a disturbance that carries energy and travels in a repeating pattern
What is a wave?
the direction of a longitudinal wave in relation to its particles
What is the same (parallel) direction
type of wave does not need a medium to travel
what are Electromagnetic waves
These are all parts of the eye
1. what is Pupil , ( Lens),Retina, Optic Nerve
Pattern Occurs when two wave crests meet
What is superposition
A disturbances that cause waves create
What is Oscillation?
distance between similar points on a wave called
What is the wave length?
happens to light rays when they bounce off a surface
What is reflection?
Type of waves carry signals for communication devices
What are communication waves?
Time taken for a wave to complete one back -and forth motion
Wave Period
One complete back-and-forth motion called
What is a Cycle?
the greatest height of a wave from its resting position
What is amplitude?
process occurs when light rays bend entering a new medium
what is refraction
This is the part of a device sends out radio signals
What is transmitter
The wave length related to the frequency
This let some of the light pass
what is translucent
the top and bottom parts of a wave known as
What are the crest(Top) and trough (bottom)
light hits an object but is not reflected or bent
This is part receives radio waves
What is receiver
This is opaque
what is the material that doesn't let light pass
moves perpendicular to the direction of the wave's particles
Transverse waves
the number of wave repetitions in a certain amount of time
what is frequency?
separates white light into different colors
what is prism
This type of signals use clear-cut values for coding and decoding
What are digital signals
This is transparent
what is the material that allow all the light to pass