quize 7 Flashcards
If angular acceleration is constant, then angular velocity must be
Question 1 options:
none of these answers is correct.
increasing or decreasing.
equal to zero.
constant.
b
Which of the following can contribute to the resultant linear velocity of a projectile at release?
Question 2 options:
none of these answers is correct
tangential acceleration
radial acceleration
both tangential acceleration and radial acceleration
d
What rules have to be followed when using the formula v = rω?
Question 3 options:
units for ω have to be radian-based
there are no special rules
both units for ω have to be radian-based and units for v and r must the same base units (with time included in “v”)
units for v and r must the same base units (with time included in “v”)
c
What component of acceleration of a body in angular motion is directed toward the center of curvature and represents change in direction?
Question 5 options:
radial acceleration
none of these answers is correct
linear acceleration
tangential acceleration
a
Which of the following are scalar quantities?
Question 6 options:
neither angular distance nor angular velocity
angular distance
angular velocity
both angular distance and angular velocity
d angular distance and velocity
Which of the following is/are correct units for angular speed?
Question 7 options:
rpm
deg/s
both rpm and deg/s
rad/s
all of these answers are correct
d all
The component of angular acceleration directed toward the center of curvature defines what?
Question 8 options:
angular acceleration
tangential acceleration
radial acceleration
linear acceleration
C ) radial acceleration
A procedure for identifying the direction of an angular motion vector is called what?
Question 9 options:
clockwise rule
both right hand rule and clockwise rule
no special procedure is needed
right hand rule
d) rhr
What quantity will have the following units? rad/s
Question 10 options:
linear velocity
angular displacement
linear displacement
angular velocity
d
A ___________________ is a simple tool commonly used by clinicians to measure joint angles on human patients.
A ___________________ is a unit of angular measurement equal to approximately 57.3°.
radian not 1 radian
When are radian-based units essential?
Question 6 options:
all of these answers are correct
when measuring angular velocity
when measuring linear velocity
when converting between linear and angular velocity
d when converting between linear and angular velocity
Which of the following is/are true regarding a radian?
Question 7 options:
it is a unit of angular displacement
it is equal to 57.3 degrees
all of these answers are correct
it is the size of the angle subtended by an arc of radius lengt
Which angular direction is conventionally regarded as positive?
Question 10 options:
clockwise
flexion
counterclockwise
extension
f the knee joint goes through 100° of flexion during the down phase of a squat, what is the total angular distance during 10 complete squats?
none of these answers is correct
Correct Answer
2000°
Incorrect Response
1000°
0°
a
