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In this lecture, we will discuss the Doppler effect and how it can be used to determine the velocities of astronomical objects.

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Here the source of waves (the red circle) is moving at 1/2 the speed as the waves it emits. In front of the source, the waves are ...

In this animation, you see waves given off by a star (orange) that is in a mutual orbit around a barycenter (the "+" mark) with a ...

Text at http://howfarawayisit.com/documents/ under 'How far away is it - 16 - Cosmos'.

Basic properties, use. This video is licensed under CC-BY-SA. https://creativecommons.org/licenses/by-sa/4.0/deed.en.

If you have your IB Diploma exams in May 2026, we have intensive revision courses designed to help you feel much more ...

Multimedia project for IP&T 286.

learn about Doppler Effect.

Quick experiment to measure Doppler shift using our Doppler ball. Comments how you would collect data and analyse it to give a ...

Interactive Sound Waves & Doppler Shift.

Here the source of waves (the red circle) is moving at 1/2 the speed as the waves it emits. In front of the source, the waves are ...

In this lecture, we will discuss the Doppler effect and how it can be used to determine the velocities of astronomical objects.

Doppler effect in a transverse wave.

If you have your IB Diploma exams in May 2026, we have intensive revision courses designed to help you feel much more ...

Apparent frequency change as sound moves toward you (higher) and away from you (lower)

If you have your IB Diploma exams in May 2026, we have intensive revision courses designed to help you feel much more ...

The siren from a passing ambulance is often used as an example of the Doppler shift in physics textbooks. But that doesn't work ...