{"id":16662,"date":"2021-08-16T11:04:12","date_gmt":"2021-08-16T05:34:12","guid":{"rendered":"https:\/\/apboardsolutions.guru\/?p=16662"},"modified":"2021-09-15T21:14:10","modified_gmt":"2021-09-15T15:44:10","slug":"ap-9th-class-physical-science-bits-chapter-1","status":"publish","type":"post","link":"https:\/\/apboardsolutions.guru\/ap-9th-class-physical-science-bits-chapter-1\/","title":{"rendered":"AP 9th Class Physical Science Bits Chapter 1 Motion with Answers"},"content":{"rendered":"

Practice the AP 9th Class Physical Science Bits with Answers<\/a> Chapter 1 Motion on a regular basis so that you can attempt exams with utmost confidence.<\/p>\n

AP State Syllabus 9th Class Physical Science Bits 1st Lesson Motion with Answers<\/h2>\n

Question 1.
\nA body released from height ‘h’ takes time’t’ to reach the ground. After time t\/2, its height from the ground is
\nA) \\(\\frac{\\mathrm{h}}{2}\\)
\nB) \\(\\frac{\\mathrm{h}}{4}\\)
\nC) \\(\\frac{3 h}{4}\\)
\nD) \\(\\frac{\\mathrm{h}}{3}\\)
\nAnswer:
\nC) \\(\\frac{3 h}{4}\\)<\/p>\n

Question 2.
\nWhich of the following is correct ?
\nA) Distance \u2265 Displacement
\nB) \\(\\frac{\\text { Distance }}{\\text { Displacement }}\\) \u2265 1
\nC) Both A & B
\nD) None
\nAnswer:
\nC) Both A & B<\/p>\n

\"AP<\/p>\n

Question 3.
\nRatio of the distance travelled in 1 second, 2 seconds, 3 seconds
\nA) 12<\/sup> : 22<\/sup> : 32<\/sup>
\nB) 1 : 3 : 5
\nC) 1 : 2 : 3
\nD) 1: 5 : 9
\nAnswer:
\nA) 12<\/sup> : 22<\/sup> : 32<\/sup><\/p>\n

Question 4.
\nWhich of the following is correct ?
\nA) Acceleration due to gravity in vacuum is the same irrespective of size and mass of body.
\nB) Acceleration in vacuum is absent.
\nC) Acceleration due to gravity in vacuum depends on mass.
\nD) Acceleration due to gravity is zero at poles.
\nAnswer:
\nA) Acceleration due to gravity in vacuum is the same irrespective of size and mass of body.<\/p>\n

Question 5.
\nIf a body is projected horizontally from the top of a tower the time taken by it to reach the ground depends upon
\nA) velocity of projection
\nB) height of the tower
\nC) both A & B
\nD) neither of these two
\nAnswer:
\nB) height of the tower<\/p>\n

Question 6.
\nBoth average velocity and average instantaneous velocity are equal when a body is moving with
\nA) uniform velocity in same direction
\nB) uniform velocity in different directions
\nC) uniform acceleration
\nD) none
\nAnswer:
\nA) uniform velocity in same direction<\/p>\n

Question 7.
\nA body projected vertically with a velocity ‘u’ from ground. Its velocity
\nA) at half of maximum height is \\(\\frac{\\mathrm{u}}{2}\\)
\nB) at \\(\\frac{3^{\\text {th }}}{4}\\) of maximum height is \\(\\frac{\\mathrm{u}}{\\sqrt{2}}\\)
\nC) at \\(\\frac{1}{3}^{\\mathrm{rd}}\\) of maximum height is \\(\\sqrt{\\frac{2}{3}}\\) u
\nD) at \\(\\frac{1^{\\text {th }}}{4}\\) of maximum height is \\(\\frac{\\sqrt{2}}{3}\\) u
\nAnswer:
\nC) at \\(\\frac{1}{3}^{\\mathrm{rd}}\\) of maximum height is \\(\\sqrt{\\frac{2}{3}}\\) u<\/p>\n

Question 8.
\nA freely falling body describes a distance x in first 2 seconds and a distance y in next 2 seconds. Then
\nA) y = x
\nB) y = 2x
\nC) x = 2y
\nD) y = 3x
\nAnswer:
\nD) y = 3x<\/p>\n

Question 9.
\nThe height from which a body is released is numerically equal to the velocity acquired finally. Then that height is
\nA) g
\nB) 2g
\nC) 4g
\nD) 8g
\nAnswer:
\nB) 2g<\/p>\n

\"AP<\/p>\n

Question 10.
\nA physical quantity with magnitude as well as direction is called ………………. quantity.
\nA) scalar
\nB) vector
\nC) linear
\nD) none of these
\nAnswer:
\nB) vector<\/p>\n

