Light Basics
This term refers to electromagnetic radiation visible to the human eye.
What is light?
The bouncing back of light when it strikes a surface.
What is reflection?
A mirror that curves inward.
What is a concave mirror?
This part of the eye controls the amount of light entering.
What is the iris?
These eyes have perfectly rounded lenses and can see practically in every direction.
What are fish eyes?
Light travels in these straight paths.
What are rays?
The bending of light as it passes from one transparent medium to another.
What is refraction?
A mirror that curves outward.
What is a convex mirror?
The part of the eye that changes shape to focus light onto the retina.
What is the lens?
These eyes are w-shaped and the whole eye changes shape to focus.
What are cuttlefish eyes?
The primary source of light on Earth.
What is the Sun?
This law states that the angle of incidence equals the angle of reflection.
What is the law of reflection?
This type of mirror is often used in security mirrors.
What is a convex mirror?
These cells in the retina are responsible for color vision.
What are cones?
eyes located together in the front of their face, which allows them excellent depth perception during their hunting expeditions
What are owl eyes? (will accept predator eyes)
Objects are those that emit or produce light.
What are luminous objects?
The type of image formed by a plane mirror.
What is a virtual image?
The type of image formed by a concave mirror when the object is between the mirror and the focal point.
What is a real image?
The transparent, curved outer layer of the eye.
What is the cornea?
The scientific term for compound eyes.
What are ommatidia?
The study of light and its properties.
What is optics?
The phenomenon responsible for the bending of light as it passes through a lens.
What is lens refraction?
The type of lens that diverges light rays.
What is a concave lens?
The area of the retina where vision is sharpest.
What is the fovea?
Animals have this structure which allows them to see in the dark.
What is the tapetum lucidum?