Biomechanics - Week 2

Question 1

Angular motion

Answer 1

Angular motion is when an object moves about an axis or centre of rotation

Question 2

Force equation

Answer 2

Mass x acceleration

Question 3

Torque equation

Answer 3

Moment arm x force

Question 4

Leverage is comprised of (3)

Answer 4

1. Axis about which the lever may rotate
2. Applied force - causes of the movement (muscle force)
3. Resistive force - resists the movement (limb weight, gravity)

Question 5

Mechanical advantage MA = 1

Answer 5

No mechanical advantage (resistant arm = force arm)

Question 6

MA > 1

Answer 6

Mechanical advantage (force arm > resistant arm)

Question 7

MA < 1

Answer 7

No mechanical advantage (resistant arm > force arm)