5 km

(B) 10 km

(C) 90 km

(D) 6 km

18. A sprinter completes the one round along a circular path of 25 m,radius his displacement is? (A) 0 m

(B) 50 m

(C) 25 m

(D) 157 m

19. A train travels 40 km at a uniform speed of 30 km h-1. Its average speed after travelling another 40 km is 45 km h-1 for the whole journey. Its speed in the second half of the journey is (A) 60 km h-1

(B) 30 km h-1

(C) 90 km h-1

(D) 45 km h-1

20. A vehicle, along a straight path travels some distance at 20 km/h in time t and some more distance at 30km/h in the same time. What is his average speed? (A) 50 km/hr

(B) 12 km/hr

(C) 25 km/hr

(D) 24 km/hr

21. Ajay goes from one end from a semicircular path to other end and the radius of semicircular path is 50 m.Find the displacement by second hand in one minute? (A) 100 m

(B) 0 m

(C) 314 m

(D) 157 m

22. An athletes completes one and a half lap around the circular track. The displacement of the athlete is _____. (A) ½ * circumference of the track the track (D) Diameter of the track

(B) Radius of the track

(C) Circumference of

23. An object has travelled 10 km in 15 minutes, its displacement will be (A) Cannot be predicted

(B) More than 10 km

(C) Can be zero

(D) 10 km

24. Area under velocity time graph indicates: (A) Both magnitude and direction of displacement (C) Magnitude of acceleration

(B) Magnitude of displacement

(D) Both magnitude and direction of acceleration

25. Average speed of a car is 50 km h-1. It can also be expressed in S.I. Units as (A) 50 m s-1

(B) 5 m s-1

(C) 139 m s-1

(D) 13.9 m s-1

26. Average speed of an object is obtained by (A) Half of the total distance multiplied by the total time (B) Dividing the total distance travelled by the total time taken (C) Half of the sum of the initial speed and the final speed (D) Multiplying total distance with the total time.

27. Chirayu takes 20 minutes to travel a distance of 16 km by his car? (A) 8 km/h

(B) 48 km/h

(C) 0.8 km/h

(D) 48 km/h

28. Convert Km/h2 into m/s2: (A) (5/324)

(B) (5/18)

(C) (5/54)

(D) (5/36)

29. Displacement is a ________ quantity. (A) Derived

(B) Linear

(C) Vector

(D) Scalar

30. Displacement is the (A) Distance travelled by the object in a unit time and final positions

(B) Shortest distance between initial

(C) The actual distance between initial and final positions the object

(D) The distance travelled by

31. Distance-time graph is a straight line for __________ motion (A) Variable

(B) Circular

(C) Rectilinear

(D) Non-uniform

32. For a body in motion, distance → time graph is parabolic (half). State the type of the motion. (A) Uniform motion constant velocity

(B) Motion with constant acceleration

(C) None (D) Motion with

33. Negative acceleration means an object is moving with (A) constant speed speed

(B) increasing speed

(C) decreasing speed

(D) uniform

34. Negative value of acceleration signifies (A) The velocity is increasing is decreasing

(B) The velocity remains the same

(C) The velocity

(D) The object comes to rest 35.Nirav is noting kilometre from the auto meter of a bike while going outside. Auto meter shows 2450 km. How many kilometresthe auto meter shows if he does linear motion at the Constance speed of 50 km/hr 30 minutes? (A) 2475 km

(B) 2500 km

(C) 2425 km

(D) 2460 km

36. Retardation is: (A) Negative acceleration (B) Rate of increase of velocity acceleration (D) Rate of increase in speed 37. S.I. Unit of speed is (A) km h-1 (B) cm s-1

(C) h Km-1

(C) Positive

(D) m s-1

38. Scalar quantity is described by its: (A) direction only (D) magnitude only

(B) magnitude and direction

(C) velocity and time

39. Speed is a (A) Fixed quantity quantity

(B) Vector quantity

(C) Scalar quantity

(D) Unequal

40. The distance covered by a body in unit time is called _____. (A) Acceleration

(B) Displacement

(C) Speed

(D) Velocity

41. The first equation of motion is _____. (A) V = ut + at

(C) V = u – at

(B) V = u + at

(D) V = ( u + at ) / 2

42. The hand of second hand of a clock is 5 cm. Find the displacement by second hand in one minute? (A) 0 cm

(B) 31.4 cm

(C) 15.70 cm

(D) 10 cm

43. The moon moves in uniform circular motion around the earth and the force which keeps the moon in circular orbit is: (A) The force of reaction of ground (B) The force of friction gravity (D) The magnetic force

(C) The force of

44. The rate of change of displacement is _____. (A) Retardation

(B) Acceleration

(C) Velocity

(D) Speed

45. The SI unit of displacement is _____. (A) m/s

(B) m/s2

(C) km

(D) m

46. The SI unit of velocity is _____. (A) m/s

(B) m/s2

(C) m

(D) ms2

47. The slope of velocity-time graph gives the _____. (A) Velocity of the body

(B) Speed of the body

(C) Acceleration of the body

(D) Direction of the body 48. The speed of a car is 35 km/h and in 12 minutes it travels a distance of _____. (A) 21 km

(B) 3.6 km

(C) 16 km

(D) 7 km

49. The time taken by the tip of second hand of a clock to move one full round on circular dial is 60 second. The speed of second hand is _____. (A) 0.01 m/s

(B) 0.011 m/s

(C) 0.021 m/s

(D) 0.02 m/s

50. The type of motion in which a body has constant speed but not constant velocity is: (A) Uniform circular motion in a straight line (D) Non uniform motion

