Pre Lab
The Doppler Effect refers to a change in frequency due to the movement of the source of a wave. It has applications that range from tracking the movements of weather patterns to tracking the movements of stars and galaxies. Notice in the picture below that the waves are compressed in the direction of the movement of the source.
For sound waves we perceive this change as a change in sound as the source passes us (think of a race car passing you on the track or the train in the bottom video on the right). If we can analyze how the frequency changes, we can calculate how the source is moving (Doppler radar for weather, red/blue shifts in astronomy).
In the lab this week we will explore this principle through analysis via a computer simulation. Prior to lab please complete the following:
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Lab Video
Simulation
Use the simulation embedded at the following link to explore the Doppler Effect.
Simulation: http://www.falstad.com/ripple/
You may use the simulation to answer the pre lab quiz questions as well.
More info is available at the following site: http://www.animations.physics.unsw.edu.au/jw/doppler.htm
Pre-Lab Quiz is available at the course Blackboard website
Simulation: http://www.falstad.com/ripple/
You may use the simulation to answer the pre lab quiz questions as well.
More info is available at the following site: http://www.animations.physics.unsw.edu.au/jw/doppler.htm
Pre-Lab Quiz is available at the course Blackboard website
Lab
This week you will be completing the Doppler Effect lab found your lab manual.
We will be using digital simulations to complete this lab.
We will be using digital simulations to complete this lab.
Post Lab
Please post a reflection on the lab experience on the Doppler Effect Lab Reflection discussion board on the course Blackboard site.
Be sure to include:
Be sure to include:
- What you did
- Why you did it
- Any interesting observations
- What you learned from doing the lab