| Date | November 2011 | Marks available | 1 | Reference code | 11N.1.HL.TZ0.7 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 7 | Adapted from | N/A |
Question
The escape speed of a rocket from the surface of Earth depends on the universal gravitational constant G. Other factors that may affect the escape speed are the
I. mass of Earth
II. radius of Earth
III. mass of the rocket.
Which of the above factors is/are correct?
A. I and II only
B. I and III only
C. II only
D. III only
Markscheme
A
Examiners report
The mass of the rocket does not affect the escape speed, although it will, of course, affect the energy needed to escape from the Earth‟s gravitational field.
Syllabus sections
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