Question 11.
\nSpeed of a body at any particular instance is known as ………………….
\nA) velocity
\nB) average speed
\nC) instantaneous speed
\nD) none of these
\nAnswer:
\nC) instantaneous speed<\/p>\n

Question 12.
\nThe physical quantity with only magnitude is called ………………….
\nA) scalar
\nB) vector
\nC) axial
\nD) linear
\nAnswer:
\nA) scalar<\/p>\n

Question 13.
\nInstantaneous speed can be represented by ………………… of the curve at a given instant of time.
\nA) distance
\nB) midpoint
\nC) slope
\nD) none of these
\nAnswer:
\nC) slope<\/p>\n

Question 14.
\nAverage speed = ………………….
\nA) \\(\\frac{\\text { Total distance }}{\\text { Time taken }}\\)
\nB) \\(\\frac{\\text { Total time }}{\\text { Total distance }}\\)
\nC) \\(\\frac{\\text { Total displacement }}{\\text { Total time }}\\)
\nD) \\(\\frac{\\text { Total time }}{\\text { Total displacement }}\\)
\nAnswer:
\nA) \\(\\frac{\\text { Total distance }}{\\text { Time taken }}\\)<\/p>\n

Question 15.
\nStatement – I : 1 km\/hr = \\(\\frac{5}{18}\\) m\/s
\nStatement – II: 1 m\/s = \\(\\frac{18}{5}\\) km\/hr
\nA) Both the statements are true.
\nB) Both the statements are false.
\nC) Statement -1 is true and statement – II is false.
\nD) Statement -1 is false and statement – II is true.
\nAnswer:
\nA) Both the statements are true.<\/p>\n

Question 16.
\nIn …………………. motion distance and displacement are same.
\nA) curvilinear
\nB) rotational
\nC) vibrational
\nD) rectilinear
\nAnswer:
\nD) rectilinear<\/p>\n

\"AP<\/p>\n

Question 17
\n…………….. is the rate of change of velocity.
\nA) Displacement
\nB) Velocity
\nC) Acceleration
\nD) Momentum
\nAnswer:
\nC) Acceleration<\/p>\n

Question 18.
\nNegative acceleration is called …………………..
\nA) deceleration
\nB) retardation
\nC) both A & B
\nD) neither A nor B
\nAnswer:
\nC) both A & B<\/p>\n

Question 19.
\nIf the speed of an object decreases, the direction of velocity and acceleration are in ………………….. direction.
\nA) same
\nB) opposite
\nC) unable to say
\nD) none of these
\nAnswer:
\nA) same<\/p>\n

Question 20.
\nIf an object moves constant velocity then acceleration is …………………….
\nA) positive
\nB) negative
\nC) zero
\nD) none of these
\nAnswer:
\nC) zero<\/p>\n

Question 21.
\nAt maximum height the final velocity is …………………….
\nA) u
\nB) \\(\\frac{\\mathbf{u}^{2}}{2 \\mathrm{~g}}\\)
\nC) \\(\\frac{2 \\mathrm{u}}{\\mathrm{g}}\\)
\nD) zero
\nAnswer:
\nD) zero<\/p>\n

Question 22.
\nA body is projected horizontally with a velocity \\(\\sqrt{29}\\) m\/s from a height 10 m, the velocity on reaching the ground ……………… m\/s.
\nA) \\(\\sqrt{29}\\)
\nB) 10
\nC) 15
\nD) 20
\nAnswer:
\nC) 15<\/p>\n

Question 23.
\nSpeed in specified direction is called …………………..
\nA) displacement
\nB) velocity
\nC) acceleration
\nD) momentum
\nAnswer:
\nB) velocity<\/p>\n

\"AP<\/p>\n

Question 24.
\nIf an ant completes one circular motion, then the displacement is
\nA) 2\u03c0r
\nB) \u03c0r
\nC) 4\u03c0r
\nD) zero
\nAnswer:
\nD) zero<\/p>\n

Question 25.
\nWhen a train comes to rest, then the acceleration is …………………..
\nA) positive
\nB) negative
\nC) maximum
\nD) none of these
\nAnswer:
\nB) negative<\/p>\n

Question 26.
\nDirection of acceleration is along the direction of ………………………….
\nA) velocity
\nB) constant velocity
\nC) increase in velocity
\nD) all the above
\nAnswer:
\nA) velocity<\/p>\n

Question 27.
\nThe motion is said to be ……………….. if acceleration is constant.
\nA) uniform motion
\nB) uniform accelerated motion
\nC) non-uniform accelerated motion
\nD) none of these
\nAnswer:
\nB) uniform accelerated motion<\/p>\n

