The Frame of Reference NEET Questions

Physics - Kinematics

The Frame of Reference MCQ Questions


13.
In a non-inertial frame, a fictitious force is required to:
A.
Satisfy Newton’s laws
B.
Measure velocity
C.
Define acceleration
D.
Determine mass
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ANSWER :
A. Satisfy Newton’s laws
14.
The pseudo force acts in the:
A.
Direction of acceleration of the frame
B.
Perpendicular to acceleration
C.
Opposite direction to acceleration of the frame
D.
Parallel to velocity
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ANSWER :
C. Opposite direction to acceleration of the frame
15.
In a non-inertial frame of reference, Newton's laws of motion:

NEET - 2019

A.
Are always valid.
B.
Require the introduction of fictitious forces to be valid.
C.
Do not apply at all.
D.
Are valid without any modifications.
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ANSWER :
B. Require the introduction of fictitious forces to be valid.
16.
The apparent weight of a person in a lift moving downward with acceleration 'a' is:
A.
mg
B.
m(g + a)
C.
m(g - a)
D.
Zero
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ANSWER :
C. m(g - a)
17.
Which of the following is a valid frame of reference?
A.
Earth’s surface
B.
A moving train
C.
A rotating disk
D.
All of these
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ANSWER :
D. All of these
18.
A frame of reference fixed to a freely falling body is:
A.
Inertial
B.
Non-inertial
C.
Absolute
D.
Stationary
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ANSWER :
B. Non-inertial