Dynamics Flashcards
What is parallel force?
Forces run parallel, e.g. propelling wheelchair
What is tangential force?
Force moves in direction of tangent to shape/path of object
What is torque?
Rotating/twisting
Which force has convergent and divergent types?
Concurrent
Which force is associated with shear?
Tangential
What is biomechanics?
Application of mechanics to the structure and function of biological systems
What is Newton’s second law?
Acceleration is inversely proportional to mass
If net force is greater than 0, item accelerates proportional to magnitude of net force, in same direction
What is a moment?
Turning/bending caused by force on lever arm, with one arm fixed
What does a vector have?
Magnitude
Direction
Position
What is a first class lever?
Effort - fulcrum - load
What lever is effort - fulcrum - load?
First class
What is a second class lever?
Fulcrum - load - effort
What lever is fulcrum - load - effort?
Second class
What is a third class lever?
Fulcrum - effort - load
What lever is fulcrum - effort - load?
Third class
What is task analysis?
Occupation-based but not occupation-focused
Not about personal factors
About body functions, anatomy, biology, kinematics
Hypothesis from physical perspective
What is activity analysis?
Not occupation-based or occupation-focused
About how activity is typically done
How to change body functions
What is performance analysis?
Occupation-based and occupation-focused
What analysis is occupation-based but not occupation-focused?
Task analysis
What analysis is not occupation-based or occupation-focused
Activity analysis
