Physics A-Level
Rigid-body rotation
What Rigid-body rotation means in Physics A-Level, as defined for OCR.
Definition of Rigid-body rotation
Check what you remember
Read the wording for your board, then hide it and explain Rigid-body rotation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Because ω is the same for all points on a rigid body, v is proportional to r, so points further from the axis move faster in a straight-line sense.
Topics that use Rigid-body rotation
- Centripetal force (OCR A-Level)
Related terms
- Centripetal acceleration
- Centripetal force
- Difference between speed and velocity
- Newton's first law and inertia
- Relationship between linear and angular quantities
- Vector nature of velocity and acceleration
- Centripetal acceleration magnitude and direction
- Constant speed in circular motion
Using Rigid-body rotation in the exam
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