Question on  Class IX  »  Science  »  Gravitation  » The Universal Law Of   Gravitation.         Q.1. When we   move from the poles to the equator. Hence, the value of ‘ g ’ decreases.  Why         Ans: The   shape of earth is an ellipse so when we move from the poles to the equator the   radius of the earth R increases. Hence, the value   of ‘   g   ’ decreases because value 'g' is inversely proportional to the radius   of earth.  g = GM/R 2         Q. 2. What is the diffrence between centrifugal force   and centripetal force?         Ans: Centripetal Force                       (i) It is the force that keeps a body in circular   path.   (ii) It acts toward the center.         Centrifugal Force         (i) It is the pseudo force that tries to make a body   fly off the circular path.    (ii) It acts   outward the center.         Q.3. Explain :Centrifugal force and Centri...
CBSE NCERT SOLUTION, STUDY MATERIAL, NOTES,CTET, SAMPLE PAPER, SCIENCE, PHYSICS, CHEMISTRY, BIOLOGY, CBSE QUESTION PAPER, SAMPLE PAPER, CBSE Syllabus; CBSE Model Papers; BOARD Exam PAPER; ONLINE STUDY HELP, STUDY MATERIALS, For CLASS 6 to 12, PDF FILE, YouTube VIDEO for lessons.