Waves Mix
Parts of a Wave
Wave Behavior
E&M Spectrum/Doppler Effect
Wave Calculations
100
transverse wave move perpendicular to the direction of the wave but longitudinal waves...
move parallel to the wave
100
Name the parts of the wave.
Crest, Trough, Amplitude, Wavelength
100
What are the four types of wave behaviors?
Reflection
Diffraction
Refraction
Absorption
100
How would you describe the EM Spectrum?
the spectrum that has the range of all types of electromagnetic radiation
100
A speaker vibrates at a frequency of 322 Hz. What is the period?
322=1/T
T=1/322
T=.00310 seconds
200
Mildred went to watch her friend's rock band play in their garage. The strings on the electric guitar were disturbed and they vibrate because of their natural frequency, the garage doors however vibrated because of?
Resonance
200
If the amplitude of a wave increases so will the...
Energy
200
Cindy is able to hear Tammy gossiping about her around the corner of the hallway since the door to her homeroom was left open. What wave behavior allowed this to happen?
Diffraction because the sound waves were bending and spreading as they go through the doorway
200
Because of the doppler effect what occurs when an ambulance passes by?
The pitch of the ambulance is louder as you are closer to it but when it passes by there is a drop in pitch
200
An oscillating swing has a period of 18 seconds. What is its frequency?
f=1/18
f=.0556 Hertz
300
Andre is a professional violin player. How is the beautiful sound from the violin created when she performs?
As the violin strings are disturbed they vibrate and cause the surrounding air particles to vibrate as well
300
How can the amplitude of the wave be defined as?
the distance of a wave from the line of equilibrium or still position to either the crest or trough of the wave
300
Granny Smith does not have the best eyesight, but thanks to her new glasses she still able to read her cooking book and re-create her famous apple pie recipe, what wave behavior allows this?
Refraction bends the light and causes magnification allowing Granny Smith to read off her recipe book
300
How would Radio Waves differ from X-rays?
* They have a longer wave length
*Lower Frequency
*Lower Energy
300
A water wave has a frequency of 13 Hertz and a wavelength of 3 meters. Calculate its speed.
Formula: v=λf
v=3*13
v=39 m/s
400
Mickey is pointing a laser beam at a mirror at a 36 degree angle as he plays with his cat, at what angle will the laser be reflected back?
at 36 degrees because it will bounce off
400
From what different points can a wavelength be measured from?
Crest to Crest
Trough to Trough
One point of Equilibrium to another point of equilibrium
400
The wave shown in the picture is oscillating as time passes by but the peak amplitude does not change, what would we call this type of wave?
stationary wave
400
In astronomy we observe cosmic bodies that have a short wavelength and increased frequency as being a blue shift. However a blue shift can be described as?
An increase in wavelength and a decrease in frequency
400
A wave has a speed of 6m/sec and a frequency of 12 Hz. Calculate its wavelength.
Formula: λ = v/f
λ=6*12
λ=72
500
A sound wave (mechanical wave) is traveling through air and makes its way into a new medium which is water. What happens to the sound wave?
some of the wave is reflected back and some of it was transmitted into the new medium which was water
500
How would you define the frequency of a wave?
how often/frequently the particles of the medium vibrate when a wave passes through the medium
500
Complete the phrase: In constructive interference the amplitudes of two waves are ______ while destructive interference the amplitudes of two waves are_______
added; subtracted
500
Ultraviolet rays are considered to be extremely harmful to humans because it can cause eye damage, pre-mature aging, and a variety of skin diseases. Based on what you know about the EM Spectrum what allows these rays to cause so much harm?
Because the rays' wavelength are so short they have a higher frequency and give off higher amounts of energy
500
What are the units for wavelength, wave velocity, period, frequency respectively.
Meters, m/s, seconds, Hertz