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Hassan
1.The distance covered by an object in unit time is called its
A. speed
B. velocity
C. displacement
D. speed
2.The time taken by a train to slow down from 80 kmh-1 to 20 kmh-1 with a uniform deceleration of 2 ms-2 is
A. 9 s
B. 10 s
C. 8.3 s
D. 9 s
3.The length of a path between 2 points is called
A. displacement
B. distance
C. position
D. displacement
4. If the velocity of a body increases with time, then its acceleration is
A. zero
B. positive
C. negative
D. zero
5.The types of motion are
A. 2
B. 3
C. 4
D. 2
6.The rate of change of velocity is called
A. speed
B. distance
C. force
D. speed
7. The shortest distance between 2 points which also has direction and magnitude is termed as
A. position
B. velocity
C. displacement
D. position
8. In terms of velocity, the symbol vf is used for
A. final velocity
B. initial velocity
C. negative velocity
D. final velocity
9.Motion of riders in Ferris wheel is
A. rotatory
B. translational
C. spin
D. rotatory
10.The height of tower when stone dropped from it reaches ground in 5 s is
A. 130 m
B. 125 m
C. 150 m
D. 130 m
11.Negative acceleration is called
A. friction
B. retardation
C. uniform acceleration
D. friction
12. The study of motion of an object without discussing the cause of motion is known as
A. kinematics
B. dynamics
C. trinamics
D. kinematics
13.If a body doesn't change its position with respect to its surroundings then its in state of
A. motion
B. rest
C. equilibrium
D. motion
14. The location of a place or a point with respect to some reference point(origin) is known as
A. velocity
B. rest
C. displacement
D. velocity
15.The motion of an object in a circular path is called
A. random motion
B. vibratory motion
C. circular motion
D. random motion
16.The reference point is taken as
A. origin
B. anywhere on x-axis
C. anywhere on y-axis
D. origin
17.The direction of centripetal force is always
A. towards center
B. away from center
C. tangent to the circle
D. towards center
18.The momentum of an iscolated system of two or more than two interacting bodies remains
A. variable
B. zero
C. negative
D. variable
19.The centripetal force is given by
A. (mV2) ⁄ r
B. r ⁄ mv
C. mvr
D. (mV2) ⁄ r
20.The friction is reduced by
A. making sliding surfaces smooth
B. lubricating the surface
C. using ball bearings
D. making sliding surfaces smooth
21. The maximum value of friction is known as the
A. initial friction
B. force of limiting friction
C. fixed friction
D. initial friction
22.The contact points between the two surfaces form a sort of
A. cold welds
B. hot welds
C. strips
D. cold welds
23. The motion of an object in a circular path is called
A. circular motion
B. translatory motion
C. vibratory motion
D. circular motion
24. (mass of a body × gravity) is equal to
A. weight
B. inertia
C. force
D. weight
25.The constant of friction is represented by
A. ω
B. δ
C. σ
D. ω
26.Weight is measured by a
A. beam balance
B. spring balance
C. screw gauge
D. beam balance
27. Newton is denoted by
A. n
B. N
C. R
D. n
28.The quantity of matter possessed by the body is known as
A. mass
B. weight
C. inertia
D. mass
29. If the coefficient of friction between wood and marble is 0.6,mass of wood is 6 kg, then the force of friction between the wood and the horizontal marble floor will be
A. 36 N
B. 30 N
C. 40 N
D. 36 N
30.The tires roll over easily on
A. smooth surface
B. rough surface
C. on coal tar
D. smooth surface
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