3.1
Not letting light pass through
opaque
Light that comes from an object God made
Natural Light
To gather together into one place
Focus
The bending of light rays
Refraction
The colors of the spectrum in the order that they always appear
Red, Orange, Yellow, Green, Blue, Violet
Allowing light to pass through; clear
Transparent
Light that comes from an object man made
Artificial light
Reflection
A lens that is thicker in the middle than at the edges; scatters light rays
Convex Lens
What are the warm colors?
Red, orange, yellow
Allowing light to pass through, but scatters the light
Translucent
Who invented the electric light bulb?
Thomas Edison
A mirror that bulges away from the viewer
Concave
A lens that is thicker at the edges than in the middle; focuses light rays
Concave Lens
What are the cool colors?
Green, Blue, Violet
How does light always travel?
Name three types of artificial lights
Lightbulb, campfire, candles, lamps, etc.
A mirror that bulges toward the viewer
Convex
Who made the first telescope?
Sir Isaac Newton
Which color in visible light has the longest wavelength? Which one has the shortest?
Red, Longest; Violet, Shortest
The speed of light
186,000 miles per second
Explain how an incandescent bulb works.
What is the difference between what concave mirrors and convex mirrors do to light?
Concave mirrors focus light, Convex mirrors scatter light.
Who invented the reflecting telescope?
Hans Lippershey
Explain why a green object appears green.
The object absorbs every color of the spectrum except green, and reflects only green