What is a pattern?
Somthing that repeats it's self.
What is electromagnetic spectrum?
The range of electromagnetic that is all around us, such as radio waves, visible light, and x-rays.
What is electromagnetic radiation?
A form of energy that is all around us, Including radio waves, visible light, and x-rays.
What is light?
The form of energy or electromagnetic radiation that makes it possible to see things.
What is a reflection?
The return of waves from a surface.
What is a medium?
Any matter that waves move trough.
What is energy?
The ability to do work. waves carry energy from one place to another.
What is the wavelength?
The distance between two corresponding points on a wave.
What is a frequency?
The number of times something repeats within a fixed period,such as as number of cycles per second.
What is the visible spectrum?
The part of the electromagnetic spectrum that makes it possible to see. it contains red, orange, yellow,green , blue,indigo and violet light
What is amplitude?
The height of wave from rest to crest, or from rest to trough.
What is a crest?
The highest point of a wave.
What is opaque?
The property of blocking all light. Light shining on a opaque object creates a shadow.
What is a trough?
The lowest point of a wave.
What does Transparent mean?
The property of letting almost all light to pass through. You can see through a transparent object.
What does Translucent mean?
The property of letting some light pass through. you can not see completely through a Translucent object.