https://www.khanacademy.org/science/in-in-class11th-physics/in-in-11th-physics-waves/in-in-doppler-effect/v/doppler-effect-formula-when-source-is-moving-away 2023-09-10T17:11:17.624018169Z Doppler effect formula when source is moving away Continue your exploration of the Doppler effect by looking at the case where the source is moving away from the listener. Understand the formulas for observed frequency when the source is moving towards or away from the observer. Apply these concepts to real-world scenarios like the changing pitch of a moving train's horn. Sal Khan video https://cdn.kastatic.org/googleusercontent/IFKQk0CdMx_wFOC-D3ov-m-VPPhkDtsaMIgRQu4mke2LgURzRWL5m7bLpJwdxUyIFRU7LVW0sJvXkomDre3jufo Doppler effect formula when source is moving away Continue your exploration of the Doppler effect by looking at the case where the source is moving away from the listener. Understand the formulas for observed frequency when the source is moving towards or away from the observer. Apply these concepts to real-world scenarios like the changing pitch of a moving train's horn. https://cdn.kastatic.org/ka-youtube-converted/KkJ0wL9f2VY.mp4/KkJ0wL9f2VY.mp4 558 Doppler effect and polarization of waves https://www.khanacademy.org/science/in-in-class11th-physics/in-in-11th-physics-waves/in-in-doppler-effect/v/when-the-source-and-the-wave-move-at-the-same-velocity 2023-09-10T17:11:17.624018169Z When the source and the wave move at the same velocity What happens when both the listener and the source are moving together? In this exploration, you'll uncover what happens when the velocity of a wave source matches the wave's speed. You'll delve into the effects on observed frequency and period, leading to a deeper understanding of phenomena like sonic booms. Remember, this discussion applies to any wave, not just sound. Sal Khan video https://cdn.kastatic.org/googleusercontent/fVmdagf7kRH-Q-MaRklcJ1d9JhLDmcQcZk_uDRGvkFY-JTx8iVUqNDjbk6K9hwYTRlfzTtS-zwJ6rKJci9sOtUM When the source and the wave move at the same velocity What happens when both the listener and the source are moving together? In this exploration, you'll uncover what happens when the velocity of a wave source matches the wave's speed. You'll delve into the effects on observed frequency and period, leading to a deeper understanding of phenomena like sonic booms. Remember, this discussion applies to any wave, not just sound. https://cdn.kastatic.org/ka-youtube-converted/4Xgk3vusxT8.mp4/4Xgk3vusxT8.mp4 455 Doppler effect and polarization of waves https://www.khanacademy.org/science/physics/mechanical-waves-and-sound/doppler-effect/v/doppler-effect-for-a-moving-observer 2023-09-10T17:11:17.624018169Z Doppler effect for a moving observer What happens when just the observer is moving? Explore the Doppler effect in sound waves as we examine how the frequency changes when an observer moves towards or away from a sound source. Understand the formulas used to calculate observed frequency, and how speed influences the pitch of the sound. David SantoPietro video https://cdn.kastatic.org/googleusercontent/keP83jiV3hOW5p5wXA-Q8Mxl4u1JnqMdk4_KjzgnM0pnHot1d82hrcly2i0TUuajF_x9Wzka5cYbpfkQg3z2brDDzA Doppler effect for a moving observer What happens when just the observer is moving? Explore the Doppler effect in sound waves as we examine how the frequency changes when an observer moves towards or away from a sound source. Understand the formulas used to calculate observed frequency, and how speed influences the pitch of the sound. https://cdn.kastatic.org/ka-youtube-converted/2TTu0TvB6N0.mp4/2TTu0TvB6N0.mp4 316 Doppler effect and polarization of waves https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:waves-sound-and-physical-optics/x0e2f5a2c:electromagnetic-waves/v/electromagnetic-waves-and-the-electromagnetic-spectrum 2023-09-10T17:11:17.624018169Z Electromagnetic waves and the electromagnetic spectrum Learn how electromagnetic waves are formed from changing electric and magnetic fields. Understand the electromagnetic spectrum, including different regions from visible light to gamma rays and their uses. David SantoPietro video https://cdn.kastatic.org/googleusercontent/hirtkgQIGvSN13j0V4WXIoBtbJryhnwoXNUas4HOVhYNWOoZT-i6n3YKqIHkJreYIB2dlBUVX5slQwB_Xta5t6bE Electromagnetic waves and the electromagnetic spectrum Learn how electromagnetic waves are formed from changing electric and magnetic fields. Understand the electromagnetic spectrum, including different regions from visible light to gamma rays and their uses. https://cdn.kastatic.org/ka-youtube-converted/7eutept5h0Q.mp4/7eutept5h0Q.mp4 662 Doppler effect and polarization of waves https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:waves-sound-and-physical-optics/x0e2f5a2c:electromagnetic-waves/v/polarization-of-light-linear-and-circular 2024-06-20T21:38:16.009746376Z Polarization of light Light, as electromagnetic waves, can oscillate in specific directions. This phenomenon is called polarization. Explore into the difference between polarized and non-polarized light, and see how polarization is important for everyday applications like sunglasses and 3D movies. David SantoPietro video https://cdn.kastatic.org/googleusercontent/7tL6pgtiSpIU5eFrTcNQzpzp-2DuKXVWR7beGIqccMYwl-xFJwmUxc1EpYPQNoKXetgmnxN2orIoBX17iJM1-2UvdA Polarization of light Light, as electromagnetic waves, can oscillate in specific directions. This phenomenon is called polarization. Explore into the difference between polarized and non-polarized light, and see how polarization is important for everyday applications like sunglasses and 3D movies. https://cdn.kastatic.org/ka-youtube-converted/HH58VmUbOKM.mp4/HH58VmUbOKM.mp4 870 Doppler effect and polarization of waves