Title : Motion in a straight line -03 1st PUC PHYSICS
1. A branch of physics dealing with motion without considering its causes is known as
(a) statics
(b) dynamics
(c) kinematics
(d) hydrodynamics.
File Language : Kannada/English
State : Karnataka
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2. Which of the following statements is incorrect?
(a) Path length is a scalar quantity whereas
displacement is a vector quantity.
(b) The magnitude of displacement is always equal to the path length traversed by an object over a given time interval.
(c) The displacement depends only on the end
points whereas path length depends on the
actual path followed.
(d) The path length is always positive whereas displacement can be positive, negative and zero.
File Format : PDF
3. The numerical ratio of distance to displacement is
(a) always equal to one
(b) always less than one
(c) always greater than one
(d) equal to or more than one.
Number of Pages : link
4. Which of the following statements is incorrect?
(a) Displacement is independent of the choice of origin of the axis.
(b) Displacement may or may not be equal to the distance travelled.
(c) When a particle returns to its starting point, its displacement is not zero.
(d) Displacement does not tell the nature of the actual motion of a particle between the points.
Editable Text : No
5. If a man goes 10 m toward north and 20 m toward east, then his displacement is
(a) 22.5 m
(b) 25 m
(c) 25.5 m
(d) 30 m
Image Available : Yes
6. A drunkard is walking along a straight road. He takes 5 steps forward and 3 steps backward and so on. Each step is 1 m long and takes 1 s. There is a pit on the road 11 m away from the starting point The drunkard will fall into the pit after
(a) 21 s
(b) 29 s
(c) 31 s
(d) 37 s
File size Reduced : No
7. The three initial and final positions of a man on the x- axis are given as
(i) (-3 m, 7 m)
(ii) (7 m, -3 m)
(iii) (-7 m, 3 m)
Which pair gives the negative displacement?
(a) (i)
(b) (ii)
(c) (iii)
(d) (i) and (iii)
Cost : Free of cost
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Answers: 1- C, 2- b, 3- d, 4-c, 5-a, 6-b, 7-b.
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