smooth - less friction force, rough - more friction force, push - a force away from your body, pull - a force towards your body, friction - a force opposite the motion of an object, When there is friction - an object slows down, When there is no friction - an object keeps moving, A force can make an object - speed up, slow down or change direction,

Forces and Motion - Balloon Pop

Табло

Визуален стил

Опции

Шаблон за превключване

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