Materials
Raindrops can separate light, causing them to act like _________.
Prisms
True or False.
Light travels through empty space.
True
_________ is a property of light, and refers to the intensity or amount of light.
Brightness
True or False.
Light moves in a straight beam.
True
An opaque object lets ______ light pass.
NO
Reflection
Most lampshades are made out of translucent materials, rather than transparent.
Explain why this is.
The light from the lamp would be too bright if the shade was transparent.
When light reflects, and bounces back, it travels in
a. straight line
b. two different directions
c. many different directions
d. stops traveling
c. Many different directions
Light is energy we _______.
See
A translucent object lets ___________ light pass.
Some / a little
Putting a pencil in water is an example of ____________, which is the bending of light.
Refraction
Visible
When light hits a pool, it ________ and bends when the light passes from air to water.
a. slows down and changes direction, bouncing off surfaces of the water
b. speeds up and moves in a straight line
c. slows and bends at the point the light hits the water
C. Slows and bends
Sun
Candle
Fire
Lightning
Projector
An example of a transparent object is ___________.
Glass
Plexiglass
Air
Light bends or refracts because light has hit an object that changes the __________ and ___________ of the light.
Direction / Speed
Name the colors in order.
Red
Orange
Yellow
Green
Blue
Indigo
Violet
Light reflects better off ______ and ________ materials.
a. shiny and bumpy
b. shiny and smooth
c. dark and thick
b. shiny and smooth
An example of something that reflects light is...
Us
White Board
Moon
Izzy can see David through the door, but it is fuzzy and she can't see any details. The door must be _________.
Translucent
A prism ________ light by refracting or __________ it.
Separates / bending
Black means all colors are _________, while white means they are all _______.
Absorbed / Reflected
a. two tennis balls
b.flashlight and mirror
c. two glowing ligh bulbs
d. burning candle and lens
b. flashlight (sun) and Mirror (moon)
How can astronomers detect stars that are far away?
See the light energy that stars give off