Physics A-Level
Parallax and distance measurement
What Parallax and distance measurement means in Physics A-Level, as defined for OCR.
Definition of Parallax and distance measurement
Check what you remember
Read the wording for your board, then hide it and explain Parallax and distance measurement in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Because the definition is built from a parallax angle, the parsec links directly to stellar parallax and to the equation d = 1/p.
Topics that use Parallax and distance measurement
- Cosmology (OCR A-Level)
Related terms
- Age of the universe
- Astronomical distance units
- Baseline
- Big Bang nucleosynthesis
- Big Bang theory
- Cosmic microwave background
- Cosmic microwave background radiation
- Cosmological redshift
Using Parallax and distance measurement in the exam
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