An example of a osciallating motion?

Answer 1

-- a child on a park swing -- the pendulum in a grandfather clock -- the little balance wheel in your wrist watch -- the motion of the fuzzy dice hanging from the mirror when you apply the brakes -- the "Dutch Shoes" ride at the amusement park -- the front end of the "drinking bird" pump bringing oil up out of the oil-well -- the motion of each piston in your car's engine when you're driving -- the agitator in the middle of your washing machine -- what you do with the pump handle to fill a bucket of water at the camp ground -- the handle of the air-pump as you fill a Basketball or a bicycle tire -- the tip of an airplane propellor -- the yo-yo during the "cat's cradle" maneuver -- the speed-skater's arms during a sprint -- your arms while you're walking