alleryThe law of areas explains why a planet moves slower when it is:
AFarther out
BNearer in
CAt the focus
DAt the centre
Answer & Solution
Correct answer: A. Farther out
1. Sweeping equal areas takes a longer arc when close in.
2. Farther out, a shorter arc covers the same area.
3. So the planet moves slower when farther from the sun.
_Source: syllabus Physics Part I, Chapter 8, Gravitation._
Keep practising Gravitation
Browse all Gravitation questions for CBSE Class 11 (Science), or explore more Physics topics.
Related questions
In an elliptical satellite orbit, the total mechanical energy is?For a satellite in an elliptical orbit, the orbital radius in the period formula is replacChanging the arbitrary constant in gravitational potential energy changes the gravitationaFor a particle outside a spherically symmetric body, the body's pull acts as if its mass wCan a hollow shell shield a body inside it from outside gravitational pulls?What is the gravitational force on a particle inside a uniform hollow spherical shell?What is the sign of the total energy of an orbiting satellite?A satellite in a circular orbit has kinetic energy 5 MJ. What is the magnitude of its pote