Student Contributed Content
Formatting Guide
Hey everyone we're trying to keep everything as orderly as possible, which is probably a fool's errand. To stop things from getting too out of hand we ask
- Keep content you add to the appropriate section
- Arial font size 14
- On bullets. Post description of content - link to content.
- keep it clean...
Example Problems
- If a human heartbeat has a frequency of 1.17 Hz what frequency will a nurse hear when using a stethoscope that is 70 cm long?
- Doppler Effect + Rotational Mechanics
A person is riding a merry-go-round which has a radius of r=3m and an angular speed of w=3rad/s. If the person starts to blow a whistle of frequency f=485Hz what is the approximate highest frequency heard by a listener at rest a long distance away? Speed of sound in air is 340m/s. - Practice quiz on the doppler effect: https://dev.physicslab.org/PracticeProblems/Worksheets/Phy1/Waves/doppler...
- https://www.youtube.com/watch?v=ADTO3VljASY video goes through two sample problems with doppler shift.
- Example problems and equations: https://formulas.tutorvista.com/physics/doppler-shift-formula.html
- This is a simulation that includes practice problems (based on the simulation) to help you grasp the concept of the Doppler Effect - https://soundphysics.ius.edu/?page_id=843
Lecture Material & Videos
- Carl Sagan's Cosmos: The Doppler Effect. In this short segment from the episode "Journeys in Space and Time" of Cosmos: A Personal Voyage, astronomer Carl Sagan describes the doppler effect using the example of a train's whistle as it passes by. Using animation over the train footage, he shows how the sound waves change frequency as the train moves (later in the episode, he connects this example to redshift and blueshift of light as it travels through space). Link: https://www.youtube.com/watch?v=1kTXmT_KJvE.
- Khan Academy introductary video on The Doppler Effect. 10 minute intro, overview, and examples to this effect. https://www.khanacademy.org/science/physics/mechanical-waves-and-sound/d...
- Explanation of the Doppler Effect: https://www.youtube.com/watch?v=h4OnBYrbCjY
- Khan Acadamy reviewing the doppler effect using the fomula for observed frequency; using examples when the source is moving away when the observer is moving, and reflection off a moving object. (10:12) -https://www.khanacademy.org/science/physics/mechanical-waves-and-sound/d...
- Michel van Biezen is back at it again with another great video. This video offers a crash course in Doppler Shifts with all the accompanying concepts and equations. Link: https://www.youtube.com/watch?v=soqarQ_fuvg .
- Bozeman Science video that provides background on the Doppler Effect, explaining it in various situations: https://www.youtube.com/watch?v=kdiHmSWI2Ks
Fun Videos
- Sonic Boom Compilation (2018). This video shows a variety of clips of jets breaking the sound barrier and causing a sonic boom. It's a fun example based on the practice problem from class where we described a sonic boom as starting quiet, then hearing the boom, and finally hearing the downshifted sound of the plane's engines. Link: https://www.youtube.com/watch?v=x6DUbxCpszU.
- https://www.youtube.com/watch?v=ADTO3VljASY Helpful video that works through doppler effect problem using equation and conceptual reasoning.
- Doppler shift and its relationship with ultrasound: https://www.youtube.com/watch?v=QoBop8L80Fw
- https://www.youtube.com/watch?v=VcwZ3N9anzc This is a video that visually provides an example of a Doppler Shift and its applications.
- Doppler Effect explanation with practice problems
Other/Miscellaneous
- What It Feels Like to Break the Sound Barrier https://youtu.be/gHLhV5E56d8
- An example video of doppler effect. This video makes it really easy to actually hear the doppler effect! https://www.youtube.com/watch?v=p-hBCcmCUPg
- How Does Doppler Radar Work? - https://www.thoughtco.com/how-does-doppler-radar-work-2699232
- Application of Doppler Effect in Cardiology - https://www.youtube.com/watch?v=ZD71Ku_42IQ
- Here is the Doppler Effect explained by Sheldon (a Big Bang Theory character) https://www.youtube.com/watch?v=z0EaoilzgGE
- Here is another way to explain the Doppler Effect using a person and a firetruck. This website also relates this effect to the spectra of distant objects in the Universe. To top is off, it also features a pretty cool song about it too! - https://imagine.gsfc.nasa.gov/features/yba/M31_velocity/spectrum/doppler...