Light
The distance between crests of a wave
Wavelength
Light produced in a chemical reaction
Chemiluminescence
The bending of light through a different medium is called
Refraction
What is the most dangerous type of EM rays to humans
Gamma
Darker part of a shadow
Umbra
The number of waves that pass a point in a set amount of time
Frequency
Light that occurs in nature
Bioluminescence
What is the term for being able to view objects up close clearly but having difficulty seeing things that are far away
Near sighted
What Kind of EM Radiation do phones use mainly
Microwaves
Visible light is measured in what, think of lightbulbs
Lumens
Define Light
Electromagnetic energy made of different wavelengths
When Radiation is absorbed by a substance
Phosphorescence
Draw and Label Concave and Convex Mirrors. Which one converges and which one diverges
Answers will show
What Kind of EM Radiation does bone imaging use
X-Rays
How do you correct near sightedness
concave lens
Give two characteristics of good light reflectors and two of poor light reflectors
Answers will vary
Give two natural and two artificial sources of light
Answers will vary
Draw and label Concave and Convex lenses
I will Look
What Kind of EM Radiation does Thermal Imaging use
Infrared
How do you correct far sightedness
Convex lens
Two Main Categories of Light (Light from heat/light not from heat)
Incandescence and Luminescence
When light is emitted by an object and atoms absorb radiation and are in an excited state, producing a longer wavelength.
Fluorescence
Name the two types of reflection. One is perfectly reflected the other is not evenly reflected.
Specular and Diffuse
Label all seven categories of the EM spectrum in order from lowest to highest frequency
Radio-Microwaves-Infrared-Visible Light-UV-XRays-Gamma Rays
Whats the difference between a real and virtual image
Real can be projected onto a screen and virtual appears to be behind a mirror or lens