Course: Science Subtest I
Lesson: Optics and Waves
Topic: How We See      Page 13 of 27  

Shadows are formed when the straight-line path of light is blocked by an opaque body. The shape of the shadow is a two-dimensional projection of a three-dimensional object. The size of the shadow depends on the distance from the light source to the object and the distance from the object to the screen.


The size of a shadow depends on the distance from the light source to the object, and from the object to the screen.