Basic Biomechanics With Rationale Qs & As –
solution/ A+
neutral equilibrium - CORRECT ANSWERS-an object's COG is neither raised not
lowered when it is disturbed (ex. a ball rolling or pushing a wheelchair)
static equilibrium - CORRECT ANSWERS-object not in motion; all external forces acting
on a mass is zero (COG is close to BOS)
wider BOS=? - CORRECT ANSWERS-more stability
lower COG=? - CORRECT ANSWERS-more stability
example of first class lever in the body - CORRECT ANSWERS-atlas & axis tilting head
what are first class levers designed for? - CORRECT ANSWERS-balance
point where all planes of the body intersect - CORRECT ANSWERS-center of gravity
(COG)
approaches to intervention - CORRECT ANSWERS-1. restoration/remediation
2. compensate/adapt
3. prevention
adapt - CORRECT ANSWERS-change an activity due to a sustained impairment;
change activity so it can be done; modification
grade - CORRECT ANSWERS-incremental changes to an activity to restore or
remediate function; continue to change over time to address progress
anterior - CORRECT ANSWERS-front
posterior - CORRECT ANSWERS-back
superior - CORRECT ANSWERS-above
inferior - CORRECT ANSWERS-below
flexion - CORRECT ANSWERS-
flexion - CORRECT ANSWERS-
extension - CORRECT ANSWERS-
, extension - CORRECT ANSWERS-
dorsiflexion - CORRECT ANSWERS-
plantar flexion - CORRECT ANSWERS-
torque - CORRECT ANSWERS-a force that causes rotation
compression - CORRECT ANSWERS-A force that pushes on or squeezes a material.
tensile force - CORRECT ANSWERS-force applied in opposite directions to stretch an
object
shear force - CORRECT ANSWERS-twisting/rubbing forces in opposite directions
linear force - CORRECT ANSWERS-two or more forces acting along the same line
compression - CORRECT ANSWERS-
tensile force - CORRECT ANSWERS-
shear force - CORRECT ANSWERS-
linear force - CORRECT ANSWERS-
what happens if two people are using the same magnitude of force when pushing
against the same line? - CORRECT ANSWERS-no movement
parallel force - CORRECT ANSWERS-occur in same plane in same or opposite
directions
parallel force - CORRECT ANSWERS-
in a parallel force, where must the opposite force be located? - CORRECT ANSWERS-
between the two parallel forces
in a parallel force, what happens when all forces are equal? - CORRECT ANSWERS-no
movement (stability)
concurrent forces - CORRECT ANSWERS-Two or more forces acting on a common
point but pulling or pushing in different directions.
concurrent forces - CORRECT ANSWERS-
resultant force - CORRECT ANSWERS-overall effect of the two concurrent forces
solution/ A+
neutral equilibrium - CORRECT ANSWERS-an object's COG is neither raised not
lowered when it is disturbed (ex. a ball rolling or pushing a wheelchair)
static equilibrium - CORRECT ANSWERS-object not in motion; all external forces acting
on a mass is zero (COG is close to BOS)
wider BOS=? - CORRECT ANSWERS-more stability
lower COG=? - CORRECT ANSWERS-more stability
example of first class lever in the body - CORRECT ANSWERS-atlas & axis tilting head
what are first class levers designed for? - CORRECT ANSWERS-balance
point where all planes of the body intersect - CORRECT ANSWERS-center of gravity
(COG)
approaches to intervention - CORRECT ANSWERS-1. restoration/remediation
2. compensate/adapt
3. prevention
adapt - CORRECT ANSWERS-change an activity due to a sustained impairment;
change activity so it can be done; modification
grade - CORRECT ANSWERS-incremental changes to an activity to restore or
remediate function; continue to change over time to address progress
anterior - CORRECT ANSWERS-front
posterior - CORRECT ANSWERS-back
superior - CORRECT ANSWERS-above
inferior - CORRECT ANSWERS-below
flexion - CORRECT ANSWERS-
flexion - CORRECT ANSWERS-
extension - CORRECT ANSWERS-
, extension - CORRECT ANSWERS-
dorsiflexion - CORRECT ANSWERS-
plantar flexion - CORRECT ANSWERS-
torque - CORRECT ANSWERS-a force that causes rotation
compression - CORRECT ANSWERS-A force that pushes on or squeezes a material.
tensile force - CORRECT ANSWERS-force applied in opposite directions to stretch an
object
shear force - CORRECT ANSWERS-twisting/rubbing forces in opposite directions
linear force - CORRECT ANSWERS-two or more forces acting along the same line
compression - CORRECT ANSWERS-
tensile force - CORRECT ANSWERS-
shear force - CORRECT ANSWERS-
linear force - CORRECT ANSWERS-
what happens if two people are using the same magnitude of force when pushing
against the same line? - CORRECT ANSWERS-no movement
parallel force - CORRECT ANSWERS-occur in same plane in same or opposite
directions
parallel force - CORRECT ANSWERS-
in a parallel force, where must the opposite force be located? - CORRECT ANSWERS-
between the two parallel forces
in a parallel force, what happens when all forces are equal? - CORRECT ANSWERS-no
movement (stability)
concurrent forces - CORRECT ANSWERS-Two or more forces acting on a common
point but pulling or pushing in different directions.
concurrent forces - CORRECT ANSWERS-
resultant force - CORRECT ANSWERS-overall effect of the two concurrent forces
