Types of machines in the body: torques Flashcards
1
Q
what is a centric force
A
External force directed through an objects centre of gravity.
2
Q
What is an eccentric force
A
A force that is not directed through an objects centre of gravity
3
Q
What is a force couple
A
Forces that are equal in size, opposite in direction and do not act in the same line
4
Q
What is a torque
A
It is the rotatory force when the line of a force does not pass through the axis of rotation
5
Q
What is a moment arm
A
The perpendicular distance between the line of force action, and a parallel line passing through the objects axis of rotation
6
Q
What is the equation for torque
A
torque equals force times moment arm.
7
Q
Difference between counter clockwise and clockwise torque
A
Counter clockwise will produce a positive value, clockwise will produce a negative value.