Question 28.
\nThe S.I unit of acceleration is ……………….
\nA) m
\nB) m\/s
\nC) m\/s2<\/sup>
\nD) m2<\/sup>\/s
\nAnswer:
\nC) m\/s2<\/sup><\/p>\n

Question 29.
\nIf the direction of velocity changes continuously and speed remains constant, then the body will be in ………………… motion.
\nA) circular
\nB) rotatory
\nC) non-uniform circular
\nD) uniform circular
\nAnswer:
\nD) uniform circular<\/p>\n

Question 30.
\nThe unit of distance is
\nA) m
\nB) s
\nC) kg
\nD) m\/s
\nAnswer:
\nA) m<\/p>\n

\"AP<\/p>\n

Question 31.
\nThe unit of speed is
\nA) m
\nB) m\/s
\nC) m\/s2<\/sup>
\nD) m2<\/sup>\/s
\nAnswer:
\nB) m\/s<\/p>\n

Question 32.
\nThe unit of force is ……………………
\nA) kg
\nB) Newton
\nC) Kelvin
\nD) kg m\/s
\nAnswer:
\nB) Newton<\/p>\n

Question 33.
\nAverage velocity = …………………………
\nA) \\(\\frac{\\text { Total distance }}{\\text { Total time }}\\)
\nB) \\(\\frac{\\text { Total displacement }}{\\text { Total time }}\\)
\nC) Totcil distance \u00d7 Total time
\nD) \\(\\frac{\\text { Total time }}{\\text { Total displacement }}\\)
\nAnswer:
\nB) \\(\\frac{\\text { Total displacement }}{\\text { Total time }}\\)<\/p>\n

Question 34.
\nFirst law of motion is
\nA) v = u + at
\nB) s = ut + \\(\\frac{1}{2}\\)at2<\/sup>
\nC) v2<\/sup> – u2<\/sup> = 2as
\nD) Sn<\/sub>th<\/sup>= u + \\(\\frac{1}{2}\\) a(n – A)
\nAnswer:
\nA) v = u + at<\/p>\n

Question 35.
\nSecond law of motion is ……………………
\nA) v = u + at
\nB) s = ut + \\(\\frac{1}{2}\\)at2<\/sup>
\nC) v2<\/sup> – u2<\/sup> = 2as
\nD) None of these
\nAnswer:
\nB) s = ut + \\(\\frac{1}{2}\\)at2<\/sup><\/p>\n

Question 36.
\nThird law of motion is
\nA) v = u + at
\nB) s = ut + \\(\\frac{1}{2}\\)at2<\/sup>
\nC) v2<\/sup> – u2<\/sup> = 2as
\nD) None of these
\nAnswer:
\nC) v2<\/sup> – u2<\/sup> = 2as<\/p>\n

Question 37.
\nAcceleration = …………………
\nA) a = \\(\\frac{\\mathbf{v}-\\mathbf{u}}{\\mathbf{t}}\\)
\nB) a = \\(\\frac{\\mathrm{d}}{\\mathrm{t}}\\)
\nC) a = \\(\\frac{s}{t}\\)
\nD) a = v \u00d7 t
\nAnswer:
\nA) a = \\(\\frac{\\mathbf{v}-\\mathbf{u}}{\\mathbf{t}}\\)<\/p>\n

\"AP<\/p>\n

Question 38.
\nWhich of the following is a false statement ?
\nA) The motion of an object depends on the position of an observer.
\nB) The rest of an object depends on the position of an observer.
\nC) Motion is relative.
\nD) Rest is not relative.
\nAnswer:
\nD) Rest is not relative.<\/p>\n

Question 39.
\nAssertion (A): Displacement is a vector.
\nReason (R) : Displacement has both magnitude and direction.
\nA) Both A and R are true and R supports A.
\nB) Both A and R are true but R does not support A.
\nC) A is true but R is false.
\nD) A is false but R is true.
\nAnswer:
\nA) Both A and R are true and R supports A.<\/p>\n

Question 40.
\nA particle moved in a circular path and reached to starting point. Then the displacement is
\nA) 2\u03c0r
\nB) \u03c0r2<\/sup>
\nC) zero
\nD) 2r
\nAnswer:
\nC) zero<\/p>\n

Question 41.
\nDistance : meter :: displacement:
\nA) m2<\/sup>
\nB) m\/s
\nC) 1\/m
\nD) m
\nAnswer:
\nD) m<\/p>\n

Question 42.
\nIf the distance between to points is ‘x’ meters, then the displacement is
\nA) = x meters
\nB) > x meters
\nC) < x meters
\nD) A or C
\nAnswer:
\nD) A or C<\/p>\n

