The doppler effect is a common wave phenomenon that occurs in everyday life. In this phenomenon people observe a change in pitch which is caused by the wavelength and frequency being changed. When the car gets closer to the camera and passes by, the wavelength is decreasing and the frequency is increasing. This change in frequency and wavelength causes the change in sound we hear in the video. The sound change is due to a increase in pitch, the reason we only hear it when the car comes closer is due to the shortened wavelength as it approaches. The graph above shows what the wavelength looks like when the car approaches the camera and the doppler effect occurs. The star represents the car and the X is the camera. You can see how much shorter the wavelengths are near the X, because of how close together they are. The triangle represents anything far away, where the car came from and where its going will look like that in reference to the location of the camera.
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I will be evaluating the the physics involved with a style of dance turns called fouettes. Below is a video of someone demonstrating them. The Physics of Fouettes
Basics :
The right turn above and its safety relates to centripetal force. The construction that was completed on the right was to increase the radius to increase the safety. The equation above is for centripetal force. With the equation, since the mass and velocity both are constant during the turns, increasing the radius decreases the centripetal force which allows for the cars to stay in circular motion while making the right turn and allows them to complete it safely.
The first test was definitely challenging for me. I tried to study as much as I could ,but my concussion definitely made it very hard. When I took the test I found it very hard but that was due to the fact that I couldn't remember much of anything I had studied previously.
I think AP physics is definitely the right class for me. While I think the class will be a challenge I am definitely ready to put in the work. I have never taken a physics class before, but I am looking forward to expanding my knowledge. I am also looking forward to doing more experiments throughout the year. However I am worried about the concepts being very complex and hard to understand. Overall I am enjoying the class so far and looking forward to the rest of the year.
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AuthorCc Larrazabal Archives
April 2019
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