moment of inertia
Word Rarity
Rare
Frequency: Zipf frequency 3.17 in modern English
22
Scrabble Score
15
Letters
5
Syllables
9
Unique Chars
Meaning
noun
A measure of a rigid body's resistance to change in its angular velocity around a given axis.
noun
Second moment of area; a measure of a rigid body's resistance to bending.
Example Sentences
- "The moment of inertia of a rigid body is a quantity that determines the torque needed for a given angular acceleration about a given rotational axis, analogous to how mass determines the force needed for a given acceleration."
- "The moments of inertia of a heterogeneous body whose boundary is a surface of uniform density may sometimes be found by the method of differentiation."
- "Consequently, the moment of inertia of a body relative to any axis can be found when that for the parallel axis through its centre of gravity is known."
- "Stresses due to vertical shearing forces also depend on moment of inertia and are discussed in Chapter 8. Some mathematicians and stress analysts use the term second moment of area instead of moment of inertia. That term is, in fact, more descriptive of the definition of this property in the following discussion."
Inflected Forms
Phrases
Frequently Paired Words
Synonyms
mass moment of inertia
angular mass
rotational inertia
area moment of inertia
second area moment
second moment of area
second moment of inertia