Question 43.
\nAverage speed :\\(\\frac{\\text { total distance }}{\\text { time taken }}\\) : : …………….. : \\(\\frac{\\text { displacement }}{\\text { time taken }}\\)
\nA) average velocity
\nB) average acceleration
\nC) average force
\nD) none of the given
\nAnswer:
\nA) average velocity<\/p>\n

Question 44.
\nAverage velocity becomes zero, if a particle move in this way of points.
\nA) A \u2192 B
\nB) A \u2192 B \u2192 C
\nC) A \u2192 B \u2192 C \u2192 B
\nD) A \u2192 B \u2192 C \u2192 A
\nAnswer:
\nD) A \u2192 B \u2192 C \u2192 A<\/p>\n

\"AP<\/p>\n

Question 45.
\nIf the speedometer of a car indicates a constant reading, then the car is in
\nA) uniform motion
\nB) non – uniform motion
\nC) circular motion
\nD) no motion
\nAnswer:
\nA) uniform motion<\/p>\n

Question 46.
\nThe shape of a S – t graph for a nonuniform motion always be
\nA) straight line
\nB) curved line
\nC) A or B
\nD) none
\nAnswer:
\nC) A or B<\/p>\n

Question 47.
\nIf the revolving of earth stops, its path of escaping is
\nA) along the direction of velocity vector
\nB) along the direction of curved path
\nC) along the direction of diameter of the curved path
\nD) we cannot say
\nAnswer:
\nA) along the direction of velocity vector<\/p>\n

Question 48.
\nConsider the motion of the tip of the minute hand of a clock in one hour
\nA) distance is zero
\nB) displacement is zero
\nC) the average speed is zero
\nD) average velocity is non-zero
\nAnswer:
\nA) distance is zero<\/p>\n

Question 49.
\nAn object may have
\nA) varying speed without having varying velocity
\nB) varying velocity without having varying velocity
\nC) non-zero acceleration without having varying velocity
\nD) zero acceleration without having varying speed
\nAnswer:
\nB) varying velocity without having varying velocity<\/p>\n

Question 50.
\nTwo bullets A & B fired simultaneously, horizontally and with different speeds from the same plane. Which bullet will hit the ground first ?
\nA) A
\nB) B
\nC) A and B
\nD) Depend on their masses
\nAnswer:
\nC) A and B<\/p>\n

Question 51.
\nA body is projected vertically up from ground with a speed \\(\\sqrt{\\mathbf{g h}}\\) . The average speed of total motion is
\nA) \\(\\sqrt{\\frac{g h}{2}}\\)
\nB) \\(\\frac{\\sqrt{g h}}{2}\\)
\nC) \\(\\sqrt{2 \\mathrm{gh}}\\)
\nD) none
\nAnswer:
\nB) \\(\\frac{\\sqrt{g h}}{2}\\)<\/p>\n

\"AP<\/p>\n

Question 52.
\nA freely falling body crosses the points A, B and C with velocities v, 2v, 3v. Then AB : AC =
\nA) 1 : 2
\nB) 1 : 3
\nC) 1 : 1
\nD) 3 : 8
\nAnswer:
\nD) 3 : 8<\/p>\n

Question 53.
\nA body falling for 2 sec. covers a distance ‘s’ equals to that covered in next second. If g = 10 m\/s2<\/sup>, s =
\nA) 30 m
\nB) 10 m
\nC) 60 m
\nD) 20 m
\nAnswer:
\nA) 30 m<\/p>\n

Question 54.
\nTake a ball and release it from the top of a inclined plane, what is your observation ?
\nA) Speed of the ball is constant.
\nB) Speed of the ball increases gradually.
\nC) Speed of the ball decreases gradually.
\nD) Speed first increases and then decreases.
\nAnswer:
\nB) Speed of the ball increases gradually.<\/p>\n

Question 55.
\nTie a stone to a rope. Whirl the rope and rotate the stone in a circular path cut the rope. Your observation is
\nA) stone moves along the tangent of the path.
\nB) stone falls in the centre of the path.
\nC) stone takes revers direction.
\nD) none
\nAnswer:
\nA) stone moves along the tangent of the path.<\/p>\n

Question 56.
\nA vector can be represented as a directed line segment in which length indicates ………………….. and arrow indicates ………………..
\nA) magnitude, direction
\nB) direction, magnitude
\nC) magnitude, speed
\nD) speed, velocity
\nAnswer:
\nA) magnitude, direction<\/p>\n

Question 57.
\nThe shape of distance vs time graph for a body which is in uniform motion is ………………….
\nA) curve
\nB) straight line
\nC) zig zag
\nD) none of these
\nAnswer:
\nB) straight line<\/p>\n

