Vocabulary
This term describes an "incoming" light ray.
Incident Ray
This is an optical device that uses a series of lenses to view very small objects.
Microscope
This property describes why we cannot see around corners
Light travels in straight lines
This type of material allows most, if not all, light to pass through.
Transparent
Pythagoras believed this about vision, partly because of the way animal eyes appear to glow in the dark.
We shoot light from our eyes.
We use this word to describe light rays coming together.
converge/convergence
This device causes light to bounce off with the same angle that it approached when measured against the normal line
Plane mirror
Newton discovered this property of white light when he shined it through a prism.
This type of material allows only some light to pass through.
Translucent.
This man was the first person to accurately describe how our vision actually works, with light bouncing off of objects and into our eyes.
Ibn Al-Haytham
This is the word we used to describe light rays being scattered, or sent apart.
Diverge/Divergence
This device uses mirrors to gather light and create an enlarged image of a far away object
Reflecting telescope
Light bends because it changes its _____ when entering a new medium.
This type of material does NOT emit light.
This term describes light bouncing off of a rough surface, in a disorganized way.
Diffuse reflection.
This word describes light bouncing off of a surface.
Reflection
This device reflects light rays in a way that gathers them to a focal point.
Concave mirror
Light is often compared to water and sound because it travels as a ____
Wave
This type of material does not allow any light to pass through.
Opaque
Light from a single source hits an opaque object, and then cannot reach the space behind the object. This forms a ____.
Shadow.
This is the word used to describe the bending of light when passing from one medium to another.
Refraction
This device is like two telescopes attached together, and has a similar purpose.
Binoculars.
Light is the fastest thing in the universe. It has a speed of:
299 792 458 m/s
The sun, fire, and light bulbs are examples of this type of light-emitting material.
Luminous.
This term describes light that bounces off of an interface, rather than passing through it. We take advantage of this with things light optical cables.
Internal reflection.