Physics A-Level
Units and dimensions
What Units and dimensions means in Physics A-Level, as defined for OCR.
Definition of Units and dimensions
Check what you remember
Read the wording for your board, then hide it and explain Units and dimensions in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The SI unit is N kg⁻¹, equivalent to m s⁻².
Topics that use Units and dimensions
- Point and spherical masses (OCR A-Level)
Related terms
- Critical damping
- Direction of gravitational force
- Escape velocity
- Field
- Field strength and line spacing
- Geostationary orbit
- Gravitational field outside and inside a sphere
- Gravitational field strength
Using Units and dimensions in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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