Name__________________________________________ #________
5.3 Light:
Transverse WavesFill in the blanks using the following words.
trough transverse wavelength not highest
empty crest frequency between lowest
Light travels in transverse waves.
Parts of a transverse wave● Crest: The highest point of a transverse wave
● Trough: The lowest point of the transverse wave
● Wavelength: The distance _between two crests (or troughs) in a transverse wave
● frequency: is the number of waves passing a given point every second. The greater the
frequency, the greater the amount of energy.
Unlike sound, light does not need a medium to travel through. Light can travel through empty space.
The Visible SpectrumFill in the blanks using the following words. *Some words may be used more than once
white black red blue yellow orange violet green blue
List the colors of the visible
spectrum in order from longest wavelength to shortest wavelength
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● ________________________
● ________________________
● ________________________
The color with the longest wavelength:red
The color with the shortest wavelength: violet
Black and white are not on the visible spectrum.
● ___________________ is when a material absorbs all the visible light and no light is reflected
back. It is a total absence of reflected light.
● _____________________is a reflection of all visible light together.
Opaque, Transparent, and Translucent
Sort the following objects as opaque, transparent, or translucent.
aluminum foil sunglasses notebook clear plastic food wrap (saran wrap)
brick wall thin fabric stained glass windows window
eyeglass lenses clean water wax paper wood
Opaque(light does not pass through)
Transparent(light passes through easily)
Translucent(light partially passes through)
Reflection and RefractionFill in the blanks using the following words.
prism same bending bounces rainbow
Reflection Refraction
Light is reflected when it hits an object and
bounces off. It is reflected at the same angle.
Refraction means the bending of a light wave
when it moves from one medium to another (ex:
air to water).
A prism iis used to refract white light and
disperse (spread) it into the color spectrum
(ROYGBV)
A rainbow_is an example of both refraction and reflection. Sunlight is first refracted when it enters
the surface of a spherical raindrop, it is then reflected off the back of the raindrop, and once again
refracted as it leaves the raindrop.
Label each picture as reflection or refraction
refraction _ __ reflection reflection refraction