final exam 3600

Question 1

equilibrium

Answer 1

resultant force and net torque acting upon an object equal zero

Question 2

linear equilibrium

Answer 2

net of the external forces acting upon a system is equal to zero

Question 3

rotational equilibrium

Answer 3

net of the external torques acting upon a system is equal to zero

Question 4

static equilibrium

Answer 4

system is in linear and rotational equilibrium and possesses linear or rotational velocity

Question 5

dynamic equilibrium

Answer 5

system in motion, but is experiencing no change in velocity or direction

Question 6

stability

Answer 6

resistance of an object to having its equilibrium disturbed; more of a mechanical term

Question 7

balance

Answer 7

ability to control the current state of equilibrium; implies conscious effort and coordination; is a neuromuscular reference

Question 8

unstable equilibrium

Answer 8

an object that requires very little force or torque to disrupt its current state

Question 9

neutral equilibrium

Answer 9

an object that has no tendency to fall in one direction or the other

Question 10

linear stability

Answer 10

resistance of a body to having its linear equilibrium disrupted

Question 11

rotational stability

Answer 11

the resistance of a body to having its rotational or angular equilibrium disrupted

Question 12

base of support

Answer 12

the entire area bounded by a perimeter formed by the object’s points of contact with a resistive surface that provides a counterforce