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Date May 2022 Marks available 1 Reference code 22M.1.SL.tz0.19
Level Standard Level Paper Paper 1 Time zone time zone 0
Command term Question number 19 Adapted from N/A

Question

Levers are working throughout the body when a basketball player performs a jump shot. Where is the effort applied in the lower right leg?

Markscheme

B

Examiners report

This question was the most challenging on the paper. Most candidates selected A closely followed by C. The least popular answer for this question was B which was the correct response. The muscle contracting was the main distractor. It is understandable why many candidates selected A, as this is the belly of the gastrocnemius. However, the effort is applied through the tendon and therefore the correct answer is B as it is pointing to the attachment on the heel. C is referring to the load of the body and D is the fulcrum of the lever. This is the ankle joint showing a second class lever (Effort, Load, Fulcrum). Candidates find it challenging to apply levers to anatomical representations and therefore further practise of applying the three levers to varying sporting actions will build their confidence in these types of questions.

Syllabus sections

Topic 4: Movement analysis » 4.3. Fundamentals of biomechanics » 4.3.6. Label anatomical representations of levers.
Topic 4: Movement analysis » 4.3. Fundamentals of biomechanics
Topic 4: Movement analysis

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