rolling ball

• spherePerfectly round solid
• bounceSpring back after impact
• marbleRecrystallized limestone rock
• momentumProduct of mass, velocity
• pinballFlipper-controlled arcade game

bowling · ramp · gravity · spin · tumble · slope · arcade · billiard · velocity · round · smooth · kinetic · roll · curve · descent · wheel · toy · physics

• pet toysball, bone, chew toy, fetch toy, plush toy
• physics labpendulum, circuit, magnet, inclined plane, pulley
• Mazesmaze, labyrinth, corn maze, hedge maze, ball maze
• wind-up toyswind-up toy, wind-up car, chattering teeth, cymbal monkey, dancing figure