Gravitation is the force of attraction that exists between any two bodies having mass. This force acts along the line joining the centres of the two bodies.
Gravitation is a universal force because it acts between all objects in the universe.
The law of gravitation was proposed by Sir Isaac Newton. He concluded that every particle in the universe attracts every other particle with a force.
Q1. Gravitation is the force of attraction between: A) Only planets B) Only stars C) Any two masses D) Only Earth and Moon Answer: C Q2. Gravitational force is always: A) Repulsive B) Attractive C) Zero D) Variable in direction Answer: B Q3. Who proposed the law of gravitation? A) Einstein B) Galileo C) Newton D) Kepler Answer: C Q4. Gravitation is called a universal force because: A) It acts only on Earth B) It acts only in space C) It acts between all masses D) It acts only on large objects Answer: C Q5. Which of the following is due to gravitation? A) Electric current B) Magnetic field C) Falling of objects D) Sound propagation Answer: C
Force of attraction between any two bodies having mass.
Sir Isaac Newton
Direct MCQs are asked on definition, nature and examples of gravitation.