Read and download NCERT Class 9 Science Gravitation Questions in NCERT book for Class 9 Science. You can download latest NCERT eBooks chapter wise in PDF format free from Studiestoday.com. This Science textbook for Class 9 is designed by NCERT and is very useful for students. Please also refer to the NCERT solutions for Class 9 Science to understand the answers of the exercise questions given at the end of this chapter
NCERT Book for Class 9 Science Chapter 10 Gravitation
Class 9 Science students should refer to the following NCERT Book Chapter 10 Gravitation in Class 9. This NCERT Book for Class 9 Science will be very useful for exams and help you to score good marks
Chapter 10 Gravitation NCERT Book Class 9
GRAVITATION
1. Two objects of different masses falling freely near the surface of moon would
(a) have same velocities at any instant
(b) have different accelerations
(c) experience forces of same magnitude
(d) undergo a change in their inertia
2. The value of acceleration due to gravity
(a) is same on equator and poles
(b) is least on poles
(c) is least on equator
(d) increases from pole to equator
3. The gravitational force between two objects is F. If masses of both objects are halved without changing distance between them, then the gravitational force would become
(a) F/4 (b) F/2 (c) F (d) 2 F
4. A boy is whirling a stone tied with a string in an 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 centre 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
5. Law of gravitation gives the gravitational force between
(a) the earth and a point mass only
(b) the earth and Sun only
(c) any two bodies having some mass
(d) two charged bodies only
6. What is the source of centripetal force that a planet requires to revolve around the Sun? On what factors does that force depend?
7. On the earth, a stone is thrown from a height in a direction parallel to the earth’s surface while another stone is simultaneously dropped from the same height. Which stone would reach the ground first and why?
8. Suppose gravity of earth suddenly becomes zero, then in which direction will the moon begin to move if no other celestial body affects it?
9. Identical packets are dropped from two aeroplanes, one above the equator and the other above the north pole, both at height h. Assuming all conditions are identical, will those packets take same time to reach the surface of earth. Justify your answer.
10. The weight of any person on the moon is about 1/6 times that on the mass, which can be lifted by the same force applied by the person on themoon?
11. Calculate the average density of the earth in terms of g, G and R.
12. The earth is acted upon by gravitation of Sun, even though it does not fallinto the Sun. Why?
Please refer to attached file for NCERT Class 9 Science Gravitation Questions
NCERT Class 9 Science Matter In Our Surroundings |
NCERT Class 9 Science Matter In Our Surroundings Questions |
NCERT Class 9 Science Is Matter Around Us Pure |
NCERT Class 9 Science Is Matter Around Us Pure Questions |
NCERT Class 9 Science Atoms And Molecules |
NCERT Class 9 Science Atoms And Molecules Questions |
NCERT Class 9 Science Structure Of The Atom |
NCERT Class 9 Science Structure Of The Atom Questions |
NCERT Class 9 Science The Fundamental Unit Of Life |
NCERT Class 9 Science The Fundamental Unit Of Life Questions |
NCERT Class 9 Science Tissues |
NCERT Class 9 Science Tissues Questions |
NCERT Class 9 Science Diversity In Living Organisms |
NCERT Class 9 Science Diversity In Living Organisms Questions |
NCERT Class 9 Science Motion |
NCERT Class 9 Science Motion Questions |
NCERT Class 9 Science Force And Laws Of Motion |
NCERT Class 9 Science Force And Laws Of Motion Questions |
NCERT Class 9 Science Gravitation |
NCERT Class 9 Science Gravitation Questions |
NCERT Class 9 Science Work And Energy |
NCERT Class 9 Science Work And Energy Questions |
NCERT Class 9 Science Sound |
NCERT Class 9 Science Sound Questions |
NCERT Class 9 Science Why Do We Fall Ill |
NCERT Class 9 Science Why Do We Fall Ill Questions |
NCERT Class 9 Science Natural Resources |
NCERT Class 9 Science Natural Resources Questions |
NCERT Class 9 Science Improvement In Food Resources |
NCERT Class 9 Science Improvement In Food Resources Questions |
NCERT Class 9 Science Solutions and Answers |
NCERT Book Class 9 Science Chapter 10 Gravitation
The above NCERT Books for Class 9 Science Chapter 10 Gravitation have been published by NCERT for latest academic session. The textbook by NCERT for Chapter 10 Gravitation Science Class 9 is being used by various schools and almost all education boards in India. Teachers have always recommended students to refer to Chapter 10 Gravitation NCERT etextbooks as the exams for Class 9 Science are always asked as per the syllabus defined in these ebooks. These Class 9 Chapter 10 Gravitation book for Science also includes collection of question. Along with Science Class 9 NCERT Book in Pdf for Chapter 10 Gravitation we have provided all NCERT Books in English Medium for Class 9 which will be really helpful for students who have opted for english language as a medium. Class 9 students will need their books in English so we have provided them here for all subjects in Class 9.
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