Question

What's inertia?

Inertia is the tendency of an object at rest to remain at rest; or the tendency of an object to continue moving if it is moving. In plain language, it's the tendency of an object to want to continue doing whatever it's doing.

I had a definition years ago given to me, and it still stands in the era of relativity:
Inertia is the property of matter that resists changes in its motion.

Related Questions

what is the tendency of an object to remain at rest or to remain in motion inertia Which statement best describes the inertia of an object? A.Inertia is the tendency of an object... 15 of 2015 of 20 Items Question Newton's First Law says that a... Newton's First Law says that an object at rest will remain at rest, and an object in motion will rem...