5. A headlight on a bike must be visible from at least ___ feet.
   500
   800
   1000

A headlight on a bike must be visible from at least 500 feet. This visibility distance is set to ensure that cyclists are easily seen by motor vehicle operators, especially during low-light conditions. Safety regulations like these help to protect cyclists on the road.

When riding at night or in low visibility conditions, don’t forget that a good headlight can be your best friend! Check to ensure your light is charged and functioning correctly, and consider wearing reflective gear or using additional lights to enhance your visibility even further. Safety first, after all!