Physics A-Level
Uneven collisions and resultant random forces
What Uneven collisions and resultant random forces means in Physics A-Level, as defined for OCR.
Definition of Uneven collisions and resultant random forces
Check what you remember
Read the wording for your board, then hide it and explain Uneven collisions and resultant random forces in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Air molecules move rapidly and randomly and collide unevenly with the much larger smoke particles, so the resultant force on a smoke particle changes randomly from moment to moment.
Topics that use Uneven collisions and resultant random forces
- Solid, liquid and gas (OCR A-Level)
Related terms
- Absolute zero
- Brownian motion
- Change of phase
- Constant temperature during phase change
- Energy transfer in melting and boiling
- Experimental observation through a microscope
- Explaining shape, volume and pressure with the model
- Internal energy
Using Uneven collisions and resultant random forces in the exam
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