\"AP<\/p>\n

Question 58.
\nA car was travelled in the given route. Observe the route.
\nMore distance but least displacement are existed in between ……………. and …………… points.
\n\"AP
\nA) A, B
\nB) A, C
\nC) A, D
\nD) B, D
\nAnswer:
\nC) A, D<\/p>\n

Question 59.<\/p>\n\n\n\n\n\n\n\n
Student<\/td>\nTime taken to reach A to B stations<\/td>\n<\/tr>\n
A<\/td>\n180 sec.<\/td>\n<\/tr>\n
B<\/td>\n230 sec.<\/td>\n<\/tr>\n
C<\/td>\n148 sec.<\/td>\n<\/tr>\n
D<\/td>\n133 sec.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Who has greatest average speed ?
\nA) A
\nB) B
\nC) C
\nD) D
\n\"AP
\nAnswer:
\nD) D<\/p>\n

Question 60.
\nThe average speed between B to C is
\nA) 1.5 m\/s
\nB) 2.5 m\/s
\nC) 2m\/s
\nD) 4m\/s
\nAnswer:
\nB) 2.5 m\/s<\/p>\n

Question 61.
\nIn the above graph speed is high at
\nA) A
\nB) B
\nC) C
\nD) speed is equal
\nAnswer:
\nB) B<\/p>\n

Question 62.
\n\"AP
\nThe s, t graph is
\n\"AP
\nAnswer:
\n\"AP<\/p>\n

Question 63.
\n\"AP
\nThe graph represents
\nA) uniform motion
\nB) non – uniform motion
\nC) no motion
\nD) constant motion
\nAnswer:
\nC) no motion<\/p>\n

Question 64.
\n\"AP
\nThe graph represents
\nA) uniform motion
\nB) non – uniform motion
\nC) no motion
\nD) circular motion
\nAnswer:
\nA) uniform motion<\/p>\n

\"AP<\/p>\n

Question 65.
\n\"AP
\nA particle \u2018x\u2019 travelling in uniform circular motion. Then its
\nA) speed is constant and velocity is also constant.
\nB) speed is constant and velocity changes.
\nC) speed changes and velocity Is con stant.
\nD) speed and velocity are change.
\nAnswer:
\nB) speed is constant and velocity changes.<\/p>\n

Question 66.
\n\"AP
\nFrom the given diagram we can say that the object.
\nA) has maximum speed at ‘C’
\nB) travelled in uniform motion.
\nC) has minimum speed at ‘A’.
\nD) A and C
\nAnswer:
\nD) A and C<\/p>\n

Question 67.
\nv = u + at …………………. 1
\ns = ut + \\(\\frac{1}{2}\\) at2<\/sup> ……………….. 2
\nv2<\/sup> = 2as + u2<\/sup> …………………. 3
\nv2<\/sup> + u2<\/sup> = 2as …………………. 4
\nWhich of the above is not a equation of uniform acceleration ? ( )
\nA) 1
\nB) 3
\nC) 4
\nD) 1, 2, 3
\nAnswer:
\nC) 4<\/p>\n

Question 68.
\nThis graph represents the body is moving with
\n\"AP
\nA) uniform acceleration
\nB) uniform speed
\nC) uniform deceleration
\nD) constant speed
\nAnswer:
\nA) uniform acceleration<\/p>\n

Question 69.
\nA particle moves along the side of a square of length ‘l’ starting from A and reaches the opposite comer ‘C’ by travelling from A to B and B to C in time the average velocity is
\n\"AP
\nA) \\(\\frac{2 l}{\\mathrm{t}}\\)
\nB) \\(\\frac{l}{\\sqrt{2} \\mathrm{t}}\\)
\nC) Zero
\nD) \\(\\frac{\\sqrt{2} l}{t}\\)
\nAnswer:
\nD) \\(\\frac{\\sqrt{2} l}{t}\\)<\/p>\n

Question 70.
\nSlope of the distance vs time graph
\nA) displacement
\nB) speed
\nC) velocity
\nD) acceleration
\nAnswer:
\nB) speed<\/p>\n

Question 71.
\nVector can be represented by
\n\"AP
\nAnswer:
\n\"AP<\/p>\n

\"AP<\/p>\n

Question 72.
\nThe displacement vector to A and B points in the given figure is
\n\"AP
\nAnswer:
\n\"AP<\/p>\n

Question 73.
\nDraw the displacement vector to AB.
\n\"AP
\nAnswer:
\n\"AP<\/p>\n

Question 74.
\nThe diagram of the direction of velocity at point ‘M’ of path when a body moves from P to Q.
\n\"AP
\nAnswer:
\n\"AP<\/p>\n

Question 75.
\n\"AP
\nIf we draw the s, t graph, it look like
\n\"AP
\nAnswer:
\n\"AP<\/p>\n

