Light and Reflection Concepts

Angle of Reflection

• 
• The angle at which light reflects off a surface

• The angle between the incident ray and the normal line

• The angle between the reflected ray and the normal line

Angle of Incidence

• 
• The angle between the reflected ray and the surface

• The angle between the refracted ray and the normal line

• The angle between two incident rays

Principal Axis

• Imaginary line through the center of a mirror.

• The line that defines the curvature of a lens.

• The axis around which an object rotates.

• A line that connects the focal point to the mirror surface.

Laws of Reflection

• 
• Light travels in a straight line until it hits an object.

• Reflection occurs only on smooth surfaces.

• The speed of light changes when it reflects.

Concave Mirror

• 
• A mirror that curves inward

• A flat mirror

• A mirror that reflects light in all directions

Transmission

• 
• A type of mechanical system

• A method of transportation

• A form of communication

Center of Curvature

• 
• The center of a sphere that defines a surface

• The point of intersection of the principal axis

• The distance from the lens to the focal point

Virtual Image

• 
• An image formed by the convergence of light rays

• An image that can be seen but not captured on a screen

• An image that is always larger than the object

Reflection

• 
• A type of light wave

• A method of data storage

• A form of physical exercise

Absorption

• 
• The act of soaking up liquid

• The ability to retain information

• The process of breaking down food