principle of virtual work


noun Mechanics.

the principle that the total work done by all forces on a system in static equilibrium is zero for a set of infinitesimally small displacements.

QUIZZES

ELEMENTARY SCHOOL PUNCTUATION QUIZ

Punctuation marks help make writing easy to read and understand. Some of the most important ones are the period (.), comma (,), question mark (?), and exclamation point (!). How well do you know how to use them? Find out in this quiz!
Question 1 of 10
Which punctuation mark is best for this sentence? "Can I watch a movie __"
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020