In Science, the Property That Keeps a Body at Rest
Puzzle 1 of Happy Hour Piece of Cake Pack
Question is: In Science, the Property That Keeps a Body at Rest
and the answer is: INERTIA
Word Meaning:
INERTIA — (physics, uncountable or countable) The property of a body that resists any change to its uniform motion; equivalent to its mass.
Definitions from Wiktionary.