Uniform and Non-Uniform Motion NEET Questions

Physics - Kinematics

Uniform and Non-Uniform Motion MCQ Questions


13.
In non-uniform motion, the instantaneous speed:
A.
Is always equal to average speed
B.
Is always greater than average speed
C.
Can be equal to, greater than, or less than average speed
D.
Is always zero
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ANSWER :
C. Can be equal to, greater than, or less than average speed
14.
For an object in non-uniform motion, which statement is correct?
A.
Displacement = distance always
B.
Average speed = |average velocity| always
C.
The object has non-zero acceleration
D.
The x-t graph is always a straight line
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ANSWER :
C. The object has non-zero acceleration
15.
The distance-time graph (x-t) for a uniformly accelerating body starting from rest is:
A.
x ∝ t (straight line)
B.
x ∝ t² (parabola)
C.
x ∝ 1/t (hyperbola)
D.
x ∝ √t
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ANSWER :
B. x ∝ t² (parabola)
16.
Galileo's law of odd numbers states that for a body falling from rest in uniform acceleration, distances in successive equal time intervals are in ratio:
A.
1:2:3:4
B.
1:4:9:16
C.
1:3:5:7
D.
2:4:6:8
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ANSWER :
C. 1:3:5:7
17.
According to Galileo's law, the distance covered in the 4th second of free fall from rest is ___ times the distance in the 1st second:
A.
4 times
B.
7 times
C.
16 times
D.
9 times
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ANSWER :
B. 7 times
18.
A car accelerates from rest uniformly. If it covers 5 m in the 1st second, how much does it cover in the 3rd second?
A.
5 m
B.
15 m
C.
20 m
D.
25 m
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ANSWER :
D. 25 m