Question 76.
\nIf the average speed of a bus is 40 m\/s. What is the time to travel a distance of 12 km?
\nA) 5 min
\nB) 300 min
\nC) 480 min
\nD) None
\nAnswer:
\nA) 5 min<\/p>\n

Question 77.
\nSridevi uses a scooter to go her office. The initial and final readings of speedometer are 4849 and 5549 respectively. The total time taken to travel that distance is 25 h. The average speed of her daily journey is
\nA) 28 m\/hr
\nB) 28 km\/hr
\nC) 2800 m\/sec
\nD) 2.8 km\/hr
\nAnswer:
\nB) 28 km\/hr<\/p>\n

\"AP<\/p>\n

Question 78.
\nThe device that shows the average speed of the vehicle is
\nA) Speedometer
\nB) Gear box
\nC) Odometer
\nD) A or C
\nAnswer:
\nD) A or C<\/p>\n

Question 79.
\nA particle on a blade of the electrical fan moves in
\nA) uniform motion
\nB) uniform speed
\nC) circular path
\nD) above all
\nAnswer:
\nD) above all<\/p>\n

Question 80.
\nACB is an arc of a circle and ADB is the diameter of that circle.
\nThe ratio of distance and displacement from A to B is
\n\"AP
\nA) \u03c0
\nB) \\(\\frac{\\pi}{2}\\)
\nC) 2\u03c0
\nD) \\(\\frac{\\pi}{4}\\)
\nAnswer:
\nB) \\(\\frac{\\pi}{2}\\)<\/p>\n

Question 81.
\nA car was moved from A to B of distance 4800 m in 4 hrs. If its speed is 10 m\/s, the ratio of distance and dis-placement between A to B is
\nA) 1 : 2
\nB) 2 : 1
\nC) 1: 1
\nD) 1 : 5
\nAnswer:
\nB) 2 : 1<\/p>\n

Question 82.
\nMotion of a rocket: (a) ::
\nMotion of a satellite around the earth: (b)
\nA) (a) = uniform; (b) = non – uniform
\nB) (a) = non – uniform; (b) = uniform
\nC) (a) = uniform; (b) = uniform
\nD) (a) = non – uniform;
\n(b) = non – uniform
\nAnswer:
\nB) (a) = non – uniform; (b) = uniform<\/p>\n

Question 83.
\nAn apple is falling from a tree. It has
\nA) constant speed
\nB) constant velocity
\nC) constant direction
\nD) B and C
\nAnswer:
\nC) constant direction<\/p>\n

Question 84.
\nIf we are travelling in a bus, when the driver presses the acceleration, our bodies press against the seat due to
\nA) acceleration
\nB) uniform motion
\nC) deceleration
\nD) none
\nAnswer:
\nA) acceleration<\/p>\n

\"AP<\/p>\n

Question 85.
\nDeceleration observes in
\nA) moving train comes to rest
\nB) starting of the train
\nC) both A and B
\nD) motion of earth
\nAnswer:
\nA) moving train comes to rest<\/p>\n

Question 86.
\nA ball is thrown upwards with 10 m\/s velocity after 1 sec, what is its height?
\nA) 10 m
\nB) 5 m
\nC) 15 m
\nD) 0 m
\nAnswer:
\nB) 5 m<\/p>\n

Question 87.
\nThe speedometre of a bike gives
\nA) instantaneous speed
\nB) uniform speed
\nC) uniform velocity
\nD) acceleration
\nAnswer:
\nA) instantaneous speed<\/p>\n

Question 88.
\nA body is moving with initial velocity 30 m\/s. After certain time it acquires velocity of 40 m\/s, then the velocity in middle of its journey is
\nA) 25\u221a2
\nB) 50
\nC) 25
\nD) \\(\\frac{\\sqrt{50}}{2}\\)
\nAnswer:
\nA) 25\u221a2<\/p>\n

Question 89.
\nWith respect to passengers in a moving bus the state of motion of tree is ………………….
\nA) rest
\nB) motion in same direction
\nC) motion in opposite direction
\nD) none of these
\nAnswer:
\nC) motion in opposite direction<\/p>\n

Question 90.
\nWhen we apply brakes to car then travels with ………………………
\nA) acceleration
\nB) constant velocity
\nC) retardation
\nD) none of these
\nAnswer:
\nC) retardation<\/p>\n

Question 91.
\nWhat happens if we remove mudguard from two wheelers predict ?
\nA) Mud moves tangentially in all directions.
\nB) The look of the two wheeler increases.
\nC) Mud will stick to the wheels and speed decreases.
\nD) Mud will not fall on the two wheeler.
\nAnswer:
\nC) Mud will stick to the wheels and speed decreases.<\/p>\n

