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What is the top of a light wave called?
Crest
What kind of materials allow light to pass through easily?
Transparent
How do we measure the size of a light wave?
Wavelength
What kind of materials allow some light to pass through but not all light?
Translucent
What color in the visible spectrum has the shortest wavelength?
Violet
What is the ACRONYM and what does each letter stand for that tells us the order of colors from longest wavelength to shortest wavelength?
ROY-G-BIV
Red, Orange, Yellow, Green, Blue, Indigo, Violet
True or False. Light does not need a medium (some type of matter) to travel through.
True. Light does not require a medium to travel through.
What color in the visible spectrum has the longest wavelength?
Red
What happens when rays hit a mirror?
Reflection
Light travels in straight paths called what?
Rays
What is the bottom part of a light wave called?
Trough
What kind of materials allow no light to pass through?
What is an example of a TRANSPARENT object?
Clear glass like in a window, clean water, clear plastic wrap, and air.
We see individual colors when we look around us because that specific color is being ___________ while all other colors are being ___________.
We see individual colors when we look around us because that specific color is being REFLECTED while all other colors are being ABSORBED.
Black and white are not colors in the visible spectrum. We see black because all colors are ______________.
Absorbed
Black and white are not colors in the visible spectrum. We see white because all colors are ______________.
Reflected
What is an example of a TRANSLUCENT object?
Wax paper, tissue paper, frosted glass, thin fabrics, and thin paper.
Which of the following scenarios best shows refraction of light the best looking at yourself in the mirror, looking at a shadow on the wall, viewing an object through an open window, or viewing an object partially in water?
Viewing an object partially in water, the object looks as though it bends!
True or false. If a light wave has a low frequency, low speed, and low energy then it has a big wavelength.
True. A light wave with a low frequency, low speed, and low energy will have a large wavelength.
What is an example of an OPAQUE object?
Metal, wood, bricks, and aluminum foil.
True or false. If a light wave has a high frequency, high speed, and high energy then it has a big wavelength.
False. A light wave with a high frequency will have a short wavelength, not a big one.
When light waves travel through one transparent material into another transparent material with a DIFFERENT density the light waves bend it is called?
Refraction
True or False. Plants absorb light to make their own food.
True. Plants USE LIGHT to make their own food.
Radiant energy is ________ energy.
Light Energy!
Which of the following does NOT show an example of radiant energy transformed into other forms of energy, Light from the sun powering solar panels for a home's electricity, Plants using the sun to create chemical energy (food) during photosynthesis, A wind turbine generating electricity for a small farm?
A wind turbine generating electricity for a small farm.