1. A car: The wheels of a car are attached to the axles, which are in turn attached to the chassis. When the car moves, the wheels rotate on the axles, causing the car to move forward.
2. A doorknob: The doorknob is attached to a spindle, which is a type of axle. When you turn the doorknob, the spindle rotates, causing the door to open or close.
3. A bicycle: The wheels of a bicycle are attached to the axles, which are in turn attached to the frame. When you pedal the bicycle, the wheels rotate on the axles, causing the bicycle to move forward.