\"AP<\/p>\n

Question 92.
\nObserve the figure given and the wrong question regarding relative position :
\n\"AP
\nA) On which side of the road is the tree located ?
\nB) On which side of the tree is the house located ?
\nC) Where is the house located with respect to road ?
\nD) How many persons are there in the figure ?
\nAnswer:
\nD) How many persons are there in the figure ?<\/p>\n

Question 93.
\nThe experimental arrangement correct order is:
\na. Keep the steel plate on the floor at the bottom of the tube.
\nb. Mark the readings in cm along the tube.
\nc. Take a long plastic tube of length nearly 200 cm which is be into half along the length.
\nd. Place one end of the tube on the book and the other end on the floor.
\nA) c, d, b, a
\nB) c, d, a, b
\nC) c, b, d, a
\nD) a, b, c, d
\nAnswer:
\nB) c, d, a, b<\/p>\n

Question 94.
\nThe apparatus which is missing in the above question (3) to perform the experiment is
\na. Glass marble
\nb. Digital stop clock
\nc. Thermocol ball
\nA) a and b
\nB) c only
\nC) b only
\nD) a, b and c
\nAnswer:
\nA) a and b<\/p>\n

Observe the table given below answer the questions 5 and 6:
\n\"AP<\/p>\n

Question 95.
\nWhat do you generalise from the table given above ?
\nA) Non-uniform velocity
\nB) Rest
\nC) Accelerated motion
\nD) Uniform velocity
\nAnswer:
\nD) Uniform velocity<\/p>\n

Question 96.
\nThe correct graph representing the above table is
\n\"AP
\nAnswer:
\n\"AP<\/p>\n

Question 97.
\nThe distance(s) – time(t) graph which represents rainy drops which are falling from certain height with uniform velocity is
\n\"AP
\nAnswer:
\n\"AP<\/p>\n

\"AP<\/p>\n

Question 98.
\nA car covers half the distance at a speed of 60 kmh-1<\/sup> and the other half at a speed of 40 km h-1<\/sup>. The average speed of the car is
\nA) 44.44 km h-1<\/sup>
\nB) 50 km h-1<\/sup>
\nC) 48 km h-1<\/sup>
\nD) 0
\nAnswer:
\nB) 50 km h-1<\/sup><\/p>\n

Question 99.
\nMithilesh wanted to find instantaneous speed of the car in which he was travelling. He should see which one of the following meters ?
\nA) Anaemometer
\nB) Odometer
\nC) Speedometer
\nD) Thermometer
\nAnswer:
\nC) Speedometer<\/p>\n

Question 100.
\nAn example for a motion where the speed and direction of motion both changes continuously is
\nA) Ball moving down the inclined plane
\nB) Throwing stone into the air, making some angle with the horizontal
\nC) Ball moving up the inclined plane
\nD) Whirling stone
\nAnswer:
\nB) Throwing stone into the air, making some angle with the horizontal<\/p>\n

Question 101.
\nVelocity : ms-1<\/sup> :: acceleration :\"AP
\nA) ms-2<\/sup>
\nB) m2<\/sup>s
\nC) m-2<\/sup>s
\nD) ms2<\/sup>
\nAnswer:
\nA) ms-2<\/sup><\/p>\n

Question 102.
\nWhen the driver pushes the accelerator of the car, then
\nA) the time interval to reach the destination decreases.
\nB) the time interval to reach the destination remains the same.
\nC) the speed and time interval both increase.
\nD) the time interval to reach the destination increases.
\nAnswer:
\nA) the time interval to reach the destination decreases.<\/p>\n

Question 103.
\nIn the below graph, the velocity in ms-1<\/sup> is
\n\"AP
\nA) 1\/2 ms-1<\/sup>
\nB) Not defined
\nC) 50 ms-1<\/sup>
\nD) 2 ms-1<\/sup>
\nAnswer:
\nD) 2 ms-1<\/sup><\/p>\n

Question 104.
\nWhich of the following is not a vector?
\nA) Speed
\nB) Acceleration
\nC) Velocity
\nD) Displacement
\nAnswer:
\nA) Speed<\/p>\n

\"AP<\/p>\n

Question 105.
\nThe velocity of the car was measured by a traffic police through his radar gun at that instant. The gun measured
\nA) Instantaneous acceleration
\nB) Instantaneous velocity
\nC) Average acceleration
\nD) Average velocity
\nAnswer:
\nB) Instantaneous velocity<\/p>\n

Question 106.
\nSiva completed half revolution of circular path of radius ‘a’ units. Displace-ment of Siva is
\nA) ‘a’ units
\nB) ‘2a’ units
\nC) \u03c0a units
\nD) 2\u03c0a units
\nAnswer:
\nB) ‘2a’ units<\/p>\n

