front 1 Force | back 1 Push or pull on an object |
front 2 Internal forces | back 2
|
front 3 Internal forces: tensile force | back 3 When pulling forced act on the ends of an internal structure |
front 4 Internal force: compressive forces | back 4 When pushing forces act oj the ends of an internal structure |
front 5 External forces | back 5 Act on an object as a result of its interaction with the environment surrounding it (when two objects touch) |
front 6 Weight | back 6 W = m*g w (newtons)= m(in kilograms)*g(9.81m/s^2) |
front 7 Translation: | back 7 linear motions in which all parts of a rigid body move parallel to & in the same direction as every other part of the body |
front 8 Rotation: | back 8
|
front 9 Kinematics can be_____ | back 9 active or passive |
front 10 Degrees of freedom: | back 10 the number of independent directions of movements allowed at a joint |
front 11 max degrees of angular freedom | back 11 3 degrees for 2 cardinal planes |
front 12 Arthrokinematics: the trio | back 12
|
front 13 Roll-slide | back 13
|
front 14 spin | back 14
|
front 15 THE RULE: Convex-on-concave = | back 15 opposite |
front 16 THE RULE: Concave-on-convex | back 16 same |
front 17 Joint articulation fits “the best” where? | back 17
|
front 18 Kinetics | back 18 The study of mechanics that describes the effect of forces on the |
front 19 Rectilinear: | back 19
|
front 20 Curvilinear: | back 20
|
front 21 Angular motion | back 21
|
front 22 General motion | back 22
|
front 23 Displacement | back 23
|
front 24 Speed | back 24
|
front 25 Velocity | back 25
|
front 26 Baseball fastpitch example - baseball released @16.8m - velocity @47.162m/s | back 26
|
front 27 hang time when initial vertical velocity (20 m/s) and initial horizontal velocity (15 m/s) is known | back 27 ![]() |
front 28 L = mv | back 28
|
front 29 elastic collisions | back 29 momentum is conserved (transferred) and no energy is lost |
front 30 inelastic collisions | back 30 momentum is conserved but energy is lost |
front 31 Impulse | back 31 the product of force and the time the force acts |
front 32 Torque equations | back 32
|
front 33 Stability | back 33
|
front 34 Locating Center of gravity | back 34 ![]() sum of force |
front 35 centric forces | back 35 act through the center of gravity of an object and cause linear translation |
front 36 Eccentric forces | back 36
|
front 37 Force couples | back 37
|
front 38 1st class levers | back 38
|
front 39 2nd class levels | back 39
|
front 40 3rd class: | back 40
|
front 41 Potential Energy (2 types) | back 41
|
front 42 Power | back 42
|
front 43 Energy | back 43 the capacity to do work |
front 44 Tension | back 44 the stress that acts perpendicular (or normal) to the analysis plane |
front 45 Shear | back 45 A transverse stress that acts parallel to the plane of analysis |
front 46 Bending | back 46
|
front 47 Wolff's Law | back 47 Bone remodels according to the stresses place upon it |
front 48 Torsion | back 48 Occur when torques act about the long axis of an object |
front 49 Poisson’s Ratio | back 49
|
front 50 Elasticity | back 50 The ability to stretch under tensile load but then return to it’s original shape |
front 51 Elastic modulus | back 51 The ratio of stress-to-strain is called elastic modulus of a material |
front 52 Resilient: | back 52 the ability to absorb stress/shock/assualt and return to a previous state |