Q. A space ship moves from earth to moon and back. The greatest energy required for the space ship is to overcome the difficulty in
A) Entering the earth’s gravitational field
B) Take off from earths field
C) Take off from lunar surface
D) Entering the moon’s lunar surface
Explanation
(b) When the spaceship is to take off, gravitational pull of earth requires more energy to be spent to overcome it
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.