(B) Uniform linear motion

(C) Non uniform motion

51. The value of acceleration if velocity-time graph is a straight line parallel to time axis is: (A) Cannot be predicted

(B) Zero

(C) One

(D) Infinity

52. The velocity-time graph of a body having non-uniform acceleration is _____. (A) A line allel to Y-axis to X- axis

(B) A curved line

(C) A straight line (D) A line parallel

53. Two cars A and B covered 40 Km and 60 Km in 2 hours and 3 hours respectively. Which of the following is moving faster? (A) Car B (B) Cannot be predicted from the given data (C) Both are moving with same velocity (D) Car A 54. Uniform acceleration of a car is 4 m/s2. The distance covered in 10 s after start is _____. (A) 100 m

(B) 400 m

(C) 200 m

(D) 300 m

55. Velocity is the speed of an object moving (A) In any direction Reverse direction

(B) In circular direction

(C) In a definite direction (D)

56. What is acceleration? (A) Rate of change in position in speed

(B) Rate of change in velocity

(C) Rate of change

(D) Rate of change of displacement 57. What is constant for a body for a uniform circular motion? (A) Acceleration

(B) Velocity

(C) Speed

(D) Displacement

58. What is required to describe displacement? (A) None

(B) Direction

(C) Value

(D) Value and direction

59. What is the acceleration of body moving with uniform velocity? (A) Infinitive

(B) Zero

(C) Negative

(D) Positive

60. What is the corresponding speed of 72 km/h in m/s? (A) 36 m/s

(B) 20 m/s

(C) 10 m/s

(D) 72 m/s

61. What is the SI unit of distance or displacement? (A) second

(B) meter.second

(C) Metre/second

(D) Meter

62. What is the value of 10 m/s in km/h? (A) 0.6 km/h

(B) 600 km/h

(C) 36 km/h

(D) 2.77 km/h

63. When an object does motion with constant velocity then? (A) none of the above should be constant

(B) its direction of velocity should not be changed (C) its speed

(D) its speed should be constant and direction of velocity should not be changed 64. When an object does uniform motion then? (A) it covers equal distance in different intervals of time (B) it cover doesn't cover equal distance in equal intervals of time (C) it covers equal distance in equal intervals of time (D) if doesn't cover equal distance in different intervals of time. 65. When an object moves with constant speed then? (A) covers equal distance in equal interval of time (B) doesn't cover equal distance in different intervals of time. (C) doesn't cover equal distance in equal intervals of time (D) covers equal distance in different intervals of time. 66. Which of the following is not true for uniform motion? (A) object moving with uniformspeedon straight path (C) Revolution of earth around sun

(B) motion of train

(D) Motion of second hand in clock

67. Which of the following is relative physical quantity? (A) Mass

(B) Length

(C) Time

(D) Motion

68. Which of the following is scalar quantity? (A) density

(B) Area

(C) Velocity

(D) Acceleration

69. Which of the following is scalar quantity? (A) Displacement

(B) Speed

(C) Velocity

(D) Acceleration

70. Which of the following is the vector quantity? (A) Work

(B) Temperature

(C) Velocity

(D) Speed

71. Which of the following is true for a body doing uniform circular motion? (A) Speed is constant and velocity changes (C) Acceleration is zero

(B) Speed and velocity both changes.

(D) Speed and velocity both are constant

72. Which of the following is true for an accelerated motion? (A) Velocity of the body increase continuously (C) Speed of the body fluctuates

(B) Velocity of the body is uniform

(D) Velocity of the body decrease continuously

73. Which physical quantity varies in a uniform circular motion (A) Both velocity and acceleration

(B) Acceleration

(C) Speed

(D) Velocity

74. Which type of motion a body shows if the graph of distance → time is a straight line? (A) Steady

(B) Accelerated

(C) Non-uniform

(D) Uniform motion

75. Which value the area convered by speed → time graph shows? (A) Distance

(B) Velocity

(C) Acceleration

(D) Time

Answers: 01 : A B C C D   04 : A B C C D   07 : A B C C D   10 : A B C C D   13 : A B C C D   16 : A B C C D   19 : A B C C D   22 : A B C C D   25 : A B C C D   28 : A B C C D   31 : A B C C D   34 : A B C C D   37 : A B C C D   40 : A B C C D   43 : A B C C D   46 : A B C

D  02 : A B C D  03 : A B D  05 : A B C D  06 : A B D  08 : A B C D  09 : A B D  11 : A B C D  12 : A B D  14 : A B C D  15 : A B D  17 : A B C D  18 : A B D  20 : A B C D  21 : A B D  23 : A B C D  24 : A B D  26 : A B C D  27 : A B D  29 : A B C D  30 : A B D  32 : A B C D  33 : A B D  35 : A B C D  36 : A B D  38 : A B C D  39 : A B D  41 : A B C D  42 : A B D  44 : A B C D  45 : A B D  47 : A B C D  48 : A B

C D   49 : A B C C D   52 : A B C C D   55 : A B C C D   58 : A B C C D   61 : A B C C D   64 : A B C C D   67 : A B C C D   70 : A B C C D   73 : A B C C D 

D  50 : A B C D  51 : A B D  53 : A B C D  54 : A B D  56 : A B C D  57 : A B D  59 : A B C D  60 : A B D  62 : A B C D  63 : A B D  65 : A B C D  66 : A B D  68 : A B C D  69 : A B D  71 : A B C D  72 : A B D  74 : A B C D  75 : A B