Weightlessness experienced while orbiting the earth in space ship is the result of:
Correct answer: C. Zero gravity
- A. Inertia
- B. Acceleration
- C. Zero gravity
- D. Centre of gravity
Explanation
Weightlessness is often colloquially referred to as "zero gravity,". The correct term is microgravity. In orbit, there is still a gravitational force acting on the spaceship and its contents; it's just that everything is in a state of continuous free fall, creating the sensation of weightlessness.
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About Gravitation
Newton’s law of universal gravitation relates the force between masses to their masses and separation, while gravitational field strength explains weight and orbital motion. The topic covers satellite velocity and period, escape ideas, weightlessness in free fall, and artificial gravity, which differs from ordinary gravitational attraction.
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