Radiant Energy Flashcards
(19 cards)
This type of energy is used to warm earth’s land, water, and air. It is also used by plants during photosynthesis. It can be transformed into mechanical or electrical energy to produce power for homes and schools.
Radiant energy
Radiant energy that we can see.
Visible light
Like travels in (blank) waves
Transverse waves
The (blank) of a light wave can be measured from crest to crest or trough to trough
Wavelength
The number of waves that pass a point over a period of time
Frequency
Determined by wavelength
Color
The colors of: ROYGBV
Red, orange, yellow, green, blue, violet
What color has the longest wavelength and shortest frequency on the visible spectrum
Red
What color has the shortest wavelength and highest frequency on the visible spectrum
Violet
The sum of the colors
White light
Light passes through easily
Ex: plastic wrap, water, and air
Transparent
Light partially passes through
Ex: wax paper, frosted glass, thin, fabrics, and thin paper
Translucent
Light does not pass through at all
Ex: metal, wood, and bricks
Opaque
True or false:
Light travels in a straight path until it hits an object
True
When light bounces off an object
Reflection
When lightwaves bend
Refraction
Disperses white light into individual colors
Prism
