Practice Section 1: Biomechanics (4.2) - Chapter 4: Movement Analysis - IB 12 Physical and Health Education (SEHS)
Students

Academic Programs

AI-powered learning for grades 8-12, aligned with major curricula

Engineering Courses
Professional

Professional Courses

Industry-relevant training in Business, Technology, and Design

Certifications
Games

Interactive Games

Fun games to boost memory, math, typing, and English skills

Section 1: Biomechanics

Practice - Section 1: Biomechanics

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the acronym PEP stand for in the context of biomechanics?

  • Answer: Performance Enhancement and Prevention.
  • Hint: It represents the two primary goals for athletes and coaches.

💡 Hint: It represents the two primary goals for athletes and coaches.

Question 2 Easy

Define Gravitational Force as it relates to human movement.

  • Answer: It is the force that attracts mass toward the center of the Earth, pulling the body downward.
  • Hint: Think of what happens when you jump up for a basketball shot.

💡 Hint: Think of what happens when you jump up for a basketball shot.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which of Newton's Laws explains why a soccer ball remains stationary on the grass until a player kicks it?

  • Type: MCQ
  • Options: First Law (Inertia), Second Law (Acceleration), Third Law (Action/Reaction), Law of Gravity.
  • Correct Answer: First Law (Inertia).
  • Explanation: The Law of Inertia states that an object will remain at rest unless acted upon by an external force (the kick).
  • Hint: It's the law that deals with "keeping a ball still."
First Law (Inertia)
Second Law (Acceleration)
Third Law (Action/Reaction)
Law of Gravity. * **Correct Answer**: First Law (Inertia). * **Explanation**: The Law of Inertia states that an object will remain at rest unless acted upon by an external force (the kick). * **Hint**: It's the law that deals with "keeping a ball still."

💡 Hint: It's the law that deals with "keeping a ball still."

Question 2

Biomechanical interventions have been shown to reduce ACL injury risks by what percentage in high-risk groups?

  • Type: Text
  • Correct Answer: 50%
  • Explanation: According to performance statistics, specific biomechanical analysis and intervention can cut injury rates in half.
  • Hint: Check the "Injury Prevention" stat.

💡 Hint: Check the "Injury Prevention" stat.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A long jumper is struggling with their distance. Using the GFM mnemonic (Gravitational, Frictional, Muscular), identify one way each force could be adjusted or accounted for to improve their jump.

  • Solution:
  • Muscular: Improve leg strength to increase the explosive force at takeoff.
  • Frictional: Ensure high-quality spikes on shoes to maximize grip during the approach run.
  • Gravitational: Optimize the angle of takeoff to stay in the air longer before gravity pulls the jumper back to the sand.
  • Hint: Refer to the "Applications in Sports" detailed explanation.

💡 Hint: Refer to the "Applications in Sports" detailed explanation.

Challenge 2 Hard

Calculate the force generated by an 80kg elite sprinter who is accelerating at . If the ground reaction force is 4 times their body weight (using ), what is the total force exerted on the ground?

  • Solution:
  • Internal Force (): .
  • Ground Reaction Force: .
  • Hint: Force equals mass times acceleration.

💡 Hint: Force equals mass times acceleration.

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.