Weightlessness is
A. Zero gravity
B. When gravity decrease
C. In vacuum
D. None of the above
Answer: Option A
Solution (By Examveda Team)
Weightlessness is the condition in which a body experiences no net force of gravity acting on it.It does not mean that gravity disappears, but rather that both the body and its surroundings are in a state of free fall under the influence of gravity, creating the sensation of zero weight.
Option B: Incorrect, because weightlessness is not due to decrease of gravity but due to free fall where gravitational pull is not felt.
Option C: Incorrect, because even in a vacuum, gravity acts on bodies (for example, planets and satellites move in vacuum under gravity).
Thus, weightlessness is correctly defined as zero gravity.
This Question Belongs to Physics GK Chapter Wise >> Gravitational Force
Answer should be D. None of the above
Weightlessness doesn't mean zero gravity