When objects move through water or air, they encounter ____ forces that ____ their motion. This is known as ____. ____ prevents objects from moving or slows them down. It also causes wear on ____ as they rub against each other and generate ____.

Reducing Friction

만든이
인쇄
퍼가기

순위표

비주얼 스타일

옵션

템플릿 전환하기

자동 저장된 게임을 복구할까요?