Parking sensors

Do you know how some cars have beep-beep sounds when they back up? Well, those cars have parking sensors. Parking sensors are little helpers on cars that help drivers know if they are getting too close to something, like a wall, a trash can, or even a person. They work by using small sensors that can detect how far away things are from the car. When something is too close, the sensors send a message to the car's computer, which then makes the beep-beep sound. This helps the driver know when to stop or change direction to avoid a bump or collision. It's kind of like having a little friend in the car who looks out for you when you're backing up!