Contact: Sliding a hockey puck across the ice, Pulling a rope during tug-of-war, Rolling a ball across the floor, A person pushing a couch, Your chromebook sitting on the table, A skier skiing down a slope, Holding your phone in your hand, A chair sitting on the floor, Pulling a sled, A car being driven down the road, Non Contact: A pencil falling off a desk, A charge repelling another charge, An apple falling from a tree, A magnet pulling on an iron nail, A skydiver falling out of an airplane, A hot air balloon floating in the sky, A basketball after being shot, A feather being blown by the wind, 2 positive charges repelling each other, A bird flying in the air,

Leaderboard

Visual style

Options

Switch template

Continue editing: ?