# Motion : NCERT Exemplar ### CLICK HERE to watch the second part

Multiple Choice Questions

Q.1 A particle is moving in a circular path of radius r. The displacement after half a circle would be:

(a) Zero

(b) π r

(c) 2 r

(d) 2π r

Sol. (c)

Q.2 A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is,

(a) u/g

(b) u2/2g

(c) u2/g

(d) u/2g

Sol. (b)

Q.3 The numerical ratio of displacement to distance for a moving object is

(a) Always less than 1

(b) Always equal to 1

(c) Always more than 1

(d) Equal or less than 1

Sol. (d)

Q.4 If the displacement of an object is proportional to square of time, then the object moves with

(a) Uniform velocity

(b) Uniform acceleration

(c) Increasing acceleration

(d) Decreasing acceleration

Sol. (b)

Q.5 From the given v – t graph figure, it can be inferred that the object is (a) In uniform motion

(b) At rest

(c) In non-uniform motion

(d) Moving with uniform acceleration

Sol. (a)

Q.6 Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of 10 m s–1. It implies that the boy is

(a) At rest

(b) Moving with no acceleration

(c) In accelerated motion

(d) Moving with uniform velocity

Sol. (c)

Q.7 Area under a v – t graph represents a physical quantity which has the unit

(a) m2

(b) m

(c) m3

(d) m s–1

Sol. (b)

Q.8 Four cars A, B, C and D are moving on a levelled road. Their distance versus time graphs are shown in Figure. Choose the correct statement

(a) Car A is faster than car D.

(b) Car B is the slowest.

(c) Car D is faster than car C.

(d) Car C is the slowest.

Sol. (b)

Q.9 Which of the following figures represents uniform motion of a moving object correctly? Sol. (c)

Q.10 Slope of a velocity – time graph gives

(a) the distance

(b) the displacement

(c) the acceleration

(d) the speed

Sol. (a)

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