Class 10 Science I – CET/Board Practice MCQ (Gravitation) / Objectives / By Elite Tutors Note:→ The following Quiz helps students to learn and practice Objectives.→ Each Quiz is of 10 questions→ Quiz has timer→ Questions will appear randomly→ To practice all objectives students are supposed to take Quiz again and again. Click here to start Quiz 0 votes, 0 avg 0 Created by Elite Tutors CET MCQ Quiz Science I – Gravitaion SSC MAHARASHTRA BOARD CLASS X Science I – Gravitation MCQs 1 / 10 A ball of mass 2 kg is released from a height of 180 m and falls freely to the ground. Assuming that the value of g is 10 m/s2, the time taken by the ball to reach the ground is _______ 4 s 5 s 2 s 6 s 2 / 10 The orbit of a planet is a/an ___________ with the Sun at _______ ellipse, one of the foci hyperbolic, the centre parabolic, one of the foci circular, the centre 3 / 10 For an object at infinite distance from the earth, the value of acceleration due to gravity (g) is zero 9.73 m/s2 maximum 9.8 m/s2 4 / 10 In SI units, the value of G is equal to the _________ between two masses of 1 kg kept 1 m apart. acceleration due to gravity kepler’s constant repulsive force gravitational force 5 / 10 The direction of the acceleration due to gravity of any object is always both (B) and (C) (C) vertically downwards (B) away from the centre (A) vertically upwards 6 / 10 By observing falling apple, Newton came to conclusion that the apple falls vertically downward due to a ______ force. centre seeking centre repulsive centrifugal pseudo 7 / 10 Escape velocity of a satellite depends on the _____ radius of the orbit of the satellite mass of the planet mass of the satellite size of satellite 8 / 10 Medium in which true free fall is possible is ________ fluid vacuum water moist air 9 / 10 The value of acceleration due to gravity is maximum at _________ anywhere on the surface of the earth the centre of the earth the pole of the earth the equator of the earth 10 / 10 According to Kepler’s first law, the orbit of a satellite revolving around a planet is always ________ circular hyperbola elliptical straight line Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz Exit The above quiz consists of these topics: ⇒ Class 10 Science Part – 1 Chapter – 1 Gravitation