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QLDPhysical EducationQuick questions
Unit 3: Tactical Awareness, Ethics, Integrity and Physical Activity
Quick questions on Applied biomechanics in a chosen physical activity for QCE Physical Education Unit 3
8short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is the applied biomechanics toolkit?Show answer
For Unit 3 you draw on the principles you learned in Unit 1 (force, momentum, levers, Newton's laws) and add the applied principles that explain coordinated movement:
What is force summation?Show answer
Force summation is the principle that a coordinated sequence of body segments produces a larger force or speed at the end of the chain than any single segment could alone. Two rules govern correct summation:
What is projectile motion applied?Show answer
Projectile motion was covered in Unit 1. The Unit 3 application is choosing the release factors for a specific projectile in a specific game situation.
What is fluid mechanics?Show answer
In water or air, fluid forces matter.
What is the kinetic chain?Show answer
The kinetic chain is the model that unifies many of these principles. It treats the body as linked segments that transfer force through the joints from the ground up. Most powerful sporting actions are kinetic chain actions: throwing, kicking, striking, and even a sprint stride.
What is q1?Show answer
For a chosen striking or throwing action, explain force summation and identify two coaching cues that would help a learner sequence the body segments correctly. [4 marks]
What is q2?Show answer
A long jumper takes off at around 20 degrees. Using projectile motion principles, justify why the takeoff angle is much lower than the 45 degrees theoretical optimum. [4 marks]
What is q3?Show answer
Explain angular momentum and how a diver uses the principle of conservation of angular momentum to control rotation in the air. [4 marks]