Stability

Your body's ability to return to desired position or trajectory following a disturbance is the definition for...

• balance

• stability

• equilibrium

A person’s ability to control their equilibrium in relation to gravity only is the definition for...

• balance

• stability

• equilibrium

Equilibrium...

• A person’s ability to control their equilibrium in relation to gravity only

• a state of zero acceleration where there is no change in the speed or direction of the body

• Your body ability to return to desired position or trajectory following a disturbance

Torque is the rotary effect of a force about an axis of rotation.

• True

• False

The image is describing the moment arm. What is moment arm?

• The moment arm of a force is the vertical distance from the force’s line of action to the axis of rotation.

• The moment arm of a force is the opposite from the force’s line of action to the axis of rotation.

• The moment arm of a force is the perpendicular distance from the force’s line of action to the axis of rotation.

Where do torques occur within the human body?

• The product of muscle tension and muscle moment arm produces a torque at the muscle itself.

• The product of muscle tension and muscle moment arm produces a torque at the joint crossed by the muscle.

• The product of muscle tension and muscle moment arm produces a torque at the radius bone.

What is a lever?

• bar like body that can be made to rgo up and down

• a simple machine consisting of a relatively rigid bar like body that can be made to rotate about an axis or a fulcrum

• a bar that is perpendicular distance from the force’s line of action to the axis of rotation.

Which class lever system is this?

• First class lever

• Second class lever

• Third class lever

Is the image showing the second class lever?

• True

• False

What is static equilibrium?

• a motionless state in which there is no net force or net torque acting

• a motionless state in which there is net force or net torque acting

• a state of equilibrium