Quiz 7
Angular Motion Mastery Quiz
Test your knowledge of angular motion concepts with our challenging quiz! This quiz is designed to assess your understanding of fundamental principles such as moment of inertia, torque, and angular momentum.
Whether you're a student of sports science, physics, or just curious about biomechanics, this quiz is perfect for you!
- 10 challenging multiple-choice questions
- Engaging and educational
- Perfect for students and enthusiasts alike
A gymnast dismounts the uneven parallel bars with some angular momentum about her transverse axis. Just after release, she is in a piked position. She then extends into a layout position before she lands. What happens as a result of this action?
Her moment of inertia decreases and she rotates faster.
Her angular momentum decreases.
Her angular momentum increases.
Her moment of inertia increases and she rotates slower.
None of these
When knee flexion is increased (heel brought to buttocks) during running, the moment of inertia of the lower extremity about the hip:
Moment of inertia cannot be measured about the hip
Depends on the anthropometric characteristics of the leg
Remains the same
Is increased
Is decreased
The center directed acceleration of a spinning object (e.g., a ball on a string) is called
Tangential acceleration.
Centrifugal acceleration
Centripetal acceleration
Magnus effect
Angular aceleration
During angular motion, what is the relationship between the length of the moment arm and the torque created (when the force used is constant)?
The moment arm is equal to force times the torque.
Torque and force will remain constant.
The shorter the moment arm, the greater the torque.
The longer the moment arm, the greater the torque.
Moment arm length and torque production are not related.
Angular impulse is the product of:
Force and the time that force is applied.
Force and torque.
Torque and the time that torque is applied.
Mass and angular velocity.
Angular inertia and angular momentum.
As an object's mass increases, what happens to its moment of inertia?
It decreases.
This depends on how the added mass is distributed.
It increases.
Mass has no influence on moment of inertia.
It changes the location of the mass.
In the equation for moment of inertia, which variable is most influential?
Radius of rotation
Impulse
Center of gravity
Mass
All are equally influental
What is the relationship between torque and angular acceleration?
The greater the torque acting at the axis of rotation, the lower the angular acceleration of a given body.
The lower the torque acting at the axis of rotation, the greater the angular acceleration of a given body.
The greater the torque acting at the axis of rotation, the greater the angular acceleration of a given body.
Torque and angular acceleration are not related.
Which quantity causes a change in angular momentum?
Linear acceleration
Impact
Torque
Linear impulse
Torque impulse
A diver attempts a 1 1/2 front flip in a tuck position off the 1 m board, but only rotates 1 1/4 times (ouch!). Which of the following suggestions in not appropriate for the diver?
Release tuck later
Tuck looser
Tuck sooner
Jump higher
Generate more angular momentum going into the dive.
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