Question 107.
\nAcceleration of a person moving with constant velocity
\nA) Infinite
\nB) Positive acceleration
\nC) Negative acceleration
\nD) Zero
\nAnswer:
\nD) Zero<\/p>\n

Question 108.
\nThanish starts at 8 am to Ananthapuram from Amaravathi and reaches at 6pm. The distance between Amaravathi and Ananthapuram is 500 km. Average velocity of Thanish is
\nA) 0 km \/ hour
\nB) 40 km \/ hour
\nC) 50 km \/ hour
\nD) 60 km \/ hour
\nAnswer:
\nC) 50 km \/ hour<\/p>\n

Question 109.
\nA particle is moving in a circular path of radius r. What would be the displacement after completely distance of exactly one circle i.e ‘r’ ?
\nA) 0
\nB) r
\nC) 2r
\nD) \\(\\frac{r}{2}\\)
\nAnswer:
\nA) 0<\/p>\n

Question 110.
\nWhich of the following is a scalar quantity ?
\nA) Velocity
\nB) Momentum
\nC) Impulse
\nD) Mass
\nAnswer:
\nD) Mass<\/p>\n

Question 111.
\nWhat does the slope of a displacement and time graph represent ?
\nA) Mass
\nB) Velocity
\nC) Acceleration
\nD) Momentum
\nAnswer:
\nB) Velocity<\/p>\n

\"AP<\/p>\n

Question 112.
\nThe ratio of speed and velocity is
\nA) Always equal to 1
\nB) Always greater than 1
\nC) Always less than 1
\nD) Depends on the direction of motion
\nAnswer:
\nB) Always greater than 1<\/p>\n

Question 113.
\nBased on the direction find the Odd one.
\nA) Velocity
\nB) Displacement
\nC) Speed
\nD) Acceleration
\nAnswer:
\nC) Speed<\/p>\n

Question 114
\n……………….. is speed in Specified direction.
\nA) Distance
\nB) Velocity
\nC) Acceleration
\nD) Displacement
\nAnswer:
\nB) Velocity<\/p>\n

Question 115.
\nMatch the following equations of uniform accelerated motion formulae:
\n\"AP
\nA) P -X, Q – Y, R – Z
\nB) P – Y, Q – X, R – Z
\nC) P – Z, Q – X, R – Y
\nD) P – Y, Q – Z, R – X
\nAnswer:
\nB) P – Y, Q – X, R – Z<\/p>\n

Question 116.
\nDistance – time graph is shown in the figure.
\nPredict the equivalent velocity – time graph
\namong the following is \"AP
\n\"AP
\nAnswer:
\n\"AP<\/p>\n

Question 117.
\nWhich of the following is Non-Uniform motion :
\nA) Motion of a ball on inclined plane
\nB) Uniform circular motion
\nC) A stone thrown in air
\nD) All the above
\nAnswer:
\nD) All the above<\/p>\n

\"AP<\/p>\n

Question 118.
\nIf the equation of motion of an object is v2<\/sup> = 2as, the initial velocity is ……….
\nA) Zero
\nB) Infinity
\nC) 10 m\/s
\nD) We can’t say
\nAnswer:
\nA) Zero<\/p>\n

Question 119.
\nWhich of the following graph indicate uniform velocity ?
\n\"AP
\nAnswer:
\n\"AP<\/p>\n

Question 120.
\nFor a vector A B which of the following is correct ?
\nA) length indicates magnitude
\nB) arrow indicates direction
\nC) both A and B
\nD) is a scalar
\nAnswer:
\nC) both A and B<\/p>\n

Question 121.
\nAssertion (A) : Speedometer of a vehicle reads instantaneous velocity
\nReason (R) : The speed at any instant is called instantaneous velocity
\nA) Both A and R are correct, R is correct explanation of A
\nB) Both A and R are correct, R is not correct explanation of A
\nC) A is correct, R is incorrect
\nD) A is incorrect, R is correct
\nAnswer:
\nA) Both A and R are correct, R is correct explanation of A<\/p>\n","protected":false},"excerpt":{"rendered":"

Practice the AP 9th Class Physical Science Bits with Answers Chapter 1 Motion on a regular basis so that you can attempt exams with utmost confidence. AP State Syllabus 9th Class Physical Science Bits 1st Lesson Motion with Answers Question 1. A body released from height ‘h’ takes time’t’ to reach the ground. After time …<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[12],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/16662"}],"collection":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/comments?post=16662"}],"version-history":[{"count":0,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/16662\/revisions"}],"wp:attachment":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/media?parent=16662"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/categories?post=16662"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/tags?post=16662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}