Motion MCQ Questions Class 9 Science Chapter 8
NCERT MCQ Questions for Class 9 Science Chapter 8 Motion. Motion MCQ Questions with Answers from Class 9 Science Honeysuckle.
Motion MCQ Questions Class 9 Science Chapter 8
Motion Multiple Choice Questions with Answers Class 9 Science Chapter 8 PDF is available.
1.) Which is the most simple type of motion among the following?
a) Motion in straight line
b) Motion in plane.
c) Motion in space
d) Motion of projectile.
Answer: a) motion in straight line is most simple type of motion.
2.) If an object moves 4 km in a straight line then the value of displacement is….
a) 4 km
b) 8 km
c) 12 km
d) 0 km
Answer: d) If the initial and final position of the particle is zero then the value of displacement becomes zero.
3.) Speed is depend on…
a) Path length
b) Displacement
c) Initial and final position of the object.
d) None of these.
Answer: a) As we know that speed is the ratio of path length and time.
4.) Velocity of the particle is depend on….
a) Distance
b) Displacement
c) Path of the object
d) None of these.
Answer: b) As we know that velocity is the ratio of displacement and time.
5.) If the particle completes one rotation along a circular track having radius 14 m in 44 seconds then the value of speed it’s speed is…
a) 1 m/s.
b) 2 m/s.
c) 3 m/s.
d) 4 m/s
Solution: Given, radius of circular track = 14 m,
Time = 44 seconds.
As we know that, the distance covered by particle along circular track is the circumference of that circle.
Distance = Circumference = 2 × π × r
Distance = Circumference = 2 ×( 22/7 )× 14
Distance = 2 × 22 ×2
Distance = 88 m.
As,
Speed = distance /time.
Speed = 88 / 44
Speed = 2 m/s.
Answer = b) 2 m/s.
In case you are missed :- Previous Chapter MCQ Questions
6.) The area of speed time graph is…
a) Distance
b) Acceleration
c) Velocity
d) Speed
Answer: d) speed.
7.) You can derive first equation of kinematics is from the formula of….
a) Distance
b) Speed
c) Acceleration
d) Velocity
Answer: c) Acceleration: we can derive 1st equation of kinematics from the formula of acceleration.
8.) Which of the following is the example of uniform motion.
a) Zig-zag motion of butterfly
b) Motion of aero plane before take off
c) Motion of periods of soldiers.
d) Motion of fan after switch off.
Answer: c) motion of soldiers.
9) A bus is moving with speed of 10 m/s. How much time required to stop that bus if driver decelerate it at the rate of 2 m/s².
a) 5 seconds
b) 10 seconds
c) 4 seconds
d) 8 seconds
Answer: a)
Given,
Initial speed = u = 10 m/s, deceleration = -2m/s²,
Finally bus stop so , Final speed = v = 0 m/s. Time = ?
As we know the first equation of kinematics is,
v = u + at
0 = 10 + (-2) t
2t = 10
t = 10/2
t = 5 seconds.
10.) If you throw a ball in upward direction then the value of g will be…
a) Positive
b) Negative
c) We can not say
d) It is not fixed
Answer: a) positive.
In case you are missed :- Next Chapter MCQ Questions
