Physics A-Level
Units and unit conversion in cosmology
What Units and unit conversion in cosmology means in Physics A-Level, as defined for OCR.
Definition of Units and unit conversion in cosmology
Check what you remember
Read the wording for your board, then hide it and explain Units and unit conversion in cosmology in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
H₀ must be converted from km s⁻¹ Mpc⁻¹ into SI of s⁻¹ using 1 Mpc = 3.09 × 10²² m before inverting.
Topics that use Units and unit conversion in cosmology
- 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 Units and unit conversion in cosmology in the exam
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