The Frame of Reference NEET Questions

Physics - Kinematics

The Frame of Reference MCQ Questions


13.
When an object returns to its starting point after completing a journey, its displacement is:
A.
Equal to the total path length
B.
Double the maximum distance from start
C.
Zero
D.
Equal to the circumference if path is circular
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ANSWER :
C. Zero
14.
Which of the following correctly describes a coordinate system used as a frame of reference?
A.
Only a point (origin) is needed
B.
An origin + set of axes (coordinate system) + a clock to measure time
C.
Only a clock is needed
D.
Only the direction of motion is needed
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ANSWER :
B. An origin + set of axes (coordinate system) + a clock to measure time
15.
In NCERT, what does the statement 'motion is relative' mean?
A.
All objects are always in motion
B.
Motion of an object is described with respect to a chosen frame of reference
C.
Motion depends only on mass
D.
Motion can only be described in the rest frame
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ANSWER :
B. Motion of an object is described with respect to a chosen frame of reference
16.
The average speed of an object over a time interval is:
A.
Always equal to the magnitude of average velocity
B.
Always less than the magnitude of average velocity
C.
Greater than or equal to the magnitude of average velocity
D.
Equal to instantaneous velocity
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ANSWER :
C. Greater than or equal to the magnitude of average velocity
17.
Instantaneous speed at any instant is related to instantaneous velocity by:
A.
Speed > velocity always
B.
Speed = magnitude of instantaneous velocity
C.
Speed < velocity always
D.
Speed is unrelated to velocity
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ANSWER :
B. Speed = magnitude of instantaneous velocity
18.
A person walks 3 km north, then 4 km east. The displacement and distance are respectively:
A.
5 km and 5 km
B.
7 km and 5 km
C.
5 km and 7 km
D.
7 km and 7 km
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ANSWER :
C. 5 km and 7 km