U6 Waves Review WS
Learning Target 1: I can explain how mechanical and electromagnetic waves transfer energy.a. compare and contrast mechanical and electromagnetic waves.
b. compare and contrast transverse and longitudinal waves.
c. waves are caused by ______?
d. waves transfer ______not ______?
Learning Target 2: I can describe waves in terms of speed, frequency, amplitude,wavelength.
a. what is the relationship between frequency and wavelength? Include a sketch in your answer.
b. what units are used for frequency….what do they represent?
c. label transverse wave (crest, trough, wavelength, amplitude) and longitudinal wave (wavelength,
rarefaction, compression)
Learning Target 3: I can explain behavior of waves as they move through different materials and when they interact with other waves. (Refraction, reflection, diffraction, absorption, interference)
a. Match the description on the left with the type of wave behavior on the right.
_____ Waves bounce off a surface or an object. A. diffraction
_____ Waves bend around an object or an opening. B. constructive interference
_____ Light waves bend as they change mediums. C. destructive interference
_____ Two waves overlap to produce a larger amplitude. D. reflection
_____ Two waves overlap to produce a smaller amplitude. E. refraction
b. Draw two waves that will interfere constructively and two waves that will interfere destructively,
and draw the resulting wave produced in each case. Label each case constructive or destructive
interference.
c. Match the following terms with the diagrams.
Standing wave ____ (hint: formed in musical instruments)
Diffraction _____ (hint: remember the “rainbow” glasses)
Refraction _____ (hint: explains why a straw in a glass of water appears “broken”)
Doppler effect ______Reflection ______Interference ______
Learning Target 4: I can explain and give examples of the Doppler Effect.
a. whatwave behavior or characteristic causes the Doppler effect?
b. what is the result of the Doppler effect?
c. Describe at least 2 ways that the Doppler effect is useful.
d. Description: The figure below shows a train traveling toward the right and sounding its horn.
Three people are shown at locations A, B, and C. Assume that all three people can hear the train blowing its horn.
Ranking Instructions: Rank the pitch of the horn from highest pitch (or frequency) to lowest pitch (or frequency) as heard by each person (A – C)
Ranking Order: Highest 1______2______3______Lowest
Or, the pitch heard by each person would be the same. ____ (indicate with check mark).
Carefully explain your reasoning for ranking this way:
Ranking Instructions: Rank the wavelength (from longest to shortest) of the sound of the horn as heard by each person (A – C).
Ranking Order: Longest 1______2______3______Shortest
Or, the wavelength heard is the same for each person.____ (indicate with check mark).
Carefully explain your reasoning for ranking this way:
Learning Target 5: I can explain how wavelength, energy and frequency of waves change over the electromagnetic spectrum.
a. List the 7 regions of the EM spectrum from low frequency to high frequency.
b. List the 7 regions of the EM spectrum from shortest wavelength to longest wavelength.
c. Which region has waves with highest energy? lowest energy?
d. In a vacuum, all EM waves have the same____.
e. Explain why we see the flash of lightning before we hear thunder.
f. What causes an electromagnetic wave to form?
g. Describe the difference between the following in terms of…….?
ENERGY: orange visible light and microwaves
WAVELENGTH: x-rays and infrared
FREQUENCY: gamma radiation and radio waves
d. Energy, wavelength and frequency: violet visible light and ultraviolet radiation
h. In asciencefictionmovie,anearbyspaceshipexplodesandyouheartheexplosiononyourship. Isthis realistic? Whyorwhy not?