Class 9 Exam  >  Science Class 9  >  Flashcards: Gravitation
Flashcards: Gravitation
20 Flashcards
87 videos|369 docs|68 tests

FAQs on Flashcards: Gravitation Video Lecture - Science Class 9

1. How does the force of gravity affect objects on Earth?
Ans. The force of gravity is what keeps objects on Earth grounded and causes them to fall when dropped. It is responsible for the weight of objects and is what keeps planets in orbit around the sun.
2. What is the formula for calculating the force of gravity between two objects?
Ans. The formula for calculating the force of gravity between two objects is F = G * (m1 * m2) / r^2, where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between the centers of the two objects.
3. How does the force of gravity change with distance?
Ans. The force of gravity between two objects decreases as the distance between them increases. This relationship is described by the inverse square law, which states that the force of gravity is inversely proportional to the square of the distance between the objects.
4. What is the difference between mass and weight in the context of gravity?
Ans. Mass is a measure of the amount of matter in an object, while weight is a measure of the force of gravity acting on an object. The mass of an object remains constant regardless of its location, while weight can vary depending on the strength of the gravitational field.
5. How does the force of gravity vary on different planets?
Ans. The force of gravity on a planet is determined by its mass and radius. Planets with larger masses and smaller radii will have stronger gravitational forces, while planets with smaller masses and larger radii will have weaker gravitational forces. This results in differences in weight and the ability to hold objects on different planets.
87 videos|369 docs|68 tests

Up next

Explore Courses for Class 9 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

MCQs

,

Objective type Questions

,

Previous Year Questions with Solutions

,

Exam

,

Semester Notes

,

Flashcards: Gravitation Video Lecture | Science Class 9

,

pdf

,

Free

,

practice quizzes

,

Flashcards: Gravitation Video Lecture | Science Class 9

,

video lectures

,

shortcuts and tricks

,

Sample Paper

,

mock tests for examination

,

Flashcards: Gravitation Video Lecture | Science Class 9

,

study material

,

Important questions

,

Summary

,

Extra Questions

,

past year papers

,

Viva Questions

,

ppt

;