Physics A-Level
Equal areas in equal times
What Equal areas in equal times means in Physics A-Level, as defined for OCR.
Definition of Equal areas in equal times
Check what you remember
Read the wording for your board, then hide it and explain Equal areas in equal times in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The line joining a planet to the Sun sweeps out equal areas in equal times, so a planet moves faster when nearer the Sun.
Topics that use Equal areas in equal times
- Planetary motion (OCR A-Level)
Related terms
- Circular orbital motion
- Geostationary orbit
- Geosynchronous orbit
- Gravitational force as the centripetal force
- Period–semi-major-axis relationship
- Uses of geostationary satellites
- Derivation of Kepler's third law
- Elliptical planetary orbits
Using Equal areas in equal times in the exam
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