Parts of waves
What is the distance between two crests of a wave called?
Wavelength!
The higher the frequency, the higher the .......
Pitch!
.... materials allow light to pass through with almost no disturbance
ex. glass
Transparent materials
Light travels ..... then sound
Faster!
What type of wave is a sound wave?
A longitudinal wave
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What is the highest point of a transverse wave called?
The Crest
The number of crests that pass a point IN A GIVEN TIME is its ....
Frequency
... materials allow almost no light to get through
Opaque materials
What term describes a wave changing direction when it enters a new medium?
(Straw in water)
Refraction
Draw two transverse waves. One with a low pitch low amplitude and one with a high pitch high amplitude.
Good job!
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What is the measure of the amount of energy or intensity of a wave called?
Amplitude
What type of wave moves parallel (side to side) compared to perpendicular (up and down)?
Longitudinal Wave
.... materials allow some light to pass through, while also bouncing it in many directions
Translucent
(Surprise! +50 to any team that got that)
What term describes a wave hitting a substance and bouncing off of it?
Reflection
Many colors of light (the rainbow colors) travel from the sun toward a red apple.
Which color is reflected by the apple?
Red!
What is the lowest point of a wave called?
Trough
Sound waves need ..... to travel through
(fancy word for sound matter)
A medium
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When white light shines on one side of a prism, many different colors can be seen on the other side of the prism.
Which statement describes how so many colors can be seen when white light shines on a prism?
(Hint: I'm looking for a specific word)
The prism REFRACTS the white light
.... of light occurs when an object does NOT reflect or transmit the light
Absorption
Light shines on a blue dress. The light is made up of red, yellow, green and blue light. Which color(s) does the dress ABSORB and which color(s) does the dress REFRACT?
It REFLECTS almost all blue light
It ABSORBS almost all red, yellow, and green light.
What is the part of a longitudinal wave where the waves are further apart instead of compressed together called?
Rarefaction
What type of wave transfers energy through a medium.
Hint at the specific type of wave. The answer is not just sound wave.
Mechanical Wave
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What type of color AND material (rough or smooth) is the BEST at reflecting light AND is the WORST at reflecting light?
Best- Smooth White Material
Worst- Rough Black Material
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What specific type of reflection is when light is scattered in different directions?
Diffuse Reflection
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Draw a transverse wave completely from scratch with the following labels: amplitude, crest, trough, wavelength.
Answers may vary
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