Colleen replicates an X-ray machine by covering an open shoebox with a screen and positioning a square cardboard piece in the center. She uses sand to simulate X-ray radiation, sprinkling it over the screen. Upon removing the screen, she observes an outline of the square cardboard. What does the cardboard symbolize in her simulation?(1 point)

Question

Colleen replicates an X-ray machine by covering an open shoebox with a screen and positioning a square cardboard piece in the center. She uses sand to simulate X-ray radiation, sprinkling it over the screen. Upon removing the screen, she observes an outline of the square cardboard. What does the cardboard symbolize in her simulation?(1 point)
Responses

the veins that look white in an X-ray
the veins that look white in an X-ray

the bones that look white in an X-ray
the bones that look white in an X-ray

the areas that remain black on the X-ray
the areas that remain black on the X-ray

the person being scanned with X-rays

GPT-4o mini · Answer

The correct response is **the bones that look white in an X-ray**. In an X-ray, denser materials like bones absorb more radiation, appearing white on the image, while less dense materials allow more radiation to pass through, appearing darker. The cardboard in Colleen's simulation represents the bones, as it obstructs the sand (simulating the X-ray radiation) and creates an outline upon removal of the screen.