Chapter 11 Flashcards
Define linear inertia
Resistance to change in velocity
Define rotational inertia
Resistance to change in angular velocity
Inertia is part of which of newtons laws of motion?
The first law
An object with less mass has more inertia - true or false?
False - an object with more mass is more resistant to a change in velocity or inertia
The amount of rotational inertia is determined by the ________.
Moment of inertia
What 3 factors does the moment of inertia depend on?
1 - mass
2 - distribution of mass
3 - axis of rotation
What are the units for the moment of inertia?
Kgm^2
Why might throwing a thin circular disk not go as far as when you throw a thin circular hoop (frisbees)?
The hoop, has a larger moment of inertia because it’s mass distribution is farther from it’s axis.
What is the difference between a regular shaped object and an irregular shaped object?
A regular shaped object has a uniform mass distribution.
