Wave Basics
What is frequency?
Amount of waves per second
What type of wave is a sound wave?
Longitudinal
If one wave is 1 cm high and another wave at the same point is 1.5 cm high, what is the resultant wave height?
2.5 cm
What is the speed of a wave with the frequency of 26 Hz and wavelength of 2m?
52 m/s
What happened in the pendulum lab when we pulled the pendulum farther away?
The frequency and period stayed the same!
What is a period?
seconds/ waves. The opposite of frequency
What happens to the speed of sound as temperature goes up!
It gets faster!
If one wave is 2.5 cm tall and another wave is also 2.5 cm tall, what is the resultant wave?
5 cm
What is the frequency of a wave pattern that has 6.5 waves in 2 seconds?
3.25 Hz
What happened in the pendulum lab when we changed the length of the string?
What is amplitude?
Height of the wave
What happens to sound when something is moving TOWARDS and object?
Frequency get higher!
If one wave is 3.5 cm tall and another was is -4 cm tall, what is the resultant?
-0.5 cm
What is the beat frequency between 2 speakers emitting frequencies of 283 Hz and 275 Hz
8 Hz
What happen in the alien invasions part of the stations lab?
Sound amplified with the pink megaphones, sounded like "space" movies
What is a wavelength?
The length of 1 wave.
What is an echo?
Sound that bounces off of something
If two waves are 40.2 cm tall at the same point, what is the resultant wave.
80.4 cm
346 m/s
What happened with the tuning fork and the water in the sound station lab?
The tuning fork vibrated and made a wave pattern in the water
What is the difference between longitudinal and transverse waves?
Transverse waves are normal waves like the ocean. Longitudinal waves are like a pulse, forward and back.
How do you find the beat frequency?
Subtract the 2 frequencies
What would the resultant wave look like if one wave that has a large height is above the x axis, and one wave that has a small height is below the x axis?
a smaller wave above the x axis
If you shout into a cave that is 1.2 m deep and the speed of your voice travels at 46 m/s, how long does it take for you to hear your ECHO?
0.05 s
What was the best station and why?
answers vary