Suppose you were stranded on a desert island with only a convex lens and a mirror. Describe how you could use each of these tools to signal for help. (2 points) 2-3 sentences
You could use the convex lens to start a fire by focusing sunlight onto a pile of dry leaves or wood. The smoke from the fire could be seen from a distance and signal for help. You could also use the mirror to reflect sunlight towards passing planes or boats, creating a flash of light that could catch someone's attention and signal for help.
