B.1.4 Levers in movement and sport
Flashcards for B.1.4 Levers in movement and sport - IB
These interactive flashcards help IB Sports, exercise and health science (SEHS - Old) students Standard Level (SL) and Higher Level (HL) quickly review and memorize the essential definitions, formulas, and terms needed for success in IB Exams. Each card focuses on B.1.4 Levers in movement and sport and is aligned with the IB Sports, exercise and health science (SEHS - Old) syllabus, ensuring focused revision on core principles, advanced applications, and practical problem-solving. Students can test themselves anytime, anywhere, perfect for reinforcing tricky concepts, learning IB terminology, and committing formulas to memory. By using RevisionDojo's flashcards consistently, learners turn repetition into mastery and enter the exam with confidence.
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What are the three classes of levers?
First Class, Second Class, and Third Class levers.
All flashcards
What are the three classes of levers?
First Class, Second Class, and Third Class levers.
What is a First Class Lever?
A lever where the fulcrum is between the effort and load, e.g., nodding your head.
What is a Second Class Lever?
A lever where the load is between the effort and fulcrum, e.g., standing on tiptoes.
What is a Third Class Lever?
A lever where the effort is between the fulcrum and load, e.g., a bicep curl.
What does the acronym FLE stand for?
Fulcrum-Load-Effort for first class levers.
What does the acronym FEL stand for?
Fulcrum-Effort-Load for second class levers.
What is the Triceps-Elbow Joint System?
A third class lever system where the elbow joint is the fulcrum, triceps are the effort, and forearm/hand is the load.
What is the Calf-Ankle Joint System?
A second class lever system where the ball of the foot is the fulcrum, calf muscles are the effort, and body weight is the load.
What is the Biceps-Elbow Joint System?
A third class lever system where the elbow joint is the fulcrum, biceps are the effort, and forearm/hand is the load.
Why are most levers in the human body third class levers?
They sacrifice mechanical advantage for speed and range of movement.
What should be identified when labeling anatomical lever systems?
Fulcrum, effort, load, direction of movement, bones involved, and muscles producing the force.
What is a common mistake when labeling lever systems?
Forgetting to include the direction of movement.
How does understanding lever systems help in sports performance?
It helps optimize technique, improve power output, reduce injury risk, and design training programs.
What role does the shoulder joint play in a tennis serve?
It acts as the fulcrum in a third-class lever system.
What is the effect of the lever system arrangement on sports movements?
It affects speed of movement, force production, range of motion, and mechanical advantage.
What is the movement produced by the Triceps-Elbow Joint System?
Extension of the arm.
What is the movement produced by the Calf-Ankle Joint System?
Plantar flexion.
What is the movement produced by the Biceps-Elbow Joint System?
Flexion of the arm.