This type of wave NEEDS a medium to travel through.
What is a mechanical wave
100
It is the distance from "from rest to crest"
What is amplitude
100
This is the process of a wave bouncing off an object at the same angle it hit.
What is reflection
100
Sound is an example of a ______________wave and a _____________wave
What is mechanical and longitudinal wave
100
A wave has a period of 0.4 s. Find the frequency of the wave
What is 2.5 Hz
200
This type of wave can travel through a vacuum (space!).
What is an electromagnetic waves
200
A waves has a frequency of 450 Hz. What is the period?
What is 0.0022 s
200
Two light waves come into contact. The crest of wave A overlaps with the trough of wave B. Are they in phase or out of phase? What type of interference will occur?
What is out of phase, destructive
200
If someone starts to scream with a very high pitch, they are creating a sound with a very high _______________.
What is frequency
200
A sound wave is traveling at 90 m/s, and has a wavelength of 0.56 m. What is its frequency?
What is 160.7 Hz
300
Longitudinal waves oscillate ____________ direction of propagation
What is in the same
300
An ocean wave has a wave speed of 4 m/s and a frequency of 0.7 Hz. What is the wavelength?
What is 5.7 m
300
A light wave was traveling through air, and hits water at an angle, such that it is refracted. Draw and label diagram of the situation.
The wave must bend towards normal when it hits the water
300
Marla is whispering to her friend during physics class. The amplitude how her sound wave must be __________
A. Larger
B. Small
C. Loudness it related to frequency, not amplitude
What is small
300
Two sound waves are traveling through the same container of liquid nitrogen. Wave A has a wavelength of 7.5 m. Wave B has a wavelength of 1.5 m. The speed of wave B must be ________ the speed of wave A.
a. greater
b. equal
c. the same
d. not enough information
What is equal
400
Draw a transverse wave, and give two examples.
What is light or ocean wave.
400
A light wave has a frequency of 600 Hz, and a wavelength of 0.05 m. What is its wave speed (velocity).
What is 30 m/s
400
During diffraction, a wave travels through a small aperture, and begins to ____________ and ______________.
What is curve and spread out
400
Why can't you hear sound in space?
This is because sound is a mechanical wave, and therefore needs a medium to travel through. Space is a vacuum, so sound cannot travel
400
When a wave reflects, the incident angle is ___________the reflection angle. However, when a wave refracts, the incident angle is ________________ the refracted angle.
What is equal, greater than
500
Can a mechanical wave travel through water? WHY OR WHY NOT?
Yes, because water is a medium, and mechanical waves can travel through mediums.
500
A wave has a period of 0.8 s and a wave speed of 3.6 m/s. What is its wavelength?
What is 2.88 m
500
Two sound waves are traveling through the air, and are in phase. Wave A has an amplitude of 6 m, and wave B has an amplitude of 2 m. After they interfere, what will the resulting amplitude be?
What is 8 m
500
Explain what is happening when you hear an echo
Sound waves are reflecting of objects and bouncing back to your ears.