What Does Inertia Mean?


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The term inertia as a noun is most commonly used in the field of Physics. The notion of inertia is by and large defined by means of Sir Isaac Newton's First Law of Motion. It states that 'Every body perseveres in its state of being at rest or of moving uniformly straight ahead, except insofar as it is compelled to change its state by forces impressed.'

In general the term inertia is used to mean resistance or aversion to motion, change or action. Synonyms for the same include the words inactivity, inactiveness. The term has been applied in a number of other cases such as Social inertia which is used in psychology and sociology to describe an individual's resistance to change.

The adjective form of the word inertia is inertial while inertially is the adverb form of the same. It is Latin, meaning idleness; coming from iners, inert-, inert.

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