Physical Science Quarter 2 – Module 16 How the Speeds and Distances of Far-off Objects are Estimated (e.g., Doppler Effect and Cosmic Distance Ladder)Last updated on May 23, 2021 SHS Physical ScienceRelatedPhysical Science Quarter 2 – Module 10 The Wave Nature of LightPhysical Science Quarter 2 – Module 6 Understanding Newton’s First Law of MotionPhysical Science Quarter 2 – Module 3 Modern AstronomyPhysical Science Quarter 2 – Module 11 Various Light PhenomenaPhysical Science Module 11: How Energy is Produced and Managed