1 ) What is true about the kinematics of a particle?
A ) The
velocity of a particle is always positive ,
B ) The
velocity of a particle is equal to the slope of the position-time graph ,
C ) If the
position of a particle is zero , then the velocity must zero ,
D ) If the
velocity of a particle is zero , then
its acceleration must be zero ,
Correct
Answer : - B ) The velocity of a particle is equal to the
slope of the position-time graph ,
2
) Can you think of a physical example of
when force is a function of position?
A ) a spring
,
B ) drag ,
Correct
Answer : - A ) a
spring ,
3
) Can you think of a physical example of
when force is a function of velocity ?
A ) a spring
,
B ) drag ,
Correct
Answer : - B ) drag ,
4
) If you fire a projectile from 150
meters above the ground . What launch angle will give you the greatest
horizontal distance x ?
A ) A launch
angle of 45 ,
B ) A launch
angle less than 45 ,
C ) A launch angle greater than 45 ,
D ) It
depends on the launch velocity ,
Correct
Answer : - B ) A launch angle less than 45 ,
5
) What would happen if , for a given
tangential velocity and acceleration , the arm radius was doubled ?
A ) The
accelerations would remain the same ,
B ) The an
would increase and the at would decrease ,
C ) The an
and at would both increase ,
D ) The an
would decrease and the at would increase ,
Correct
Answer : - D ) The an would decrease and the at would
increase ,
6
) For a particle in uniform rectilinear
motion ……………..
A ) a=0 v=0 ,
B ) a=constant
v=constant ,
C ) a=0
v=constant ,
D ) a=constant
v=0 ,
Correct
Answer : - C ) a=0 v=constant ,
7
) For a particle in uniform accelerated
motion ……………….
A ) a=constant
,
B ) v=constant
,
Correct
Answer : - A ) a=constant ,
8
) Study of the geometry of motion . Relates displacement , velocity , acceleration
, and time without reference to the cause of motion .
A ) Kinetics
,
B ) Kinematics
,
Correct
Answer : - B ) Kinematics ,
9
) Study of the relations existing
between the forces acting on a body and the motion of the body .
A ) Kinetics
,
B ) Kinematics
,
Correct
Answer : - A ) Kinetics ,
10
) The motion of projectile could be
replaced by …………………..
A ) two
independent rectilinear motions .
B ) two
dependent rectilinear motions .
C ) two
independent curvilinear motions .
D ) two
dependent curvilinear motions .
Correct Answer : - A ) two independent rectilinear motions .
