MCQ PracticeSingle Best AnswerTopic: Laws of motion
Q
What is the escape velocity?
Question ID
#8519
Subchapter
Laws of motion
Action
Choose one option below
Choose Your Answer
Click an option to check whether your answer is correct.
A
The velocity at which a rocket leaves the atmosphere ✔✖
B
The velocity at which a rocket orbits the Earth ✔✖
C
The velocity at which a rocket travels through space ✔✖
D
The velocity at which a rocket burns out ✔✖
A
Correct Answer: A
Explanation
The escape velocity is the minimum speed an object needs to achieve to escape the gravitational pull of a massive body, such as the Earth. In the case of a rocket leaving the Earth's atmosphere, it needs to reach the escape velocity in order to overcome the gravitational pull of the Earth and leave the atmosphere.