Torque Flashcards
Units of torque
Nm
1 Nm to ftlb
0.7376 ftlb
What is torque referred to?
Moment or moment of force
What is the product of torque?
Force (F) and moment arm (r)
Is torque a vector?
Yes
What is the moment arm?
Perpendicular distance between line of action of force and axis of rotation
How do you determine positive or negative torques?
If it is turning positive (CCW) or negative (CW) from the force applied
Where are moment arms drawn from?
The axis of rotation
Are lever arm and moment arm interchangable?
NO
Where is the moment arm length of the vertical force the greatest during a bicep curl?
Horizontal positions
What does the graph look like for the vertical force moment arm lengths during a bicep curl?
Hill Up
Hill Down
Where is the moment arm length of the horizontal force the greatest during a bicep curl?
Beginning and end of rep
What does the graph look like for the horizontal force moment arm lengths during a bicep curl?
Valley Up
Valley Down
How does the moment arm change when the forearm length changes?
Increases linearly
How does the moment arm change when the time to complete the rep is altered?
No change
How does the moment arm change when the mass of the barbell is altered?
No change
What is the graph depicted during torque in the vertical position?
Valley-valley
(negative version of vertical force moment arm)
