| Date | November 2021 | Marks available | 1 | Reference code | 21N.1.SL.tz0.18 |
| Level | Standard Level | Paper | Paper 1 | Time zone | time zone 0 |
| Command term | Question number | 18 | Adapted from | N/A |
Question
The diagram shows a gymnast. Which represents the correct location for the centre of mass?
Markscheme
C
Examiners report
This question had a good level of difficulty but did not distinguish well.
Syllabus sections
- 20N.2.HL:.tz0.10e: The gymnast is performing a routine on the beam. Explain the influence of the position of the...
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18N.1.SL.tz0.20:
What happens to the centre of mass when the basketball player prepares to shoot, moving from position A to position B?
[Source: adapted from sdart/iStock]
A. Does not move
B. Moves upwards
C. Moves downwards
D. Moves forwards
- 18N.1.HL:.tz0.15: What happens to the centre of mass when the basketball player prepares to shoot, moving from...
- 17M.1.SL.tz0.18: Why is the knee bent during the recovery phase of running? A. To move the centre of gravity...
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18N.2.HL:.tz0.4c:
Diagram A, shows a gymnast balanced on a beam. In Diagram B, she is about to fall. Explain how a fall can be avoided by moving the body and therefore the centre of mass.
A
B[Source: © Ranko Bojanovic/123RF.COM]
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20N.1.SL.tz0.19:
The diagram shows a high jumper performing a Fosbury Flop. During which phase is the centre of mass outside the athlete?
[Source: © International Baccalaureate Organization 2020.]
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21M.1.HL:.tz0.15:
The diagram shows a pole vaulter clearing the bar. Which number represents the correct position of the centre of mass?
[Source: HAY JAMES G., THE BIOMECHANICS OF SPORTS TECHNIQUES,
4th Ed., ©1993 Reprinted by permission of Pearson Education, Inc.]A. 1
B. 2
C. 3
D. 4
