It’s a crucial chapter, therefore, you’ll need to develop in-depth learning of the Class 9 Science MCQ Questions of Gravitation with Answers. Students often confuse several terms included during this chapter. These MCQ Questions will act as a self-assessment for you once you’ve got studied the whole chapter.
To help you in exams your understanding, here could be a list of MCQ questions for class 9 Science. confirm you have got skilled these chapters earlier, and only then do you begin with this examination.
Practice MCQ Questions for class 9 Chapter-Wise
1. Two objects of different masses falling freely near the surface of the moon would
(a) have same velocities at any instant
(b) have different acceleration
(c) experience forces of the same magnitude
(d) undergo a change in their inertia
2. A boy is whirling a stone tied to a string in a horizontal circular path. If the string breaks, the stone
(a) will continue to move in the circular path
(b) will move along a straight line towards the center of the circular path
(c) will move along a straight line tangential to the circular path
(d) will move along a straight line perpendicular to the circular path away from the boy
3. The atmosphere is held to the Earth by
(a) gravity
(b) wind
(c) clouds
(d) Earth’s magnetic field
4. An object weighs 10 N in air. When immersed fully in water, it weighs only 8 N. The weight of the liquid displaced by the object will be
(a) 2 N
(b) 8 N
(c) 10 N
(d) 12 N
5. The acceleration due to gravity on the Earth depends upon the
(a) mass of the body
(b) mass of the Earth
(c) shape and size of the body
(d) volume of the body
6. .......of a body is the quantity of matter contained in it.
(a) mass
(b) weight
(c) volume
(d) none of these
7. The earth and the moon are attracted to each other by gravitational force. The earth attracts the moon with a force that is:
(a) More than that exerted by the moon
(b) Same as that exerted by the moon
(c) Less than that exerted by the moon
(d) Not related to that exerted by the moon
8. An apple and a stone dropped from a certain height accelerates
(a) equally
(b) differently
(c) depending on density
(d) depends on the position of the Sun
9. The pressure exerted by man on earth is minimum when he
(a) sits
(b) stands on one foot
(c) stands on both feet
(d) lies on ground
10. When a body floats in a liquid, its apparent weight is always
(a) less than the weight of the body
(b) more than the weight of the body
(c) equal to the weight of the body
(d) zero
11. School bags have a broader base to reduce
(a) pressure
(b) weight
(c) air resistance
(d) normal reaction
12. The weight of an object is least in some region of the earth. What will be the color of bears found in that region?
(a) black
(b) white
(c) blue
(d) brown
13. SI Unit of pressure is
(a) Pascal
(b) Newton
(c) m/s
(d) Dyne
14. Density of a substance is defined as mass per unit ……………..
(a) weight
(b) volume
(c) time
(d) pressure
15. The relative density of a substance is the ratio of its density to that of
(a) air
(b) water
(c) vacuum
(d) none of these
16. Weight of an object on the surface of the moon is
(a) 1/6 that on the surface of the earth
(b) 1/5 that on the surface of the earth
(c) 1/3 that on the surface of the earth
(d) 1/2 that on the surface of the earth
17. The atmosphere is held to the Earth by
(a) gravity
(b) wind
(c) clouds
(d) Earth’s magnetic field
18. For a given applied thrust, the pressure exerted on a surface by a sharp pin is
(a) more than the pressure exerted by a blunt pin
(b) less than the pressure exerted by a blunt pin
(c) equal to the pressure exerted by a blunt pin
(d) either less or equal to the pressure exerted by a blunt pin
19. Earth moves in a circular motion around the Sun because of ........... force,
(a) frictional
(b) static
(c) applied
(d) gravitational
20. What is buoyant force-
(a) An upward force on an object immersed in a liquid
(b) Partially downward force
(c) A downward force on an object immersed in a liquid
(d) None of the above
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