OUTCOME
By the end of this lesson you will be able to describe and calculate the moment of inertia for object that are turning and rotating
Engage
The Mass moment of inertia describes the distribution of mass for a given rotational axis if the body
I can be found using I = mR2 where R is the distance from the rotation axis.
LEARNING TASKS
Explain
1. Why is the moment of inertia described as the inertia for rotation?
2. Explain why the distance from the rotation axis is so significant to the moment of inertia
3. Why does a ring of same mass as a solid disk, have a larger moment of inertia?
What happens when they both roll down a ramp?
Explore and Elaborate
Design an experiment that can test the moments of inertia of a disk and a ring and the same mass. What variables are involved? which might effect performance?
Evaluate
Sample problem 6
Ex 22.3