Angular Kinetics

Question 1

What is angular inertia?

Answer 1

measure of resistance to changes in angular motion of a body or implement

Question 2

How is angular inertia determined?

Answer 2

mass and mass distribution (distance of mass from axis of rotation)

Question 3

What is angular momentum?

Answer 3

changes in moment of inertia (body position) will be compensated by angular velocity (increases or decreases)

Question 4

How can gravity assist with rotation?

Answer 4

• Gravity can be a motive force that creates torque and angular motion
• gravity can also be a resistive force (slows motion)

Question 5

What is the angular interpretation of Newton’s 3rd Law?

Answer 5

For every torque exerted by one body on another, the other object exerts an equal torque back on the first but in the opposite direction (action/reaction)