Which is the correct statement below?
General Knowledge & Current Affairs ·Previously asked in JKSSB Constable (Executive / Armed / IRP / SDRF) 2017
View the full solved paper: J&K Police Constable 2017
Question
Which is the correct statement below?
- A. The force with which the earth attracts all objects towards itself is called gravitational force. (Correct answer)
- B. The force with which the earth does not attract all objects towards itself is called gravitational force.
- C. The force with which the earth distracts all objects from itself is called gravitational force.
- D. None of the above
Correct Answer
Option A — The force with which the earth attracts all objects towards itself is called gravitational force.
Detailed Solution & Explanation
The correct answer is The force with which the earth attracts all objects towards itself is called gravitational force.
Key Points
- Gravitational force is the attraction the earth exerts on every object, pulling it towards the centre of the earth.
- Options B and C invert the definition — describing the earth as *not* attracting, or as repelling objects — and are therefore wrong.
Additional Information
- Newton's law of universal gravitation: F = G·m₁m₂/r², with G = 6.674 × 10⁻¹¹ N·m²/kg².
- The acceleration due to gravity, g ≈ 9.8 m/s², is slightly greater at the poles than at the equator because the earth is not a perfect sphere.
- Gravitation is a non-contact force, acting across a distance, and is always attractive — never repulsive, unlike magnetic and electrostatic forces.
Topics covered: Physics Gravitation